Which group of muscles forms a thick, fleshy mass at the base of the thumb?
A. Abductor digit group
B. Hypothenar group
C. Midpalmar group
D. Dorsal interossei group
E. Thenar group
Answer: E
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In the electron transport system (ETS), which of the following are pumped into the intermembrane space, providing the concentration gradient essential for the generation of ATP?
A) oxygen molecules B) water molecules C) ATP molecules D) hydrogen ions E) cytochromes
Sucrose is formed when the simple sugars fructose and glucose are covalently bonded. This reaction releases water. What type of reaction is this?
A. monomeric B. hydrolysis C. catabolic D. dehydration
Which of the following cell types is correctly matched with its function?
A. endocrine cells - produce mucus B. absorptive cells - produce digestive enzymes C. granular cells - absorb nutrients D. goblet cells - produce hormones E. granular cells - produce granules
Why are cells in body organs generally within 100 ?m of a blood capillary?
A. To increase mean diffusion time B. A larger distance maximizes entropy C. To decrease mean diffusion time D. So that larger particles can diffuse more easily