Which of the following statements is correct?
A. Our body can make a subset of the 20 amino acids, and needs proper nutrition to acquire the ones it cannot make.
B. Our body cannot make any of the 20 amino acids and needs proper nutrition to acquire them.
C. Our body can make all 20 amino acids needed.
D. Our body does not require any amino acids to function properly.
Answer: A
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The fetus is not rejected because
A. it is too small. B. it is in an immunologically privileged site. C. the father is immunosuppressed. D. it has no antigens. E. it is in an immunologically privileged site AND the father is immunosuppressed.
Mutations in different types of aquaporin proteins lead to a variety of clinical manifestations, such as diabetes
insipidus, epileptic seizures and cataracts. What best explains the differences in the conditions caused by these mutations?
a. Different types of aquaporin proteins allow different rates of water diffusion. b. Different aquaporin proteins are localized to different membranes in the cell. c. Different types of aquaporin proteins are produced in different cell types.
a. Different types of aquaporin proteins allow different rates of water diffusion. b. Different aquaporin proteins are localized to different membranes in the cell. c. Different types of aquaporin proteins are produced in different cell types.
Plant cells have a ridged cell wall. How do plant cells expand, and how important is cell expansion to plant growth?
What will be an ideal response?
A region of the nephron that regulates the blood pressure in the afferent arteriole, which stimulates the release of aldosterone, is the ________
A) juxtaglomerular apparatus B) glomerulus C) glomerular capsule D) loop of the nephron