Evolution
Reproduction, Genes, and Heredity
The protein molecules an organism makes affect the organism’s physical traits, physiology, and behaviors.
Item RH022007: Protein molecules help cells carry out many of their functions, and they are part of body structures such as hair and nails.
Because the traits of organisms depends on the proteins they produce, evolutionary biologists study the proteins that organisms make. Which of the following describes ways that protein molecules are important to an animal?
- Protein molecules help cells carry out many of their functions, and they are part of body structures such as hair and nails.
- Protein molecules are part of body structures such as hair and nails, but they do not help cells carry out many of their functions.
- Protein molecules help cells carry out many of their functions, but they are not part of body structures such as hair and nails.
- Protein molecules do not help cells carry out many of their functions, and they are not part of body structures such as hair and nails.
Pre-Test
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
||||
|---|---|---|---|---|---|---|---|---|
| n = 558 |
6–8 n = 25 |
9–12 n = 498 |
Male n = 243 |
Female n = 274 |
English n = 502 |
Other n = 19 |
||
| A. | Protein molecules help cells carry out many of their functions, and they are part of body structures such as hair and nails. | 54% | 44% | 55% | 51% | 58% | 55% | 32% |
| B. | Protein molecules are part of body structures such as hair and nails, but they do not help cells carry out many of their functions. | 18% | 20% | 17% | 18% | 16% | 18% | 16% |
| C. | Protein molecules help cells carry out many of their functions, but they are not part of body structures such as hair and nails. | 22% | 24% | 22% | 23% | 21% | 21% | 42% |
| D. | Protein molecules do not help cells carry out many of their functions, and they are not part of body structures such as hair and nails. | 6% | 12% | 6% | 8% | 4% | 6% | 11% |
Post-Test (Control)
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
||||
|---|---|---|---|---|---|---|---|---|
| n = 294 |
6–8 n = 23 |
9–12 n = 247 |
Male n = 109 |
Female n = 171 |
English n = 264 |
Other n = 9 |
||
| A. | Protein molecules help cells carry out many of their functions, and they are part of body structures such as hair and nails. | 61% | 70% | 59% | 57% | 63% | 60% | 67% |
| B. | Protein molecules are part of body structures such as hair and nails, but they do not help cells carry out many of their functions. | 15% | 9% | 15% | 14% | 15% | 14% | 0% |
| C. | Protein molecules help cells carry out many of their functions, but they are not part of body structures such as hair and nails. | 20% | 22% | 21% | 25% | 18% | 21% | 22% |
| D. | Protein molecules do not help cells carry out many of their functions, and they are not part of body structures such as hair and nails. | 4% | 0% | 5% | 5% | 5% | 5% | 11% |
Post-Test (Treatment)
Answer Choice |
Overall |
Grades |
Gender |
Primary Language |
||||
|---|---|---|---|---|---|---|---|---|
| n = 281 |
6–8 n = 3 |
9–12 n = 257 |
Male n = 132 |
Female n = 140 |
English n = 254 |
Other n = 11 |
||
| A. | Protein molecules help cells carry out many of their functions, and they are part of body structures such as hair and nails. | 79% | 100% | 79% | 73% | 83% | 78% | 91% |
| B. | Protein molecules are part of body structures such as hair and nails, but they do not help cells carry out many of their functions. | 7% | 0% | 8% | 11% | 4% | 8% | 0% |
| C. | Protein molecules help cells carry out many of their functions, but they are not part of body structures such as hair and nails. | 11% | 0% | 11% | 13% | 9% | 11% | 9% |
| D. | Protein molecules do not help cells carry out many of their functions, and they are not part of body structures such as hair and nails. | 3% | 0% | 3% | 2% | 4% | 3% | 0% |