In a healthy kidney, very little ________ is filtered by the glomerulus.
A. vitamins
B. electrolytes
C. protein
D. amino acids
E. glucose
Answer: C
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Blood pressure in arteries is higher than the blood pressure in capillaries. Blood flows from arteries to capillaries due to the presence of a:
A) homeostatic imbalance. B) positive feedback loop. C) negative feedback loop. D) pressure gradient.
You and your lab partner use a living nerve and muscle preparation to study muscle contraction. When you stimulate the nerve electrically, the muscle contracts; why? When you turn off the stimulator but add a high concentration of caffeine to the fluid surrounding the tissues, the muscle contracts; why (speculate on possible sites/mechanisms of action)? When curare (which blocks neuromuscular
transmission) is added with caffeine, contraction occurs; why (speculate, and how does this alter your previous answer)? Can you identify a single site of action from this information? If not, what additional experiment would narrow your choices? What will be an ideal response?
Blood normally clots in approximately ________
A) 1 minute B) 3 to 6 minutes C) 5 to 10 minutes D) 15 minutes E) 30 minutes
Using the figure below, identify the labeled part.
1. Label A: ______________________________
2. Label B: ______________________________
3. Label C: ______________________________
4. Label D: ______________________________
5. Label E: ______________________________
6. Label F: ______________________________
7. Label G: ______________________________
8. Label H: ______________________________
9. Label I: ______________________________
10. Label J: ______________________________
11. Label K: ______________________________
12. Label L: ______________________________
1.3 Label M: ______________________________
14. Label N: ______________________________
15. Label O: ______________________________
16. Label P: ______________________________
17. Label Q: ______________________________