MEGA
Energy in Biology
Multicellular organisms have a hierarchical structural organization, in which any one system is made up of numer…
Item EB072002: The amount of carbon dioxide is less in blood vessels entering muscles than in blood vessels exiting muscles, whereas the amount of oxygen is great in blood vessels entering muscles than in blood vessels exiting muscles.
The diagram below shows the blood flow entering and exiting a muscle. The blood vessels entering the muscle are red and the blood vessels exiting the muscle are blue.
Which of the following pairs of graphs represents the amount of carbon dioxide and the amount of oxygen in the blood vessels entering and exiting an exercising muscle?
Pre-Test
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
||||
|---|---|---|---|---|---|---|---|---|
| n = 176 |
6–8 n = 0 |
9–12 n = 162 |
Male n = 89 |
Female n = 70 |
English n = 155 |
Other n = 8 |
||
| A. |
 |
17% | NAN% | 18% | 24% | 10% | 17% | 25% |
| B. |
 |
39% | NAN% | 40% | 34% | 46% | 39% | 38% |
| C. |
 |
21% | NAN% | 19% | 19% | 20% | 21% | 13% |
| D. |
 |
23% | NAN% | 23% | 24% | 24% | 23% | 25% |
Post-Test
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
||||
|---|---|---|---|---|---|---|---|---|
| n = 175 |
6–8 n = 0 |
9–12 n = 163 |
Male n = 101 |
Female n = 57 |
English n = 147 |
Other n = 13 |
||
| A. |
|
6% | NAN% | 7% | 6% | 7% | 7% | 0% |
| B. |
|
58% | NAN% | 60% | 60% | 60% | 60% | 46% |
| C. |
|
26% | NAN% | 25% | 24% | 26% | 25% | 31% |
| D. |
|
10% | NAN% | 8% | 10% | 7% | 7% | 23% |