The Krebs cycle extracts most of the energy in a glucose molecule and stores it in:

A) ATP. B) O2. C) CO2. D) NADH. E) pyruvic acid.


Answer: D

Biology & Microbiology

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Animals with a body cavity located between the mesoderm and endoderm are _____.  

Fill in the blank(s) with the appropriate word(s).

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Fecal coliforms are useful indicator organisms for the contamination of water by ________.

A. sewage B. agricultural fertilizer runoff C. phosphates D. All of these choices are correct.

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How is active immunity different from passive immunity?

a. Active immunity is slower in onset and shorter-lived. b. Active immunity is slower in onset and longer-lived. c. Active immunity is faster in onset and shorter-lived. d. Active immunity is faster in onset and longer-lived. e. Only active immunity involves antibodies.

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How many embryos did Nadya Suleman’s

doctor put into her uterus?

a. 8 b. 9 c. 10 d. 11 e. 12

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