Cell Biology Flashcards
Nuclear pore
Allow mrna and ribosomes travel out of nucleus and allow enzyme in
Chromatin
Material the makes chromosomes
Histones
Chromosomes made of section of dna tightly wound around proteins
Nucleolus
Site of ribosome production
Nuclear envelope
Has pores so mrna can pass through
Ribosomes
Site of protein synthesis
Structure or RER
Covered by ribosome
Continuous folding of membrane in nuclear envelope
RER
Protein synthesis
Structure of chloroplast
Surrounded by double membrane
Thylakoids
Membrane bound compartments containing chlorophyll that stack to form grana
Grana is joined by
Lamellae
Chloroplast
Site of photosynthesis
Light dependent stage
Thylakoids
Light independent stge
Stoma
Chloroplast contain
Small dna needed to synthesis protein for chloroplast replication and photosynthesis
Structure of mitochondria
Surrounded by double membrane
Cristae
Made by folded inner membrane
And it is site of electron transport chain
Fluid matrix
Made from cristea containing enzyme needed for producing atp
Mitochondria contains
Mitochondrial dna and ribosomes
SER
Processing and storage of lipids carbs and steroid
Lipid synthesis
Cisternae
Network of tubules extends from cell membrane and connect to nuclear envelope
Golgi appartus
Modifies and packages lipids and proteins
Vesicles
Transport proteins and lipids
Permanent vacuole
Surrounded by tonoplast
keeps the cell rigid and stops the plant from wilting.
Lysosomes
Contains hydrolytic enzymes
Breaks down waste materials
Apoptosis
Centrioles
Make spindle fibres
Cell membrane
Controls movement of substances into and out of the cell
Cell signalling
Flagella
Made from longer microtubules
Cell movement
Cell wall structure
Made from cellulose
Cell wall function
Prevents the cell from bursting
Allows exchange of substances between
Supports the cell
Cilia
Move liquids along in tubes
Cytoskeleton structure
Cell contains a network of protein fibres called microtubules and microfilaments
Fibres made of a protein acting
Cytoplasm structure
Support animal cell
Movement of organelles
Movement requires ATP
Cytoplasm structure
Support animal cell
Movement of organelles
Movement requires ATP