What is the usefulness of $Mg^{2+}$ in plants?
- AIt is a constituent of the ring structure of chlorophyll.
- BIt activates enzymes of respiration and photosynthesis.
- CIt is involved in the synthesis of $DNA$ and $RNA$.
- DAll of the above.
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Which is essential for the growth of root tip?
Which of the following is a component of the middle lamella?
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View Solution$Mg^{2+}$ is an activator of:
$I.$ Alcohol dehydrogenase
$II.$ Nitrogenase
$III.$ Ribulose bisphosphate carboxylase oxygenase
$IV.$ Phosphoenol pyruvate carboxylase
Choose the correct option.
$I.$ Alcohol dehydrogenase
$II.$ Nitrogenase
$III.$ Ribulose bisphosphate carboxylase oxygenase
$IV.$ Phosphoenol pyruvate carboxylase
Choose the correct option.
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View SolutionFor the growth of which of the following is sodium required?
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View SolutionAssertion $A$: Copper is essential for the synthesis of chlorophyll in plants.
Reason $R$: Magnesium is located at the central part of the chlorophyll structure.
Which option is correct for Assertion $A$ and Reason $R$?
Reason $R$: Magnesium is located at the central part of the chlorophyll structure.
Which option is correct for Assertion $A$ and Reason $R$?
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