Digestion of which major nutrient type begins in the stomach?
A. carbohydrates
B. lipids
C. nucleic acids
D. proteins
E. vitamins
D. proteins
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How many reactions in glycolysis directly generate ATP?
A. 1 B. 2 C. 3 D. 4 E. 5
The RNA molecule involved in both transcription and translation is ____________________
Fill in the blank(s) with correct word
Four of the five choices listed describe a species
Select the exception. a. interbreeding b. sexual reproduction c. natural d. population e. behavior
Which of the following statements is true?
(a) The NADH dehydrogenase complex can pump more protons than can the cytochrome b-c1 complex. (b) The pH in the mitochondrial matrix is higher than the pH in the intermembrane space. (c) The proton concentration gradient and the membrane potential across the inner mitochondrial membrane tend to work against each other in driving protons from the intermembrane space into the matrix. (d) The difference in proton concentration across the inner mitochondrial membrane has a much larger effect than the membrane potential on the total proton-motive force.