Essentials of Biology 3rd Edition Mader Test Bank Full Chapter PDF
Essentials of Biology 3rd Edition Mader Test Bank Full Chapter PDF
Essentials of Biology 3rd Edition Mader Test Bank Full Chapter PDF
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Chapter 8 Cellular Reproduction
3. Which of the following statements is correct regarding the events of the cell cycle?
A. a
B. b
C. c
D. d
E. e
5. Refer to the figure below. Differentiated cells, such as nerve cells, would be in which of the following stages of the
cell cycle?
A. a
B. b
C. c
D. d
E. e
6. The structure labeled "c" in the following figure is called the ________.
A. centromere
B. centriole
C. sister chromatid
D. spindle
E. non-sister chromatid
7. The structures labeled "d" in the following figure are called ________.
A. centromeres
B. centrioles
C. sister chromatids
D. spindles
E. non-sister chromatids
8. Which of the following represents the phases of mitosis in their proper sequence?
A. nucleotides
B. the chromatin network
C. centrosomes
D. nucleosomes
E. mesosomes
11. Susan was examining a cell under the microscope and noticed the formation of a cell plate in the midline of the cell
and the formation of nuclei at opposite poles of the cell. The cell under examination was most likely a(n) _________.
12. While Jeff was looking under the microscope at cells in different stages of mitosis he commented on the fact that
many cells were in the same stage. If you were looking under the compound light microscope at an onion root tip,
what stage would the majority of the cells be in the cell cycle?
A. anaphase
B. metaphase
C. cytokinesis
D. interphase
E. prophase
13. Which of the following organelles would be abundant and in close proximity to the cell plate in a plant cell undergoing
cytokinesis?
A. centrioles
B. Golgi apparatus
C. rough endoplasmic reticulum
D. lysosomes
E. central vacuole
14. The G2 checkpoint prevents the cell cycle from continuing until ________.
16. The figure below shows a cell in the mitotic stage of ________.
A. anaphase
B. interphase
C. metaphase
D. prophase
E. telophase
17. The figure below shows a cell in the mitotic stage of ________.
A. anaphase
B. interphase
C. metaphase
D. prophase
E. telophase
18. The figure below shows a cell in the mitotic stage of ________.
A. anaphase
B. interphase
C. metaphase
D. prophase
E. telophase
19. Ben was looking at onion root tip cells under the microscope in Biology class. He saw one cell that had two nuclei
within it. What stage of the cell cycle was this cell in?
A. anaphase
B. interphase
C. metaphase
D. prophase
E. telophase/cytokinesis
20. A cell is inhibited during the S phase of its cycle. It will not reproduce due to lack of
A. ATP availability.
B. centriole migration.
C. centromere formation.
D. DNA synthesis.
E. plasma membrane structure.
21. If there are twenty centromeres in a cell, how many chromosomes are there?
A. 10
B. 20
C. 30
D. 40
E. 80
22. Cytokinesis usually, but not always, follows mitosis. If a cell undergoes mitosis and not cytokinesis, this would result
in
23. How do the daughter cells at the end of mitosis and cytokinesis compare to their parent cell when it was in G 1 of the
cell cycle?
A. The daughter cells have half of the amount of cytoplasm and half the amount of DNA.
B. The daughter cells have half the number of chromosomes and half the amount of DNA.
C. The daughter cells have the same number of chromosomes and half the amount of DNA.
D. The daughter cells have the same number of chromosomes and the same amount of DNA.
E. The daughter cells have the same number of chromosomes and twice the amount of DNA.
24. All of the following occur during the latter stages of mitotic prophase EXCEPT
A. increasing telomeres
B. preventing spindle formation
C. producing kinases
D. inhibiting cytokinesis
E. causing cells to divide quickly
A. 23 chromatids.
B. 23 chromosomes.
C. 46 chromotids.
D. 46 chromosomes.
E. 92 chromosomes.
28. What would occur in a cell if the production of cyclins halted during the cell cycle?
30. Measurements of the amount of DNA per nucleus were taken on a large number of cells from a growing fungus. The
measure of DNA levels ranged from 3 to 6 picograms per nucleus. One nucleus had 5 picograms of DNA. What
stage of the cell cycle was the nucleus in?
