What chemical induces hypoxia by blocking oxidative phosphorylation in the mitochondria and preventing oxygen metabolism?

A) Lead
B) Ethanol
C) Cyanide
D) Carbon monoxide


Answer: C) Cyanide

Biology & Microbiology

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Pol III holoenzyme of E. coli is composed of:

A. three Pol III cores, two ? clamps, two clamp loaders. B. two Pol III cores, two ? clamps, and one clamp loader. C. two Pol III cores, two ? clamps, and two clamp loaders. D. three Pol III cores, two ? clamps, one clamp loader. E. three Pol III cores, three ? clamps, one clamp loader.

Biology & Microbiology

An insect that resembles leaves is using to avoid predation.

A. warning coloration B. mimicry C. mutualism D. chemical defense E. camouflage

Biology & Microbiology

A growth pattern where a low-density population grows slowly, goes through a rapid growth phase

and then levels off when the carrying capacity is reached is called a. logistic growth. b. exponential growth. c. linear growth. d. ascending growth. e. capacity growth.

Biology & Microbiology

What happens when an animal cell is placed into a hypertonic solution? 

A. plasmolysis B. crenation occurs C. it swells D. it is unchanged

Biology & Microbiology