Which of the following do not show Kranz anatomy in their leaves ?

Options

A. Maize
B. Ssorghum
C. China rose
D. Both (1) & (2)

Answer

To solve the question "Which of the following do not show Kranz anatomy in their leaves?", we can follow these steps:

### Step 1: Understand Kranz Anatomy
Kranz anatomy is a specialized leaf structure found in C4 plants. It is an adaptation that helps these plants minimize photorespiration by efficiently fixing carbon dioxide. This structure is characterized by the arrangement of mesophyll and bundle sheath cells.

**Hint:** Remember that Kranz anatomy is specifically associated with C4 plants.

### Step 2: Identify C4 Plants
C4 plants typically include species like maize (corn), sugarcane, and sorghum. These plants are adapted to hot, dry environments and have evolved this anatomical feature to enhance photosynthesis.

**Hint:** Think of common examples of C4 plants when identifying them.

### Step 3: Analyze the Options
Now, we need to look at the options provided in the question:
1. Maize
2. Sorghum
3. China Rose
4. Both A and B

From our understanding, maize and sorghum are both C4 plants and exhibit Kranz anatomy.

**Hint:** Consider which of the listed plants are known to be C4 plants.

### Step 4: Determine the Non-C4 Plant
China Rose (Hibiscus rosa-sinensis) is a C3 plant and does not exhibit Kranz anatomy. C3 plants do not have the specialized structures that C4 plants do, as they do not require the same adaptations to minimize photorespiration.

**Hint:** Recall the difference between C3 and C4 plants regarding their photosynthetic pathways.

### Step 5: Conclusion
Based on the analysis, the correct answer to the question is that China Rose does not show Kranz anatomy in its leaves.

**Final Answer:** China Rose