If photosynthesizing green algae are provided with CO2 synthesized with heavy oxygen (18O), later analysis will show that all but one of the following compounds produced by the algae contain the 18O label. That one is
A) 3-phosphoglycerate.
B) glyceraldehyde 3-phosphate (G3P).
C) glucose.
D) ribulose bisphosphate (RuBP).
E) O2
Ans: E) O2
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Which of the following describes the purpose of the Voices for Evolution project?
a. to provide perspectives in support of teaching evolution in public schools b. to evaluate the ideas presented by the intelligent design theory c. to conduct experiments based on the special creation theory d. to promote teaching multiple evolutionary theories in public schools
If the mRNA sequence is C, G, and U, the matching tRNA sequence will be
A. G, C, and T. B. G, C, and A. C. G, C, and U. D. C, G, and A.
Amylase is an enzyme that breaks down starch. Why can't the same enzyme break down cellulose?
A. The enzyme cannot attack cellulose because of its helical shape. B. Cellulose molecules are much too large. C. Starch is made of glucose; cellulose is made of fructose. D. The bonds between the monosaccharide monomers in cellulose are much stronger. E. The monosaccharide monomers in cellulose are bonded together differently than in starch.
Which of the following statements is FALSE?
a. Potential energy is stored energy; therefore, chemical energy is a type of potential energy. b. Chemical energy refers to the storage of energy in chemical bonds. c. Energy can be defined as the capacity to do work. d. An apple does not have potential energy since it cannot move on its own. e. Work is anything that involves moving matter against an opposing force.