A. G0
B. G1
C. S
D. G2
E. M
31. Susan went to an oncologist because some cancerous cells had been detected within her breast tissue. Which of the
following is NOT a warning signal for cancer?
33. ___ are a type of internal signal molecule used in controlling the cell cycle.
A. Kinases
B. Histones
C. Centromeres
D. Actins
E. Nucleosomes
38. The term metastasis refers to the fact that cancer cells tend to ________.
A. destroy
B. divide
C. reproduce
D. shrink
E. travel
39. Cells grown in a petri dish tend to divide until they form a thin layer covering the bottom of the dish. If cells are
removed from the middle of the dish, the cells bordering the open space will begin dividing until they have filled the
empty space. What does this experiment show?
A. When cells come into contact with other cells, they stop growing.
B. The controls on cell growth and division can be turned on and off.
C. Cell division can be regulated by factors outside of the cell.
D. Cells continue to grow as long as there is adequate space.
E. All answers are valid and correct.
40. Cells grown in a petri dish tend to divide until they form a thin layer covering the bottom of the dish. Which of the
following statements explains why this occurs?
41. If cells in the process of dividing are subjected to colchicines, a drug that interferes with the functioning of the spindle
apparatus, at which stage will mitosis be arrested?
A. telophase
B. anaphase
C. metaphase
D. interphase
E. prophase
42. Cancer is a disorder in which some cells have lost the ability to control their ________.
A. size
B. spindle fibers
C. growth rate
D. surface area
E. volume
43. Rebecca found out that she has a mass of dividing cells called a tumor in her ovaries. She has had tests and is
returning to the doctor. What would the best results the doctor could tell her be?
A. It is a benign tumor.
B. The cells are cancerous and are in situ.
C. It is a malignant tumor.
D. It is malignant ovarian cancer.
E. The tumor has metastasized and invaded neighboring tissue.
44. If cells in the process of dividing are subjected to colchicines, a drug that interferes with the functioning of the spindle
fibers, at which stage will mitosis be arrested?
A. anaphase
B. prophase
C. telophase
D. metaphase
E. interphase
45. Proteins that are involved in the regulation of the cell cycle, and that show fluctuation in concentration during the cell
cycle, are called ________.
A. centromeres
B. kinetochores
C. centrioles
D. proton pumps
E. cyclins
46. A group of cells is assayed for DNA content immediately following mitosis and is found to have an average of 8
picograms of DNA nucleus. Those cells would have _____ picograms at the end of the S phase and _____
picograms at the end of G2.
A. 8; 8
B. 8; 16
C. 16; 8
D. 16; 16
E. 12; 16
47. The figure below shows a cell in the mitotic stage of ________.
A. anaphase
B. interphase
C. metaphase
D. prophase
E. telophase
48. The drug chloral hydrate prevents elongation of microtubules by preventing the addition of new subunits to the
growing end. During which stage of mitosis would chloral hydrate be most harmful?
A. prophase
B. metaphase
C. anaphase
D. telophase
E. interphase
49. Movement of chromosomes during anaphase would be most affected by a drug that
52. Some multicellular organisms, like the hydra, use asexual reproduction to produce a bud that leads to a new
organism. This means that they are using
53. Cells that do not receive the correct signals to move from G1 into S phase will enter G0 and therefore will
54. The spindle serves two rolls in mitotic cell division. These are
55. The mitotic spindle is composed of ______________ and grows from the _______________ toward the center of the
cell.
