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
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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.
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
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.
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