The mutual interaction of substrate and enzyme is described as a(n)
A. lock and key arrangement.
B. induced fit.
C. active site.
D. allosteric site.
E. active site AND allosteric site.
B
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Which of the following is not a description of the cell membrane?
A. It is composed of phospholipid molecules. B. It is a mosaic structure. C. It is a rigid structure. D. It is a bilayered structure. E. It is a fluid structure.
Which one of the following separates neighboring vertebrae and also functions as shock absorbers?
A) ribs B) palatine bones C) intervertebral disks D) intravertebral disks E) osteons
Which of the following has negligible mass?
a. atom b. element c. proton d. neutron e. electron
Both plants and animals need mitochondria to
A) produce glucose B) produce ATP C) produce lipids D) manufacture phospholipids E) break down proteins