A. microtubules; centrosome
B. asters; spindle equator
C. centrosomes; aster
D. microtubules; chromatid
E. microtubules; cleavage furrow
56. Plant cells and animal cells differ in cytokinesis because
A. plant cells need to build a cell wall while animal cells do not.
B. plant cells need to build a cell wall while animal cells built the extra cellular matrix.
C. animal cells need to build a cell membrane while plant cells do not.
D. animal cells are living while plant cells are not.
E. plant cells divide by mitosis while animal cells divide by meiosis.
A. actin fibers pull the membrane inward until the two sides touch; the Golgi apparatus produces membrane bound
vesicles filled with materials to make the cell wall.
B. the Golgi apparatus produces membrane bound vesicles filled with materials to make the cell wall; actin fibers pull
the membrane inward until the two sides touch.
C. the centrosome produces membrane bound vesicles filled with materials to make the cell wall; the Golgi apparatus
produces actin fibers to pull the membrane inward until the two sides touch.
D. actin fibers interact to make the cell wall; the cleavage furrow pulls the membrane inward until the two sides touch.
E. the Golgi apparatus produces a cleavage furrow; actin fibers pull the membrane inward until the two sides touch.
When a eukaryotic cell is not undergoing cell division, the DNA and associated proteins have the appearance of
thin threads called chromatin. During mitosis the chromatin condenses multiple times into large loops that
produce highly compacted chromosomes, this starts to occur during prophase.
The cell cycle consists of interphase, mitosis, and cytokinesis. Interphase consists of G 1, S, and G2
A. a
B. b
C. c
D. d
E. e
Mitosis (M phase) is nuclear division. Mitosis occurs after interphase in the cell cycle.
A. a
B. b
C. c
D. d
E. e
Specialized or differentiated cells are in the G0 stage, they will not divide but remain in the G0 phase.
6. The structure labeled "c" in the following figure is called the ________.
A. centromere
B. centriole
C. sister chromatid
D. spindle
E. non-sister chromatid
7. The structures labeled "d" in the following figure are called ________.
A. centromeres
B. centrioles
C. sister chromatids
D. spindles
E. non-sister chromatids
The two halves of a chromosome (the original DNA and the copy) are attached via the centromere. Each half is
called a sister chromatid and they carry the same genetic information.
8. Which of the following represents the phases of mitosis in their proper sequence?
Mitosis is the division of the nucleus; the stages are prophase, metaphase, anaphase, and telophase.
The process of mitosis provides each cell with the same number of chromosomes as the parent cell.
A. nucleotides
B. the chromatin network
C. centrosomes
D. nucleosomes
E. mesosomes
Nucleosomes are beadlike globules formed by DNA and its attached histones.
11. Susan was examining a cell under the microscope and noticed the formation of a cell plate in the midline of the
cell and the formation of nuclei at opposite poles of the cell. The cell under examination was most likely a(n)
_________.
Cytokinesis is the division of the cytoplasm following mitosis that produces two daughter cells. A cell plate is
characteristic of plant cell in cytokinesis.
A. anaphase
B. metaphase
C. cytokinesis
D. interphase
E. prophase
Cells spend the majority of their time in interphase, therefore when looking at a large number of cells, the majority
of the cells would be in interphase.
13. Which of the following organelles would be abundant and in close proximity to the cell plate in a plant cell
undergoing cytokinesis?
A. centrioles
B. Golgi apparatus
C. rough endoplasmic reticulum
D. lysosomes
E. central vacuole
Cytokinesis is the division of the cytoplasm following mitosis that produces two daughter cells. A cell plate is
characteristic of plant cells in cytokinesis. The Golgi apparatus produces the substance that forms the cell plate.
The cell cycle halts momentarily at the G2 checkpoint until the cell verifies that the DNA has replicated. This
prevents the initiation of the M stage unless the chromosomes are duplicated. If DNA is damaged, the cell cycle
will not continue.
15. A mutation results in a cell that no longer produces a normal protein kinase for the M-phase checkpoint. Which of
the following would likely be the immediate result of this mutation?
A M-phase checkpoint also occurs during mitosis when division pauses until the chromosomes are distributed
accurately to the daughter cells. Mitosis will stop until chromosomes are accurately aligned.
