Select the correct option representing the parts of nephron that respectively absorb (i).______ glucose, (ii)._____amino acids,
(iii).______inorganic ions `(Na^(+),K^(+),Cl^(-))` and (iv).____urea in maximum.

Options

A. `{:("(i)","(ii)","(iii)","(iv)"),("DCT","Descending limb of loop of Henle","DCT","DCT"):}`
B. `{:("(i)","(ii)","(iii)","(iv)"),("DCT","Descending limb of loop of Henle","PCT","DCT"):}`
C. `{:("(i)","(ii)","(iii)","(iv)"),("PCT","PCT","PCT","Ascending lib of loop of Henle"):}`
D. `{:("(i)","(ii)","(iii)","(iv)"),("PCT","DCT","DCT","Ascending limb of loop of Henle"):}`

Answer

To solve the question regarding the parts of the nephron that absorb glucose, amino acids, inorganic ions, and urea, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Function of Nephron Parts**:
- The nephron is the functional unit of the kidney and is responsible for filtering blood and reabsorbing essential substances.

2. **Glucose Absorption**:
- Glucose is primarily reabsorbed in the **Proximal Convoluted Tubule (PCT)**. This is where the majority of glucose reabsorption occurs through active transport mechanisms.

3. **Amino Acids Absorption**:
- Similar to glucose, amino acids are also reabsorbed in the **Proximal Convoluted Tubule (PCT)**. The reabsorption of amino acids occurs alongside glucose through specific transport proteins.

4. **Inorganic Ions Absorption**:
- Inorganic ions such as sodium (Na⁺), potassium (K⁺), and chloride (Cl⁻) are predominantly reabsorbed in the **Proximal Convoluted Tubule (PCT)**. Some reabsorption also occurs in other parts of the nephron, but the maximum occurs in the PCT.

5. **Urea Absorption**:
- Urea is reabsorbed mainly in the **Ascending Limb of the Loop of Henle**. This part of the nephron allows for the passive reabsorption of urea, contributing to the concentration of urine.

6. **Compile the Answers**:
- Therefore, the correct parts of the nephron that absorb the substances in maximum amounts are:
- (i) Glucose: **PCT**
- (ii) Amino Acids: **PCT**
- (iii) Inorganic Ions: **PCT**
- (iv) Urea: **Ascending Limb of Loop of Henle**

### Final Answer:
The correct option representing the parts of nephron that respectively absorb:
(i) Glucose: **PCT**,
(ii) Amino Acids: **PCT**,
(iii) Inorganic Ions: **PCT**,
(iv) Urea: **Ascending Limb of Loop of Henle**.