Which of the following describes a membrane as a two-dimensional liquid of a mixed composition?

A. Diffusion
B. Hypertonic
C. Fluid mosaic
D. Isotonic
E. Osmosis


Answer: C

Biology & Microbiology

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The pattern of locomotion used by gibbons and siamangs, where they use their arms to hang below

branches and swing forward, is called

a. bipedal movement. b. peristalsis. c. gliding. d. brachiation. e. orthokinesis.

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What is the ability of a plant to continue to grow throughout its lifetime?

A) determinate growth B) indeterminate growth C) secondary growth D) vernalization

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Why are G-protein coupled receptors often known as 7TM receptors?

a) They have 7 transmembrane ? --helices. b) They have 7 transmembrane ?? -pleated sheets. c) They have 7 nucleotides attached to their structure. d) They have 7 methionine-tryptophan dipeptides in their structure. e) They have 7 tyrosine-methionine dipeptides in their structure.

Biology & Microbiology

What may be a result of the denaturation of proteins?

A. Formation of hydrogen bonds B. Loss of three-dimensional structure C. Removal of R groups from amino acids D. No change in enzyme activity E. Formation of covalent bonds

Biology & Microbiology