The Question is from neet-botany anatomy-of-flowering-plants dicot-leaf, and it was created by the author K SURESH KUMAR

Question

Which tissue is responsible for the majority of photosynthesis in a dicot leaf?

K SURESH KUMAR · Accepted Answer

## CORE INFORMATION
✓ **Answer**: D
## CONCEPT FRAMEWORK
 **Primary Concept**: Plant Anatomy and Photosynthesis
 **Related Topics**: Leaf structure, mesophyll cells, chloroplasts
 **Prerequisites**: Understanding of the basic structure of a dicot leaf and the role of chloroplasts in photosynthesis.
## SOLUTION PATHWAY
**Given Information**:
  The question asks about the primary tissue responsible for photosynthesis in a dicot leaf.
  We need to consider the different tissues present in a leaf and their functions.
**Method & Steps**:
 1. Identify the tissues present in a dicot leaf: epidermis, palisade mesophyll, spongy mesophyll, and vascular bundles.
  Reasoning: Dicot leaves have a distinct arrangement of tissues optimized for photosynthesis and gas exchange.
  Formula/Rule: None directly applicable.
 2. Determine the function of each tissue:
  Epidermis: Protection; Spongy mesophyll: Gas exchange; Vascular bundles: Transport; Palisade mesophyll: Photosynthesis (main).
  Working: The palisade mesophyll is located beneath the upper epidermis and is densely packed with chloroplasts, the organelles responsible for photosynthesis.
  Key Point:  Chloroplast concentration is crucial for efficient light capture and photosynthetic activity.
 3. Conclude which tissue is primarily responsible for photosynthesis.
  Result: Palisade mesophyll is responsible for the majority of photosynthesis in a dicot leaf.
  Verification: The arrangement of the palisade mesophyll, with its high chloroplast density and location for optimal light absorption, supports this conclusion.
 ## OPTION ANALYSIS
A :x: Spongy mesophyll primarily facilitates gas exchange, not photosynthesis, although some photosynthesis may occur.
B :x: The epidermis is a protective outer layer, lacking the chloroplasts necessary for photosynthesis.
C :x: Vascular bundles transport water and nutrients but are not involved directly in photosynthesis.
D ✓: Palisade mesophyll cells contain a high concentration of chloroplasts, making them the primary site of photosynthesis in dicot leaves.
 ## LEARNING AIDS
 **Common Mistakes**:
  1.Confusing the roles of spongy and palisade mesophyll: Remember that palisade mesophyll is the primary photosynthetic tissue due to its high chloroplast concentration.
  2.Overlooking the importance of chloroplast location: The position of the palisade mesophyll, directly beneath the upper epidermis, maximizes light absorption.
 **Quick Tips**:
  1.Visualize a cross-section of a dicot leaf to easily recall the location and arrangement of tissues.
  2.Remember the key function of each tissue: epidermis (protection), mesophyll (photosynthesis and gas exchange), vascular bundles (transport).

K SURESH KUMAR · Answer

Spongy mesophyll

K SURESH KUMAR · Answer

Epidermis

K SURESH KUMAR · Answer

Vascular bundles

K SURESH KUMAR · Answer

The correct Option is "Palisade mesophyll"

NEET Botany Anatomy of Flowering Plants Dicot Leaf MCQs

Select Topic

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

Question Tags

NEET Subjects

Our Bots

Company