A. anaphase
B. interphase
C. metaphase
D. prophase
E. telophase
During anaphase each sister chromatid pulls to opposite poles of the cell.
17. The figure below shows a cell in the mitotic stage of ________.
A. anaphase
B. interphase
C. metaphase
D. prophase
E. telophase
18. The figure below shows a cell in the mitotic stage of ________.
A. anaphase
B. interphase
C. metaphase
D. prophase
E. telophase
The chromatin is coiling together to form chromosomes which is evident by the thick rods within the nucleus. The
nuclear membrane is breaking apart as evident by the irregular shape of the nucleus. These both show that the
cell is in prophase.
19. Ben was looking at onion root tip cells under the microscope in Biology class. He saw one cell that had two nuclei
within it. What stage of the cell cycle was this cell in?
A. anaphase
B. interphase
C. metaphase
D. prophase
E. telophase/cytokinesis
Each new cell has its own nucleus. The cytoplasm is splitting creating two separate cells. These activities are
indicative of telophase with cytokinesis.
20. A cell is inhibited during the S phase of its cycle. It will not reproduce due to lack of
A. ATP availability.
B. centriole migration.
C. centromere formation.
D. DNA synthesis.
E. plasma membrane structure.
In the cell cycle, the S phase is characterized by DNA synthesis prior to the active stages of mitosis.
Chromosomes must duplicate at this stage or there will be an absence of chromosome duplicates to separate
into daughter cells during division.
21. If there are twenty centromeres in a cell, how many chromosomes are there?
A. 10
B. 20
C. 30
D. 40
E. 80
22. Cytokinesis usually, but not always, follows mitosis. If a cell undergoes mitosis and not cytokinesis, this would
result in
If a cell goes through mitosis, but not cytokinesis it will have two nuclei within one cell.
23. How do the daughter cells at the end of mitosis and cytokinesis compare to their parent cell when it was in G 1 of
the cell cycle?
A. The daughter cells have half of the amount of cytoplasm and half the amount of DNA.
B. The daughter cells have half the number of chromosomes and half the amount of DNA.
C. The daughter cells have the same number of chromosomes and half the amount of DNA.
D. The daughter cells have the same number of chromosomes and the same amount of DNA.
E. The daughter cells have the same number of chromosomes and twice the amount of DNA.
The chromosomal information in each daughter cell is identical to the parent cell. The DNA has not yet been
copied. It will be doubled in the S phase of interphase.
24. All of the following occur during the latter stages of mitotic prophase EXCEPT
A. increasing telomeres
B. preventing spindle formation
C. producing kinases
D. inhibiting cytokinesis
E. causing cells to divide quickly
Spindles are used by the cell to pull chromosomes to opposite sides of the cell during the cell cycle.
Mitosis is nuclear division. Prophase, metaphase, anaphase, and telophase are the four stages of nuclear
division.
27. If a cell has 46 chromosomes at the beginning of mitosis, then at the end of anaphase there would be a total of
A. 23 chromatids.
B. 23 chromosomes.
C. 46 chromotids.
D. 46 chromosomes.
E. 92 chromosomes.
During anaphase, the duplicated chromosome separates and it's chromatids move toward opposite poles of the
cell. At this point, each chromatid is now considered a chromosome, since it consists of a complete DNA
molecule. If 46 duplicated chromosomes pulled apart in anaphase, there would now be 92 chromosomes present
in the cell until telophase and cytokinesis completes the chromosome reduction
Cyclins and kinases control the transition of the cell cycle from G 2 to mitosis.
DNA synthesis occurs during the S phase of interphase which is not part of nuclear division (mitosis).
30. Measurements of the amount of DNA per nucleus were taken on a large number of cells from a growing fungus.
The measure of DNA levels ranged from 3 to 6 picograms per nucleus. One nucleus had 5 picograms of DNA.
What stage of the cell cycle was the nucleus in?
