Which word best describes the structure of the cell membrane?

A.) bi-layer
B.) rigid
C.) impermeable
D.) nonpolar


Ans: A.) bi-layer

Biology & Microbiology

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In a human pedigree that traces the inheritance of albinism, a filled square represents a

A) male with albinism. B) female with albinism. C) heterozygous male. D) heterozygous female.

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The world’s forests are rapidly being lost to

a. fires. b. fungal diseases. c. logging. d. hurricanes. e. decrease in soil fertility.

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An increase in sympathetic nervous activity to arterioles will have little effect on vasoconstriction of the

A) brain and heart. B) heart and kidneys. C) kidneys. D) skeletal muscles. E) gastrointestinal tract

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If you ate a piece of toast covered with butter, which macromolecule components would result after your body breaks down the food?

A) amino acids and glycerol B) glycerol, fatty acids, and monosaccharides C) monosaccharides and amino acids D) fatty acids, amino acids, and polysaccharides

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