1. Chemical buffer systems buffer changes in acid or base levels promote H + exc
ID: 3473245 • Letter: 1
Question
1.
Chemical buffer systems
buffer changes in acid or base levels
promote H+ excretion by the kidneys when acidosis occurs
are the most powerful mechanism for regulating changes in [H+] within the body
stimulate the respiratory center when acidosis occurs
respond in one to three minutes to changes in hydrogen ion concentration
2.
5,300 calories is ____ kilocalories.
0.53
00.53
5,300,000
5.3
53
3.
_________ does not act as a satiety signal?
Leptin
Cholecystokinin
Orexin
Insulin
Increased glucose utilization
4.
The primary ECF cation is ____, and the primary ICF cation is ____.
K+; Na+
Ca2+; Na+
Na+; Ca2+
Na+; K+
K+; Ca2+
5.
When a negative energy balance exists,
the body must make use of stored energy reserves
the caloric content of the food ingested is less than the energy output
the caloric content of the food ingested exceeds the energy lost due to heat or work
energy has been destroyed by catabolic processes within the body
both a and b are true
6.
Identify the item that has a pH the farthest away from that in a human cell:
pure water
milk
orange juice
sea water
bleach
a.buffer changes in acid or base levels
b.promote H+ excretion by the kidneys when acidosis occurs
c.are the most powerful mechanism for regulating changes in [H+] within the body
d.stimulate the respiratory center when acidosis occurs
e.respond in one to three minutes to changes in hydrogen ion concentration
2.
5,300 calories is ____ kilocalories.
a.0.53
b.00.53
c.5,300,000
d.5.3
e.53
3.
_________ does not act as a satiety signal?
a.Leptin
b.Cholecystokinin
c.Orexin
d.Insulin
e.Increased glucose utilization
4.
The primary ECF cation is ____, and the primary ICF cation is ____.
a.K+; Na+
b.Ca2+; Na+
c.Na+; Ca2+
d.Na+; K+
e.K+; Ca2+
5.
When a negative energy balance exists,
a.the body must make use of stored energy reserves
b.the caloric content of the food ingested is less than the energy output
c.the caloric content of the food ingested exceeds the energy lost due to heat or work
d.energy has been destroyed by catabolic processes within the body
e.both a and b are true
6.
Identify the item that has a pH the farthest away from that in a human cell:
a.pure water
b.milk
c.orange juice
d.sea water
e.bleach
Explanation / Answer
1. Chemical buffer systems : Are the most powerful system for regulating the concentration of H+ ion in the body.
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