A. G0
B. G1
C. S
D. G2
E. M
DNA is replicated during the S phase of interphase. In this scenario the range of DNA levels was from 3-6
picograms. This data tells the reader that a cell entering nuclear division would have six picograms of DNA and
newly formed daughter cell would have three. If the cell in question had five picograms then it must have been in
the process of DNA synthesis.
31. Susan went to an oncologist because some cancerous cells had been detected within her breast tissue. Which of
the following is NOT a warning signal for cancer?
It is normal to have cells going through the cell cycle within any tissue. An abnormality occurs when the cell cycle
has gone out of control causing cells to divide indefinitely.
32. Rick had a high incidence of cancer in his family. Four of the following five statements are preventative measures
to avoid cancer. Which of the following is not correct?
A high fiber, low sodium diet is a preventative measure that can be taken to reduce the risk of cancer.
A. Kinases
B. Histones
C. Centromeres
D. Actins
E. Nucleosomes
Internal signals trigger the activity of proteins associated with cell division. Kinases help regulate DNA synthesis
during the S stage of interphase. Cyclins and kinases control the transition of the cell cycle from G 2 to mitosis.
Cyclins and kinases control the transition of the cell cycle from G 2 to mitosis.
Apoptosis is the intentional, programmed death of a cell. The control of cell division and apoptosis keeps the
number of somatic cells in multicellular organisms in check. Apoptosis can also be used to remove damaged or
malfunctioning cells.
Cancer is a disease of the cell cycle. The regulation of the cell cycle is lost and uncontrolled cell division occurs.
Cancer is a disease of the cell cycle. When cells have abnormal nuclei, lose contact inhibition, lack differentiation,
and have uncontrolled growth these are all signs of cancerous cells.
38. The term metastasis refers to the fact that cancer cells tend to ________.
A. destroy
B. divide
C. reproduce
D. shrink
E. travel
Traveling to other body sites from point of production is a characteristic of cancer cells. This traveling seeds other
body regions with the rapidly dividing cells, thus spreading cancer.
A. When cells come into contact with other cells, they stop growing.
B. The controls on cell growth and division can be turned on and off.
C. Cell division can be regulated by factors outside of the cell.
D. Cells continue to grow as long as there is adequate space.
E. All answers are valid and correct.
The cells continued to grow as long as there was empty space. When cells come into contact with other cells they
would stop growing, or be turned off.
40. Cells grown in a petri dish tend to divide until they form a thin layer covering the bottom of the dish. Which of the
following statements explains why this occurs?
The cells continued to grow as long as there was empty space. When cells come into contact with other cells they
would stop growing, or be turned off. Cell division can be inhibited by the proximity of other cells of the same
type, a process called contact inhibition.
A. telophase
B. anaphase
C. metaphase
D. interphase
E. prophase
The spindle apparatus is necessary to move the chromosomes along the midline of the dividing cell.
42. Cancer is a disorder in which some cells have lost the ability to control their ________.
A. size
B. spindle fibers
C. growth rate
D. surface area
E. volume
43. Rebecca found out that she has a mass of dividing cells called a tumor in her ovaries. She has had tests and is
returning to the doctor. What would the best results the doctor could tell her be?
A. It is a benign tumor.
B. The cells are cancerous and are in situ.
C. It is a malignant tumor.
D. It is malignant ovarian cancer.
E. The tumor has metastasized and invaded neighboring tissue.
During metastasis, a malignant tumor invades neighboring tissues and spreads through the body while a benign
tumor does not invade neighboring tissue.
A. anaphase
B. prophase
C. telophase
D. metaphase
E. interphase
Spindle fibers connect to the centromere and pull the chromosomes toward the midline during metaphase. If the
drug colchincines interfered with the spindle fibers, the chromosomes would not be able to line up, hence
arresting cell division.
45. Proteins that are involved in the regulation of the cell cycle, and that show fluctuation in concentration during the
cell cycle, are called ________.
