The Question is from neet-botany , and it was created by the author D VINOD

Question

In a dorsiventral leaf, the location of the palisade parenchyma is:

D VINOD · Accepted Answer

## CORE INFORMATION
✓ **Answer**: A
## CONCEPT FRAMEWORK
 **Primary Concept**: Leaf Anatomy
 **Related Topics**: Plant Tissues, Photosynthesis
 **Prerequisites**: Basic understanding of plant cell types and leaf structure.
## SOLUTION PATHWAY
**Given Information**:
  Dorsiventral leaf (also known as bifacial leaf).
  Palisade parenchyma is a type of photosynthetic tissue.
**Method & Steps**:
 1. Understand the structure of a dorsiventral leaf.
  Reasoning: Dorsiventral leaves have distinct upper (adaxial) and lower (abaxial) surfaces.  They are adapted for efficient light capture.
  Formula/Rule: N/A
 2. Identify the location of palisade parenchyma.
  Working: Palisade parenchyma cells are elongated and tightly packed, located just beneath the upper epidermis (adaxial surface). This arrangement maximizes light absorption for photosynthesis.
  Key Point: The spongy mesophyll, with its loosely packed cells and air spaces, is located towards the lower (abaxial) surface.
 3. Select the correct option.
  Result: The palisade parenchyma is located towards the adaxial surface.
  Verification: This aligns with the typical structure of dorsiventral leaves and the function of palisade parenchyma in photosynthesis.
 ## OPTION ANALYSIS
A ✓: Towards the adaxial surface. This is the correct location of palisade parenchyma in a dorsiventral leaf.  The cells are closely packed and elongated to maximize light absorption for photosynthesis.
B :x: Towards the abaxial surface. The abaxial surface is where the spongy mesophyll is located, which has loosely packed cells and air spaces for gas exchange.
C :x: Scattered throughout the mesophyll. This is characteristic of isobilateral leaves, not dorsiventral leaves.
D :x: Absent in dorsiventral leaves. Palisade parenchyma is a key component of dorsiventral leaves.
 ## LEARNING AIDS
 **Common Mistakes**:
  1.Confusing the location of palisade and spongy mesophyll: Remember that palisade is towards the upper (adaxial) surface for maximum light absorption, while spongy mesophyll is towards the lower (abaxial) surface for gas exchange.
  2.Generalizing leaf structure: Not all leaves are dorsiventral; some are isobilateral with palisade parenchyma on both surfaces.
 **Quick Tips**:
  1.Visualize a cross-section of a typical leaf to remember the arrangement of tissues.
  2.Associate ‘palisade’ with ‘packed’ and ‘adaxial’ (upper) surface.

D VINOD · Answer

The correct Option is "Towards the adaxial surface"

D VINOD · Answer

Towards the abaxial surface

D VINOD · Answer

Scattered throughout the mesophyll

D VINOD · Answer

Absent in dorsiventral leaves

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