Cytology Mcqs

Cytology
Choose the correct answer:
Cytology
1- As regards Golgi apparatus:

a. It can be stained with silver.
b. It is always apical in all cells.
c. It is formed of parallel cisternae.
d. It is connected to outer nuclear membrane.
e. It is concerned with lipid synthesis.
2- All of the following are membranous organelles EXCEPT:

a. Mitochondria. b. Ribosomes.
c. Golgi apparatus. d. rER.
e. sER.
3- The organelle responsible for renewal and maintenance of cell

membrane is:
a. Golgi A. b. Lysosomes.
c. mitochondria. d. sER.
e. rER.
4-Localized cytoplasmic basophilia indicates the presence of:

a. Mitochondria. b.DNA.
c. Golgi apparatus. d. sER.
e. rER.
5-Two organelles share in the formation of Lysosomes:

a. rER & sER.
b. sER & Golgi.
c. Golgi&cell membrane.
d. rER & cell membrane.
e. rER & Golgi.
6-Autolysosomes are formed when a 1ry lysosome fuses with:

a. an old organelle.
b. a phagosome.
c. a pinocytic vesicle.
d. a residual body.
e. a multivesicular body.
With my best wishes

Dr.Marwa Mohamed Abdelsalam
Cytology
7-Cytoplasmic basophilia observed in LM is due to:

a. Golgi apparatus.
b. Euchromatin.
c. rER & ribosomes.
d. Heterochromatin.
8-A brown fibrillar network in the cytoplasm demonstrated by silver

(Ag) stain represents:
a. Primary Lysosomes.
b. Secondary Lysosomes.
c. Golgi complex.
d. Ribosomes.
e. sER.
9-Concerning rER, all are true except:

a. Its sites cause localized or diffuse basophilia.
b. Shares in drug detoxification.
c. Its limiting membranes have ribosomes.
d. Responsible for protein segregation.
10-In H&E – stained sections of Plasma cell, Golgi apparatus appears:

a. Perinuclear. b. Apical.
c. – ve Golgi image. d. Basal.
e. as a network of brown granules and fibers.
11-Ribosomes are:
a. membranous organelle.
b. exogenous pigment.
c. stored food.
d. type of chromatin.
e. non membranous organelle.
12-The factories of protein synthesis:

a.mitochondria.
b.lysosomes.
c.ribosomes.
d.smooth endoplasmic reticulum.
e.peroxisomes.
With my best wishes

Cytology
13-Enzymes associated with drug detoxification are associated with:

a. sER.
b. rER.
c. Golgi.
d. Inner mitochondrial membrane.
e. outer mitochondrial membrane.
14-The following structures are basophilic in staining except:

a.ribosomes
b.chromatin
c.nucleolus
d.lysosomes
15-Which membranous organelle is prominent in cells that synthesize

steroid hormones:
a. rER b. sER
c. mitochondria d. Golgi apparatus
e. lysosome
16-Concerning ribosomes all are true except:

a.formed in the nucleolus.
b.formed of rRNA associated with proteins.
c.cause cytoplasmic basophilia.
d.formed of two subunits of unequal size.
e.concerned with beta oxidation of long chain fatty acids.
17-A Protein forming cell has all these characters EXCEPT:

a. Has basophilic cytoplasm. b. has great number of ribosomes.
c. Is rich in rER. d. Has pale active nucleus.
e. Has well developed sER.
18-The diameter of microtubules is:

a. 15 nm.
B. 6 nm.
C. 8 nm.
d. 30 nm.
e. 25 nm.
With my best wishes

Cytology
19-Microtubules are formed of proteins called:

a-actin.
b-myosin.
c-tubulin.
d-clatrin.
e.vimentin.
20-The axoneme of the cilia has:

a.27 microtubules.
b. 2 microtubules.
c.18 microtubules.
d.9 microtubules.
e. 20 microtubules.
21-The basal body of the cilia has:

a.27 microtubules.
b.20 microtubules.
c.18 microtubules.
d.9 microtubules.
e.2 microtubules.
22-The centrioles have:

a.27 microtubules.
b.20 microtubules.
c.18 microtubules.
d.9 microtubules.
e.2 microtubules.
23-Vimentin intermediate filaments are present in:

a. hair.
b.Vascular smooth muscle.
c.neurons.
d.glial tissue.
e. nail.
With my best wishes

Cytology
24-Keratin intermediate filaments are present in:

a. in epithelial cells and form hair.
b. connective tissue.
c. neurons.
d. glial tissue.
e. muscle.
25-Neurofilaments intermediate filaments are present in:

a. in epithelial cells and form hair.
b. connective tissue.
c. neurons.
d. glial tissue.
e. muscle.
26-Desmin intermediate filaments are present in:

a. hair.
b. to join the myofibrils in muscle.
c. neurons.
d. glial tissue.
e. nail.
27- All the followings are exogenous pigment except:

a. carbon.
B. melanin.
C. carotene.
d. tattoo marks.
e. dust.
28-Endogenus pigments:
a.haemoglobin.
b.carbon.
c.carotene.
d.tattoo marks.
e.dust.
With my best wishes

