Which of the tubules is impermeable to water?
A) proximal convoluted tubule
B) descending limb of the nephron loop
C) ascending limb of the nephron loop
D) distal convoluted tubule
E) None of the answers is correct. All of the tubules are water-permeable.
Answer: C
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Which of the following statements best describes complete protein?
A) derived from meat and fish only B) must contain all the body's amino acid requirements for tissue maintenance and growth C) derived only from legumes and other plant material D) meets all the minimum daily requirements for a healthy diet
For the following strand of DNA, use the table below to provide: bases for the complementary mRNA and bases for the corresponding tRNA molecules and the associated amino acids. What do you notice about the relationship between the DNA and the anticodons? What do you notice about the genetic code for proline in the peptide? How would the loss of the first G or switching that G to a T affect the
structure and function of this protein?
DNA: GGC CTA CAA GCC GGA ACA GTT ACC GCG TAA CGA
mRNA:
tRNA:
Which of the following can only be found in the female reproductive system?
a. zygote b. gametes c. Gonads d. both A and B are only found in the female reproductive system
Pepsinogen is produced by ________ and is activated by ________, which is secreted by ________
A) parietal cells; carbonic anhydrase (CAH); chief cells B) chief cells; hydrochloric acid (HCl); parietal cells C) enteroendocrine cells; carbonic anhydrase (CAH); parietal cells D) chief cells; carbonic anhydrase (CAH); parietal cells E) parietal cells; hydrochloric acid (HCl); chief cells