Each turn of the citric acid cycle produces which of the following?

a. One ATP molecule
b. Two carbon atoms
c. One NADH molecule
d. Two ATP molecules


a. One ATP molecule

Each turn of the citric acid cycle produces one ATP molecule.

Biology & Microbiology

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In the calculation of Hardy-Weinberg equilibria in the context of nonrandom mating, random mating is represented by the factor f equal to 1

Indicate whether the statement is true or false

Biology & Microbiology

Referring to the above diagram of the brain, which letter identifies the region responsible for relaying sensory input to

the forebrain and functions in reward-based learning?

a. A b. B c. C d. D e. E

Biology & Microbiology

Salted and pickled foods can last unrefridgerated for many years because

A. the extreme salt or pH concentration denatures the proteins, including enzymes. B. the concentration gradient of salt or vinegar causes osmosis into the food. C. equilibrium with the environment has occured. D. the concentration gradient of salt or vinegar causes osmosis out of the food. E. the concentration gradient of salt or vinegar causes osmosis out of the food and the extreme salt or pH concentration denatures the proteins, including enzymes.

Biology & Microbiology

What organism do coral animals harbor inside their bodies to provide them with nutrition?

A) bacteria B) dinoflagellates C) photosynthetic algae D) hydras

Biology & Microbiology