Intro to the Cell Flashcards
How many membranes does the mitochondria have
2
where are cytochromes located
inner membrane of mitochondria
what are cytochromes
iron containing proteins that aid in transportation of molecules during oxidative phosphorylation
why is ATP important
cell differentiation, growth and reproduction, thermogenesis, muscular contraction
what percentage of ATP is made via OxPhos
95% (20x more than anaerobic)
where does protein synthesis begin?
nucleolus
what does transcription produce
mRNA
what happens during translation
mRNA attaches to ribosome on rough ER while tRNA brings amino acids to build protein
what happens during transportation
finished protein travels to GA for any necessary modifications then transported to surface of cell in secretory vesicle for release
what is the function of peroxisomes
detoxifies cells and holds free radicals that could damage cell
what is the function of lysosomes
digest and breakdown larger components
what kind of molecules easily pass through membrane
hydrophobic and small uncharged molecules
ideal concentration of Na+ inside and outside of the cell
low concentration inside the cell and high concentration outside of the cell
ideal concentration of K+ inside and outside of the cell
high concentration inside the cell and low concentration outside of the cell
how many molecules does Na-K ATPase Pump move
3 Na+ out and 2 K+ in
