Which of the following metabolic pathways require(s) molecular oxygen (O2)?
a. aerobic respiration c. alcoholic fermentation
b. lactate fermentation d. all of these
A
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Which of the following produces the most ATP during aerobic respiration?
A. Fermentation B. TCA cycle C. Glycolysis D. Electron transport chain and chemiosmosis E. Susbstrate level phosphorylation
Calcium ions may act as second messengers by binding to __________, which then regulates other
proteins. a. adenylyl cyclase b. cyclic AMP c. calmodulin d. phosphodiesterase e. protein kinase
When a fecal sample is collected from an ill patient, how are each of the following identified: bacterial cell, eukaryotic protist, and virus?
What will be an ideal response?
Which of the following are characteristics of cyclins?
a. They are active only when combined with another cyclin molecule. b. The levels of cyclins remain constant throughout the cell cycle. c. The levels of cyclins fluctuate throughout the cell cycle. d. Cyclins add phosphate groups to target proteins. e. Cyclins remove phosphate groups from target proteins.