What occurs at the bridge step?
a. The formation of succinyl CoA
b. The production of GTP
c. Decarboxylation of pyruvic acid
d. The formation of oxaloacetate
Answer: c. Decarboxylation of pyruvic acid
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Which of the following is NOT TRUE of the absorptive period?
A. Glucose absorption from the gut is high. B. Glucose utilization by cells is high. C. Fat utilization by cells is high. D. Synthesis of triglycerides is high. E. Breakdown of glycogen is low.
Toxoplasma gondii infects the brain, as do many other pathogens. However, Toxoplasma differs from other pathogens in that it
A. causes tumor formation in the brain. B. manifests in behavioral changes in the host. C. causes destruction of brain tissue. D. always kills the host.
The gel-like fluid substance within a mitochondrion is called the
A. cristae. B. effluvium. C. villi. D. rugae. E. matrix.
A fertility doctor is trying to determine why a couple is infertile. It has been determined that the woman is fertile, so the problem may be with the man. In analyzing his semen, the doctor notices adequate sperm production, but the sperm are largely
inactive. He concludes that the semen may be lacking in proper nutrients for the sperm. Which structure would be the most likely candidate for the source of the problem? A) vas deferens B) seminiferous tubules C) seminal vesicles D) urethra