A student claims that the glucose produced during photosynthesis is not sufficient as a starting material for the production of protein in plants.
1. Glucose is made up of carbon, hydrogen, and oxygen.
2. Proteins contain nitrogen and sometimes sulfur.
3. Plants require energy to convert glucose into protein.
4. Glucose is transported through plants in special tubes called phloem.
When combined, which statements directly support the student's claim?
O 1 and 2
O3 and 4
O 1, 2, and 4
O 1, 3, and 4
Based on the information provided, the statements that directly support the student's claim are statements 2 and 4. Proteins do contain nitrogen and sometimes sulfur, which implies that additional elements are needed to produce proteins besides carbon, hydrogen, and oxygen found in glucose. The statement about glucose being transported through phloem does not directly support the claim but may provide additional context. Statement 3, about plants requiring energy to convert glucose into protein, does not directly support the claim about the sufficiency of glucose as a starting material for protein production. Therefore, the correct answer is O 2 and 4.
The statements that directly support the student's claim are:
O 1, 3, and 4.
Statement 1 acknowledges that glucose is composed of carbon, hydrogen, and oxygen, but it does not directly relate to the production of proteins.
Statement 2 highlights that proteins contain nitrogen and sometimes sulfur, which implies that additional elements are necessary for protein synthesis, while glucose does not provide these elements.
Statement 3 mentions that plants require energy to convert glucose into protein, suggesting that the glucose produced during photosynthesis is not immediately usable for protein production. This aligns with the student's claim that glucose is not sufficient as a starting material for protein synthesis.
Statement 4 indicates that glucose is transported through plants in special tubes called phloem. Although this statement does not directly address protein production, it provides additional context for the transportation of glucose within plants.