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quiz questions

Terms in this set (20)

transport two or more different solutes simultaneously
contransporters
aquaporins a specialized channel protein that allow
the passive movement of water
T/F active transport requires protein carriers to move across the plasma membrane
true
T/F ATP powered pumps use the hydrolysis of ATP to drive conformational change in transporter proteins
True
iodine is an essential component to make thyroxine hormone in the thyroid gland. Iodine from blood transports what to the thyroid gland
all of the above
chloroplasts and mitochondria both
all of the above
which one is not a function of mitochondria
transport of sugar molecules in the endoplasmic reticulum
what features are most commonly shared by photosynthesis and respiration
production of atp
which is the correct order of the steps of glucose oxidation in eukaryotes
glycolysis, citric acid cycle, electron transport chain, production of ATP
which of the following regarding glucose catabolism is not true
oxygen is required for the maximal production of atp from a glucose molecule
ribosomes initiate nascent protein synthesis in the cytosol. Nascent proteins translocated into the ER lumen or embedded in the ER membrane., What protein-sorting pathway cell follows in such kind of transport
secretory pathway
this experimental system was used by claude de duve and palade to elucidate the pathway of moving secreted proteins in a cell from synthesis on the ER, through the golgi and transport vesicles ultimately to the plasma membrane. It involves incubating cells with radioactive amino acids then washing that solution away and culturing the cells for different lengths of time before visualizing the location of radioactively labeled proteins
pulse chase experiment
T/F BiP chaperone proteins bind nascent peptides as they translocate into ER and prevent improper folding and aggregation
true
this ER membrane protein functions as a channel through which all ER targeted proteins are inserted into the ER lumen or as transmembrane proteins
translocon
T/F a signal sequence, SRP (signal recognition particle), and SRP receptor system are essential components to insert the nascent peptide into the mitochondrial membrane
false
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