6th Science NCERT Chapter 4
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Here are the important topics from the chapter "Getting to Know Plants" along with 1-2 lined summaries for each:
1. Herbs, Shrubs, and Trees:
– Summary: Plants can be classified into three categories based on characteristics like stem thickness and height: herbs, shrubs, and trees.
2. Stem:
– Summary: Stems serve as the main axis of a plant and can be classified based on their strength and growth habits into categories like climbers, creepers, shrubs, and more.
3. Leaf:
– Summary: Leaves play a vital role in photosynthesis and transpiration, and they vary in size, shape, and attachment to the stem. The leaf venation patterns, such as reticulate and parallel, are important features.
These topics cover the fundamental aspects of plant anatomy and classification discussed in the chapter "Getting to Know Plants"7.
What are the three categories into which most plants can be classified based on their characteristics?
Herbs, shrubs, and trees
What are some distinguishing characteristics of herbs, shrubs, and trees that help differentiate them?
Herbs have green and tender stems and are usually short with few branches; shrubs have hard but not very thick stems with branches near the base; trees are very tall with hard and thick stems and upper branches far off the ground.
What is the difference between creepers and climbers in terms of their stem characteristics?
Creepers have weak stems that spread on the ground and cannot stand upright, while climbers take support and climb upwards.
What is the process by which water moves up the stem of a plant and reaches its leaves?
The process by which water moves up the stem of a plant and reaches its leaves is called transpiration.
What are the parts of a leaf and how are they identified?
The parts of a leaf are the petiole (attachment to the stem) and the lamina (broad green part). Petioles are where leaves are attached to the stem. Lamina is the broad green part of a leaf.
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