A. centromeres
B. kinetochores
C. centrioles
D. proton pumps
E. cyclins
The fluctuation in levels of cyclins is one of the main regulators of the cell cycle.
A. 8; 8
B. 8; 16
C. 16; 8
D. 16; 16
E. 12; 16
During the S phase, DNA is doubled. Therefore any stage after the S stage would have twice the amount of DNA
information until two new cells are formed, each with the proper amount of DNA.
47. The figure below shows a cell in the mitotic stage of ________.
A. anaphase
B. interphase
C. metaphase
D. prophase
E. telophase
During interphase, the eukaryotic cell duplicates the contents of the cytoplasm, and DNA replicates in the
nucleus. The duplicated chromosomes are not yet visible. A pair of chromosomes is outside the nucleus, and the
nuclear envelope has not broken down.
A. prophase
B. metaphase
C. anaphase
D. telophase
E. interphase
During prophase spindle fibers attach to the centromeres and pull chromosomes to the midline of the cell. If
chloral hydrate prevents elongation, then the chromosome would not be able to be rearranged to the center of the
cell.
49. Movement of chromosomes during anaphase would be most affected by a drug that
During anaphase each sister chromatid pulls to opposite poles of the cell, in order for this to occur microtubules
need to be shortened. Preventing the shortening of these would inhibit the chromatids from pulling apart.
Mitotic cell division creates a new daughter cell that is identical to the parent cell and, in the case of unicellular
organisms, this gives rise to a new organism.
51. Multicellular organisms undergo mitotic cell division to
Mitotic cell division creates a new daughter cell that is identical to the parent cell leading to an increased number
of cells in a multicellular organism and allowing it to increase in size.
52. Some multicellular organisms, like the hydra, use asexual reproduction to produce a bud that leads to a new
organism. This means that they are using
Asexual reproduction gives rise to a new organism that is genetically identical to the parent organism.
Multicellular organisms like plants and hydra can use this to produce offspring.
53. Cells that do not receive the correct signals to move from G1 into S phase will enter G0 and therefore will
The G0 phase is a nondividing stage that cells enter. Some cells in this phase can receive the go ahead signal
and proceed into S phase and others will never leave G0.
54. The spindle serves two rolls in mitotic cell division. These are
Some of the microtubules that make up the spindle attach to the duplicated chromosomes and pull apart the
sister chromatids while others overlap in the middle of the cell and slide past one another to push the
centrosomes apart elongating the cell.
55. The mitotic spindle is composed of ______________ and grows from the _______________ toward the center of
the cell.
A. microtubules; centrosome
B. asters; spindle equator
C. centrosomes; aster
D. microtubules; chromatid
E. microtubules; cleavage furrow
The spindle is composed of cytoskeletal components called microtubules and grows from the microtubule
organizing center (centrosome) toward the middle of the cell where the chromosomes are located.
A. plant cells need to build a cell wall while animal cells do not.
B. plant cells need to build a cell wall while animal cells built the extra cellular matrix.
C. animal cells need to build a cell membrane while plant cells do not.
D. animal cells are living while plant cells are not.
E. plant cells divide by mitosis while animal cells divide by meiosis.
During cytokinesis animal cells use the cleavage furrow to divide the cytoplasm of the cell and enclose the new
cells in a membrane. Plant cells need to not only enclose the cell in a membrane but to also build the protective
cell wall around the cell.
57. Cytokinesis in plants occurs as _______________ and in animals as ________________.
A. actin fibers pull the membrane inward until the two sides touch; the Golgi apparatus produces membrane
bound vesicles filled with materials to make the cell wall.
B. the Golgi apparatus produces membrane bound vesicles filled with materials to make the cell wall; actin fibers
pull the membrane inward until the two sides touch.
C. the centrosome produces membrane bound vesicles filled with materials to make the cell wall; the Golgi
apparatus produces actin fibers to pull the membrane inward until the two sides touch.
D. actin fibers interact to make the cell wall; the cleavage furrow pulls the membrane inward until the two sides
touch.
