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[A]: The driving force for passive absor...

[A]: The driving force for passive absorption is non metabolic in origin.
[R]: The driving force for active absorption is energy derived from the metabolic pro- cesses.

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

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The correct Answer is:
### Step-by-Step Solution: 1. **Understanding Absorption**: Absorption in plants refers to the process by which nutrients and minerals are taken up by plant cells from the external environment. This process is essential for plant growth, development, and repair. 2. **Types of Absorption**: There are two main types of absorption: - **Passive Absorption**: This process occurs without the use of energy. It relies on the natural movement of molecules from an area of higher concentration to an area of lower concentration, a process known as diffusion. - **Active Absorption**: This process requires energy because it involves the movement of molecules against their concentration gradient, meaning from an area of lower concentration to an area of higher concentration. 3. **Driving Force for Passive Absorption**: The driving force for passive absorption is non-metabolic in origin. This means that it does not require energy derived from metabolic processes. Instead, it relies on the concentration gradient, where substances move from areas of high concentration to areas of low concentration naturally. 4. **Driving Force for Active Absorption**: The driving force for active absorption is metabolic in nature. This process requires energy, which is derived from metabolic processes in the plant, primarily in the form of ATP (adenosine triphosphate). ATP is generated through various metabolic pathways, including glycolysis and the Krebs cycle. 5. **Conclusion**: Both statements in the question are true: - The driving force for passive absorption is indeed non-metabolic. - The driving force for active absorption is energy derived from metabolic processes.
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When pinacol is treated with dilute H_(2)SO_(4) , a re-arangement reaction takes place which leads to the formation of a ketone. CH_(3)-underset(CH_(3))underset(|)overset(OH)overset(|)C-underset(CH_(3))underset(|)overset(OH)C-CH_(3)overset(H_(2)SO_(4))rarrCH_(3)-underset(CH_(3))underset(|)overset(O)overset(||)C-overset(CH_(3))overset(|)C-CH_(5) This reaction involves re-arrangement of carbocation Step 1: CH_(3)-underset(CH_(3))underset(|)overset(OH)overset(|)C-underset(CH_(3))overset(+)overset(OH_(2))overset(|)C-CH_(2)rarrCH_(3)-underset(CH_(3))underset(|)overset(OH)overset(|)C-underset(CH_(3))underset(|)overset(OH)overset(|)C-underset(CH_(3))underset(|)overset(+)C-CH_(3) Step 2: Carbocation rearrange by hydride, alkyl shift to get as stable as they can. Stability is the driving force for re-arrangement migration of bond may also oC Cur. Where by ring expansion and ring contraction takes place. The relief of strain can provide a powerful driving force for re-arrangement. What will be the product of following reaction R is:

TRUEMEN BIOLOGY ENGLISH-Plant Physiology -ASSERTION AND REASON
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