What protein makes up a thick myofilament?

A) T tubules
B) Muscle twitch
C) Testosterone
D) Myosin


Answer: D) Myosin

Biology & Microbiology

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When one molecule of glucose is completely oxidized in aerobic respiration, the net amount of ATP

produced is: a. 2 b. 4 c. 22 d. 34 to 36 e. 36 to 38.

Biology & Microbiology

Animals breathe in air containing oxygen and breathe out air with less oxygen. The consumed oxygen is used:

A. in the Krebs cycle. B. in the glycolysis pathway. C. in the conversion of pyruvate to acetyl Co- A. D. in photosynthesis. E. as an electron acceptor in the respiratory electron transport chain.

Biology & Microbiology

Pulmonary veins carry ____

a. oxygen-rich blood back to the heart b. oxygen-poor blood back to the heart c. oxygen-rich blood away from the heart d. oxygen-poor blood away from the heart e. oxygen-rich blood to and from the heart

Biology & Microbiology

The fertilization process of flowering plants involves ____ nuclear fusion(s)

a. one b. two c. single d. multiple e. incomplete

Biology & Microbiology