A lack of vitamin C in the diet results in which of the following?
A. A mutation in the gene for elastin
B. A mutation in the gene for collagen
C. Abnormally loose collagen fibers, loose joints, and stretchy skin
D. Decreased production of the amino acids proline and lysine leading to weak collagen
E. Atrophy of skeletal muscle tissue
D. Decreased production of the amino acids proline and lysine leading to weak collagen
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When a small, polar solute binds to a membrane protein that then changes shape and transports the solute across the membrane, the process is known as
A. simple diffusion. B. channel-mediated diffusion. C. carrier-mediated diffusion. D. active transport. E. endocytosis.
Which structure links the right and left sides of the gray matter in the spinal cord?
A. The posterior horn B. The ventral horn C. The posterior ramus D. The central canal E. The gray commissure
Miguel fell out of a tree and broke his fall by putting his arm out, fracturing his radius and ulna. The bones were still aligned at the fracture site. Which specific type of bone fracture is Miguel most likely to have?
A. Stress fracture fracture B. Spiral fracture C. Nondisplaced fracture D. Avulsion fracture E. None of the choices are correct.
The superficial vein of the posterolateral leg is known as the great saphenous vein.
a. true b. false