The Question is from neet-botany plant-kingdom bryophyta, and it was created by the author B VENKAT

Question

The elaters of liverworts and the peristome teeth of mosses both contribute to:

B VENKAT · Accepted Answer

## CORE INFORMATION
✓ **Answer**: B
## CONCEPT FRAMEWORK
 **Primary Concept**: Spore dispersal mechanisms in bryophytes
 **Related Topics**: Liverwort structure, Moss structure, Bryophyte reproduction
 **Prerequisites**: Basic understanding of plant reproduction, spore dispersal
## SOLUTION PATHWAY
**Given Information**:
  The question asks about the function of elaters in liverworts and peristome teeth in mosses.
  Options: Water absorption, Spore dispersal, Gamete production, Anchoring the plant
**Method & Steps**:
 1. Understanding the function of elaters in liverworts.
  Reasoning: Elaters are hygroscopic structures found within the sporangium of liverworts. They respond to changes in humidity, twisting and untwisting to aid in the dispersal of spores.
  Formula/Rule: None
 2. Understanding the function of peristome teeth in mosses.
  Working: Peristome teeth are also hygroscopic structures found on the capsule of mosses.  They regulate the release of spores, opening and closing depending on humidity.
  Key Point: Both elaters and peristome teeth utilize changes in humidity to aid in spore dispersal.
 3. Comparing the functions and selecting the correct option.
  Result: Both elaters and peristome teeth primarily contribute to spore dispersal.
  Verification:  The functions of elaters and peristome teeth directly relate to the dissemination of spores, not water absorption, gamete production, or anchoring.
 ## OPTION ANALYSIS
A :x: Water absorption is not the primary function of either elaters or peristome teeth. Bryophytes absorb water through other structures.
B ✓: Spore dispersal is the primary function of both elaters and peristome teeth. Their hygroscopic nature facilitates the release and scattering of spores.
C :x: Gamete production occurs in the gametophyte generation, not in structures associated with spore dispersal.
D :x: Anchoring is the function of rhizoids, not elaters or peristome teeth.
 ## LEARNING AIDS
 **Common Mistakes**:
  1.Confusing the functions of elaters and peristome teeth with other structures in bryophytes: It's crucial to understand the specific roles of these structures in spore dispersal.
  2.Failing to recognize the hygroscopic nature of elaters and peristome teeth:  Understanding their response to humidity is key to grasping their function.
 **Quick Tips**:
  1.Remember the key role of elaters and peristome teeth in the bryophyte life cycle: they are crucial for successful spore dispersal.
  2.Associate 'hygroscopic' with 'moisture-sensitive' to remember how these structures work.

B VENKAT · Answer

Water absorption

B VENKAT · Answer

The correct Option is "Spore dispersal"

B VENKAT · Answer

Gamete production

B VENKAT · Answer

Anchoring the plant

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