E. the Golgi apparatus produces a cleavage furrow; actin fibers pull the membrane inward until the two sides
touch.
The cell wall components are produced in the Golgi apparatus and released in membrane bound vesicles, these
fuse together to form the cell plate between the two new cells. In animal cells actin filaments form the cleavage
furrow and divide the emebrane to form two new daughter cells.
When a cell with damaged DNA is detected the protein p53 initiated the death and fragmentation of the cell; the
resulting fragments are phagocytized to remove the debris.
As DNA loops around histones it coils the DNA into a bead-like structure called a nucleosome and allows the
DNA to fit into a smaller space. In this way the approximately 6 linear feet of DNA can fit into the nucleus of a cell.
Chapter 8 Cellular Reproduction Summary
Category # of Questions
Bloom's Level: 1. Remember 11
Bloom's Level: 2. Understand 13
Bloom's Level: 3. Apply 13
Bloom's Level: 4. Analyze 4
Bloom's Level: 5. Evaluate 8
Figure: 08.03 2
Figure: 08.04 2
Figure: 08.06 4
Learning Outcome: 08.01.02 Explain the role of histones and the nucleosome in the compaction of the chromatin. 1
Learning Outcome: 08.01.03 Explain the role of the centromere in relation to the sister chromatids. 2
Learning Outcome: 08.02.01 Summarize the activities that occur in the cell during each stage of the cell cycle. 10
Learning Outcome: 08.02.03 Summarize the events that occur during the M phase of the cell cycle. 4
Learning Outcome: 08.03.02 Compare cytokinesis in a plant cell and an animal cell. 12
Learning Outcome: 08.04.01 Summarize the role of checkpoints in the cell cycle. 2
Learning Outcome: 08.04.02 Explain how checkpoints are regulated by internal and external signals. 7
Learning Outcome: 08.04.03 Describe the process of apoptosis. 1
Learning Outcome: 08.05.01 Describe the characteristics of cancer cells. 6
Learning Outcome: 08.05.02 Summarize the types of treatment for cancer. 2
Learning Outcome: 08.05.03 Describe how protective behaviors and diet can reduce the risk of cancer. 1
Mader - Chapter 08 49
Section: 08.01 4
Section: 08.02 14
Section: 08.03 12
Section: 08.04 10
Section: 08.05 9
Topic: Cell Cycle and Mitosis 49
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II.
Joku aika sitten hän oli mennyt kihloihin Elli Löfbergin kanssa. Hän
oli nyt melkein valmis lääkäri, lähimmässä tulevaisuudessa hän
saattoi saada viran ja perustaa oman kodin. Hertta ei ollut nähnyt
häntä hänen kihloihin mentyään. Elli Löfberg oli Hertan
koulutovereita, joskin Herttaa useaa vuotta nuorempi. Hän oli vielä
täydellinen lapsi, pintapuolinen ja turhamainen, ilman mitään
vakavampia harrastuksia. Hammarin kihlaus oli sentähden suuresti
kummastuttanut Herttaa. Hammar, joka itse oli niin vakava, melkein
raskasmielinen, mitenkä hän oli voinut kiintyä tuohon pieneen
hupakkoon?
Antti astui salin yli Ellin huoneen ovelle. Hän kolkutti pari kertaa,
mutta kun vastausta ei kuulunut, astui hän sisään.
— Elli, jos minä pyytäisin että sinä minun tähteni luopuisit tuosta
mielihalustasi, niin tuntuisiko se kovin katkeralta?
— Kun puhut noin, Antti, niin voisin tehdä vaikka mitä sinun
tähtesi.
Mutta kun en näe sinua, niin kaikki pahat ajatukset heräävät
minussa.
Elli nyyhkytti. Antti antoi hänen itkeä. Hän siveli hänen vaaleita
kiharoitansa ja hänen valkoista otsaansa. Kuinka hieno hänen
hipiänsä oli ja kuinka punakat hänen huulensa. Antti tunsi
sydämensä värähtelevän. Mitenkä hän olikaan voinut voittaa Ellin
rakkauden, Ellin, joka oli niin hieno ja hento, joka oli kasvanut niin
aivan toisessa maaperässä kuin hän itse?
