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Cell Bio Midterm

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Câu lạc bộ USTH Learning Support trân trọng giới thiệu.

CELLULAR BIOLOGY – MIDTERM REVISION


Pre-Class Exercised
Mục lục
Lecture 1: Basics of cell and organism 2
Lecture 2: The chemical components of the cell 2
Lecture 3: The cell structure (eukaryotes) 2
Lecture 4: Cell membrane and transportation 3
Lecture 5: Nucleus 3

Lecture 1: Basics of cell and organism


Compare prokaryotic and eukaryotic cells

Lecture 2: The chemical components of the cell


Finish the table of macromolecules in biology.
Bonding Between Higher-Order
Name Example Monomer Biological Functions
Monomers Structure (nếu có)
Có Trong Rượu - Các store energy
Carbohydrate Glucose covalent bond
Loại Đường
Lipid phospholipid fatty acids hydrophobic interaction
Nucleic acid DNA DNA covalent bond
Protein peptide
Lecture 3: The cell structure (eukaryotes)
Finish the table of structures in eukaryotic cells.
Name Structure Function Structural Sketch
Plasma membrane bilayer of phospholipids protects the cell
đầu ưa nước (philic) create stable
đuôi kị nước (phobic) environment
act like border to
regulate what go in and
out
controls cell activities
Nucleus bilayer
ribosomes synthesis
network of membranous
make secretory protein
sacs and tubes
Rough ER protein modification
ribosomes attached to
membrane synthesis
surface
regulate calcium
Hollow tubes destroys toxic
Smooth ER
no ribosomes attached substances
makes membrane lipids
protein and phospholipid
stacks of flattened sacs
modification
Golgi body cis and trans faces
transport secretory
(receive and shipping)
protein to membrane
single membrane for
golgi body
Secret product after
hydrolysis enzymes
Lysosome ingesting into cytoplasm
auto and hetero and
to reuse
crino(digest excess
secretory product)
single membrane from
detoxification (like
ER
Peroxisome alcohol,hydrogen
oxidative enzymes
peroxide)
metabolic activities
Ribosome protein +rRNA synthesize protein
floating
attach to rough ER
pro70s mito 70s eu 80s
powerhouses of the
2 membrane separated
cells
Mitochondria by a space
create intermediate
cristae (heavily folded)
metabolites
Cytoskeleton double helix
shorter and numerous Sweep movement,
on cells 50 um/longer locomotion, feeding,
Cilia and flagella
but fewer 1um circulation/undulatory
Eu/ Pro and Eu movement, locomotion

2 membrane Convert solar energy to


Thylakoids: stacks of chemical energy by
Chloroplasts granum photosynthesis
circular dna and create intermediate
ribosomes metabolites

Store mineral,protein,
Fluid filled sacs
water,etc
large center
contain hydrolytic
membranous structure
Vacuoles enzymes
in PLANT CELLS
Attract pollinating
exist in some protists
animals with colorful
and animals
pigments

Protein secretions pathway: nucleus->ribosome->rough ER->vesicle->cis golgi->trans golgi->vesicle->plasma


membrane

Lecture 4: Cell membrane and transportation


Finish the table of types of transportation through the cell membrane.
Simple Facilitated Active Endo- and
Properties Co-transport
diffusion diffusion transport exo-cytosis
Required specific
t
proteins
Transport against
gradient
Coupled to ATP
hydrolysis
Driven by movement of a
cotransported ion down
its gradient
The characteristic of
substances transported
by this way
Example of molecules
transported by this way
Lecture 5: Nucleus
Describe the structure of a nucleosome:
– What are its components? Envelope, lamina, nucleolus,nucleoplasm,chromatin
– What are their functions?
Envelope: double membrane
Lamina: Beneath the inner membrane, physicals sp
Nucleolus: dense, membrane-less
Chromatin:heterochromatin, euchromatin
Nucleosome: histone protein H2A,H2B,H3,H4
Chromosome: short, long arm, centromere
– How do they arrange in a nucleosome?
ds-DNA /nucleosome/chromatin/chromosome

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