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(D) The correct answer is $D$. In the process of photosynthesis,the carbon source is $CO_2$,which is incorporated into the glucose molecule during the

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Only glucose is labelled and oxygen is normal

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(D) The correct answer is $D$. In the process of photosynthesis,the carbon source is $CO_2$,which is incorporated into the glucose molecule during the Calvin cycle. Since the plant is supplied with the radioactive isotope $^{14}CO_2$,the carbon atoms in the resulting glucose molecule will be radioactive (labelled). Oxygen released during photosynthesis is derived from the photolysis of water $(H_2O)$,not from $CO_2$. Therefore,the oxygen released will be normal $(^{16}O)$ and not labelled.

$A$ plant is provided with ideal conditions for photosynthesis and supplied with isotope $^{14}CO_2$. When the products of the process are analysed carefully,what would be the nature of products?

Similar Questions

For the fixation of $1$ $CO_2$ molecule,the amount of energy required is:

$A$: Biosynthetic phase of photosynthesis depends directly on the presence of light.
$R$: Both $ATP$ and $NADPH$ are not essential for the assimilation of $CO_2$ to carbohydrates.

Radioactive $C^{14}$ is given to carbon dioxide and released into the atmosphere. This carbon dioxide is taken up by $RuBP$ in a $C_{3}$ plant. In which compound is the radioactive $C^{14}$ first observed?

Explain: Where are $ATP$ and $NADPH$ used?

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