Cytology
29. Actin filaments:

a. share in formation of cilia.
b.share in formation of flagella.
c.share in formation of mitotic spindle.
d.share in neurons to support processes.
e. share in formation of microvilli.
30- Myosin filaments:

a. share in muscle contractions.
b. share in formation of microvilli.
c. share in formation of mitotic spindle.
d. share in neurons to support processes.
e. share in formation of flagella.
31- Fats are stained with:

a. iron haematoxylin.
b. silver stain.
c. sudan III.
d. janus green.
e. PAS.
32- Glycogen granules are stained with:

a. osmic acid.
b. silver stain.
c. sudan III.
d. janus green.
e. Best's carmine.
33-The following statements are true except:

A- heterochromatin, as seen in EM, is lighter staining DNA.
B- The nucleolus is the region within the nucleus where rRNA is
formed.
C- the function of SER includes lipid synthesis and steroid
hormone synthesis.
D- RER & SER can be continuous.
With my best wishes

Cytology
Correct the underlying word:

1- Multivesicular bodies are primary lysosomes fused with
phagosomes.
2- Primary lysosomes appear as heterogenous vesicles.
3- Large number of lysosomes are found in protein-forming cell.
4- rER is concerned with lipid and cholesterol synthesis.
5- The concave surface of Golgi receives transfer vesicles from rER
6- lysosomes cause cytoplasmic basophilia due to their acidic content
of RNA.
7- each peroxisome is formed of two subunits small &large.
8- attached ribosomes form proteins for local use of the cell.
9- sER is formed of curved saccules with expanded ends.
10- Lysosomes arise directly from rER.
11- sER is concerned with renewal of cell membrane.
12- Mitochondria is considered the digestive apparatus of the cell.
13- Secretory vesicles bud off from the convex surface of Golgi.
14-centriols are two cylindrical structures parallel to each other
15-the peripheral wall of centriole is formed of 9 triplets of
microtubules
16-cilia grows from the basal bodies &remain attached to it
17-from each triplet the outer 2 microtubules(B&C) grow to form the
doublets of the shaft of a cilium
18-rootlets of a cilium is formed by down growth of the inner
microtubule (A) of the basal body
19-flagella are similar in structure to the axoneme of a cilium but
extremely longer
20-actin filaments form a band beneath the cell membrane called
(peripheral ectoplasm)
21-in microvilli thick myosin filaments form their core to keep their
shape
22-keratin filaments initiate cell membrane mobility &change in shape
23-in skeletale muscle actin interact with desmin for contraction
24-Chromatin is mostly condensed in protein forming cells
25-Desmin &vimentin are intermediate filaments present in muscle cell
26- The perinuclear space is continous with cisternae of RER
With my best wishes

Cytology
Answers
Choose the correct answer:

1 A 9 B 17 E 25 C 33 A
2 B 10 C 18 E 26 B
3 A 11 E 19 C 27 B
4 E 12 C 20 E 28 A
5 E 13 A 21 A 29 E
6 A 14 D 22 A 30 A
7 C 15 B 23 B 31 C
8 C 16 E 24 A 32 E
Correct the underlying word:
1-Heterolysosomes.
2-Homogenous
3-Ribosomes
4-SER
5-Convex
6-Ribosomes
7-Each ribosome
8-Free ribosomes
9-Golgi apparatus
10- Golgi apparatus
11- Golgi apparatus
12-Power house
13-Concave
14-Perpendicular to each other
15-True
16-True
17-Inner 2 microtubules (A&B)
18-Outer microtubule (c) of the basal body
19-True
20-True
21-Thin actin filaments
22-Actin filaments
23-Actin interact with myosin
24-Extended
25-True
26-True
With my best wishes


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Cytology

Choose the correct answer:

1- As regards Golgi apparatus:

2- All of the following are membranous organelles EXCEPT:

3- The organelle responsible for renewal and maintenance of cell

4-Localized cytoplasmic basophilia indicates the presence of:

5-Two organelles share in the formation of Lysosomes:

6-Autolysosomes are formed when a 1ry lysosome fuses with:

With my best wishes

7-Cytoplasmic basophilia observed in LM is due to:

8-A brown fibrillar network in the cytoplasm demonstrated by silver

9-Concerning rER, all are true except:

10-In H&E – stained sections of Plasma cell, Golgi apparatus appears:

12-The factories of protein synthesis:

With my best wishes

13-Enzymes associated with drug detoxification are associated with:

14-The following structures are basophilic in staining except:

15-Which membranous organelle is prominent in cells that synthesize

16-Concerning ribosomes all are true except:

17-A Protein forming cell has all these characters EXCEPT:

18-The diameter of microtubules is:

With my best wishes

19-Microtubules are formed of proteins called:

20-The axoneme of the cilia has:

21-The basal body of the cilia has:

22-The centrioles have:

23-Vimentin intermediate filaments are present in:

With my best wishes

24-Keratin intermediate filaments are present in:

25-Neurofilaments intermediate filaments are present in:

26-Desmin intermediate filaments are present in:

27- All the followings are exogenous pigment except:

With my best wishes

29. Actin filaments:

30- Myosin filaments:

31- Fats are stained with:

32- Glycogen granules are stained with:

33-The following statements are true except:

With my best wishes

Correct the underlying word:

With my best wishes

Choose the correct answer:

With my best wishes

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