Cells Flashcards
(21 cards)
Nucleus structure
Nuclear envelope, nuclear pores, nucleoplasm, chromosomes, nucleolus
Nucleus function
DNA replication, transcription, and contains genetic code of each cell
Endoplasmic reticulum structure
Rough and smooth ER both have cisternae. Rough have ribosomes
Endoplasmic reticulum function
RER does protein synthesis. SER does lipid and carb store/synthesis
Golgi apparatus and vesicles structure
Folded membranes making cisternae, secretory vesicles pinch off cisternae
Golgi apparatus and vesicles function
Form glycoproteins and secretory enzymes, secrete carbohydrates, transport modify and store lipids
Golgi apparatus and vesicles structure
Folded membranes making cisternae, secretory vesicles pinch off cisternae
Lysosome structure
Bags of digestive enzymes
Lysosome function
Hydrolyse phagocytic cells, autolysis (break down dead cells), exocytosis, and digest old cells for reuse
Mitochondria structure
Double membrane, cisternae, matrix, loop of DNA
Mitochondria function
Site of aerobic respiration and ATP synthesis
Ribosomes structure
2 subunits if protein and rRNA. 80s or 70s
Ribosomes function
Site of protein synthesis
Vacuole structure
Filled with fluid surrounded by tonoplast
Vacuole function
Make cells turgid, temporary store of sugars and amino acids
Chloroplast structure
Double membrane, thylakoids, stroma contains enzymes for photosynthesis
Chloroplast function
Site of photosynthesis
Cell wall structure
In plants made of microfibrils of cellulose polymer. In fungi made of chitin
Cell wall function
Structural strength to cell
Plasma membrane structure
Phospholipid bilayer
Plasma membrane function
Control entrance and exit of molecules
