The Question is from neet-botany anatomy-of-flowering-plants xylem, and it was created by the author B VENKAT

Question

Gymnosperms lack which of the following structure?

B VENKAT · Accepted Answer

## CORE INFORMATION
✓ **Answer**: B
## CONCEPT FRAMEWORK
	**Primary Concept**: Plant Vascular Tissue
	**Related Topics**: Gymnosperms, Angiosperms, Xylem, Phloem
	**Prerequisites**: Plant anatomy and physiology
## SOLUTION PATHWAY
**Given Information**:
	Gymnosperms are a group of seed-producing plants that includes conifers, cycads, ginkgoes, and gnetophytes.
	The question asks which vascular structure gymnosperms *lack*.
**Method & Steps**:
	1. **Understand the vascular tissue**: Xylem and phloem are complex tissues that transport water, minerals, and sugars throughout the plant. Xylem conducts water and minerals from roots to shoots, while phloem transports sugars from leaves to other parts of the plant.
	2. **Xylem components**: Xylem tissue is composed of several cell types, including tracheids and vessel elements. Tracheids are elongated cells with pits that allow water to move between them. Vessel elements are wider and shorter than tracheids, and they are connected end-to-end to form vessels, which are more efficient at water transport.
	3. **Gymnosperm xylem**: Gymnosperms have tracheids in their xylem, but they generally *lack* vessel elements and thus vessels.
	Result: Gymnosperms lack vessels.
## OPTION ANALYSIS
[A] :x: Tracheids: Gymnosperms *possess* tracheids, which are a type of water-conducting cell in their xylem.
[B] ✓: Vessels: Gymnosperms generally *lack* vessels, which are more efficient water-conducting structures found in angiosperms.
[C] :x: Xylem: Gymnosperms have xylem tissue, which is essential for water and mineral transport.
[D] :x: Phloem: Gymnosperms have phloem tissue, which is essential for sugar transport.
## LEARNING AIDS
	**Common Mistakes**:
		1. Confusing tracheids and vessels: Tracheids are present in both gymnosperms and angiosperms, while vessels are generally only found in angiosperms.
		2. Overlooking the 'lack' in the question: The question asks what gymnosperms *lack*, not what they possess.
	**Quick Tips**:
		1. Remember that vessels are a key distinguishing feature between gymnosperms and angiosperms.
		2. Visualize the structure of xylem in gymnosperms and angiosperms to better understand the difference.

B VENKAT · Answer

Tracheids

B VENKAT · Answer

The correct Option is "Vessels"

B VENKAT · Answer

Xylem

B VENKAT · Answer

Phloem

NEET Botany Anatomy of Flowering Plants Xylem MCQs

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