At the end of the electron transport chain in cellular respiration, what molecule is the final electron acceptor?
a. carbon dioxide
b. glucose
c. hydrogen
d. oxygen
Answer: d. oxygen
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The woman scientist who made a major contribution to the discovery of the structure of DNA was _____________________
Fill in the blank(s) with correct word
Which of the following structures in males is shared by both the urinary and reproductive systems?
a. urinary bladder b. prostate gland c. ureter d. vas deferens e. urethra
When a person straightens her arm, she is flexing the triceps brachii. During this movement, the triceps are referred to as the
A. tendon. B. antagonist. C. agonist. D. All of these. E. None of these.
Kinesin 1 is a motor protein molecule consisting of
a. two heavy chains. b. one heavy chain and two light chains. c. two heavy chains and two light chains. d. two heavy chains and four light chains. e. four heavy chains and four light chains.