Ja hänen mieleensä johtui ensi kerta, jolloin hän Elliä oli sylissään
pidellyt. Mikä onnen huumaus oli silloin hänen olentonsa läpi käynyt.
Hän oli tullut niin arkana ja pelokkaana Ellin luo, niin kömpelösti hän
oli tunteensa sanoiksi pukenut, mutta sitten oli kaikki arkuus
kadonnut, ja hän oli nähnyt edessään vain Ellin loistavat silmät.
Siitä oli nyt puoli vuotta kulunut. Hän oli tänä aikana oppinut Elliä
tuntemaan, hän oli useasti saanut kokea, että hän oli hemmoteltu ja
oikullinen lapsi, mutta se ei ollut hänen rakkauttansa vähentänyt. Se
oli vain herättänyt hänessä halun suunnata hänen kehityksensä
oikeaan ja jaloon ja tukahduttaa lapsen heikkoudet, ennenkuin ne
olivat todellisiksi taipumuksiksi muuttuneet.
Hän sai kaikki muut puolellensa ja rouva Illman, joka ehdoitusta oli
vastustanut, koetti selittää, että hän oli aivan samaa mieltä kuin
rouva Taubekin, hän oli vain arvellut, että ehkä kaikki eivät
joulukiireiden vuoksi ehtisi ottaa niihin osaa. Hän puolestansa olisi
valmis työhön milloin hyvänsä.
— Mutta onhan täällä muitakin nuoria kuin neiti Ek, arveli joku. —
Voimmehan kysyä heiltäkin.
— Me tahdomme tanssia!
Antti saattoi hänet eteiseen. Hän tunsi äkkiä iloa ajatellessaan että
hän pian taas olisi tilaisuudessa tavata Herttaa. He voisivat uudistaa
entisen tuttavuutensa ja jatkaa yhdessäoloa aivan kuin ennenkin.
Hänellä oli mielestään niin paljon puhuttavaa Hertalle, niin paljon
kysyttävää ja hän tiesi niin varmaan saavuttavansa ymmärrystä.
IV.
Mies kääntyi ovea kohti, mutta loi vielä pitkän katseen rouva
Taubeen. Se oli niin rukoileva, ja samalla epäluuloinen. Rouva Taube
tunsi pistoksen sydämessään, olisiko hän ollut liian kova tuolle
miehelle, hän olisi ehkä todellakin ansainnut apua. Hän aikoi kutsua
hänet takaisin, antaa hänelle ruokaa, hän ehkä ei ollut syönyt koko
päivään, mutta mies vetäisi jo oven kiinni jälkeensä, ennenkuin
rouva Taube oli ennättänyt mitään tehdä.
Elsa oli aivan isäänsä. Yhä enenevällä huolella rouva Taube näki
tytön harrastusten kääntyvän kaikkeen ulkonaiseen. Ja hän näki
oman vaikutuksensa häviävän aivan mitättömiin, sillä silmittömässä
ihastuksessaan isä ei voinut tyttäreltä mitään kieltää.
Iltaa oli kappale kulunut, kun Hertta Ek astui salin ovelle. Hänen
silmänsä etsi emäntää, mutta kun hän ei häntä mistään keksinyt, niin
hän jäi arasti ovenpieleen seisomaan. Hän seisoi siinä silmät
maahan luotuina, omiin mietteihinsä vaipuneena. Hänen
yksinkertainen tumma pukunsa erosi niin jyrkästi koko hänen
ympäristöstänsä, samoin kuin hänen kasvojensa vakava ilme ei ollut
sopusoinnussa toisten ilosta hehkuvien kasvojen kanssa.
— Mitä teillä tänään oli esillä? kyseli Antti Hertalta. — Onko tullut
uusia tietoja hätämailta?