Important BIO Test Questions?

Question

1. Vitamins
a) provide energy to the body
b) regulate processes in the body
c) remove waste
d) digest proteins

2. The surface are of the small intestine is increased greatly by
a) vili
b) chemical digestion
c) peristalsis
d) rhythmical segmentation

3. Hyperventilation
a) increases the amount of carbon dioxide in the lungs
b) increase the vital capacity of the lungs
c) increase the concentration of O2 in the bloodstream
d) reduces the time a swimmer can remain under water
e) reduces the body temperature slightly

Answer 1

1b 2a 3c

Answer 2

1.Vitamins
B. regulate processes in the body
-Vitamins regulate metabolism, help convert fat and carbohydrates into energy, and assist in forming bone and tissue

2. The surface [(are) typo?] of the small intestine is increased greatly by:
A. Villi
-The inner surface of the small intestine is a highly textured surface because of the presence of microscopic finger-like projections called villi. These villi greatly increase the surface area available for absorption. Each villus is, in turn, covered with small projections called microvilli which further increase surface area. Together, the villi and microvilli yield a surface area more than 150 times that of your skin.

3. Hyperventilation
C. increase the concentration of O2 in the bloodstream (although this answer is somewhat ambiguous, it actually reduces CO2, but...eh, whatever)
- Hyperventilation is breathing that is deeper and more rapid than normal. It causes a decrease in the amount of a gas in the blood (called carbon dioxide or CO2).

Answer 3

1 b)
2 a)
3 c)

Answer 4

1 b
2 a
3 c

Answer 5

If those are all the questions - you will get a 100%

Answer 6

b
a
c

Answer 7

1) d
2) a
3) c