Class 11 Biology - Chapter Morphology of Flowering Plants NCERT Solutions | How do the various leaf modifications he
How do the various leaf modifications help plants?
The main function of the leaves is to carry out the process of photosynthesis. However, in a few plants, leaves are modified to perform different functions.
(a) Tendrils: The leaves of a pea plant are modified into tendrils that help the plant in climbing.
(b) Spines: The leaves in cactus are modified into sharp spines that act as an organ of defense.
(c) Phyllode: The leaves of some Australian acacia are short-lived and soon replaced by flattened, green structures called phyllodes that arise from the petiole of the leaves. The petioles in these plants synthesize food.
(d) Pitcher: The leaves of the pitcher plant are modified into pitcher-like structures, which contain digestive juices and help in trapping and digesting insects.
More Questions From Class 11 Biology - Chapter Morphology of Flowering Plants
- Q:- Explain with suitable examples the different types of phyllotaxy?
- Q:- What is a flower? Describe the parts of a typical angiosperm flower?
- Q:- Write the floral formula of an actinomorphic bisexual, hypogynous flower with five united sepals, five free petals. Five free stamens and two united carpals with superior ovary and axile placentation.
- Q:- Describe the various types of placentations found in flowering plants.
- Q:- Describe the arrangement of floral members in relation to their insertion on thalamus?
- Q:- Define the term inflorescence. Explain the basis for the different types of inflorescence in flowering plants.
- Q:- Justify the following statements on the basis of external features (i) Underground parts of a plant are not always roots (ii) Flower is a modified shoot
- Q:- Define the following terms:
(a) Aestivation
(b) Placentation
(c) Actinomorphic
(d) Zygomorphic
(e) Superior ovary
(f) Perigynous flower
(g) Epipetalous Stamen - Q:- Describe modifications of stem with suitable examples
- Q:- What is meant by modification of root? What type of modification of root is found in the (a) Banyan tree (b) Turnip (c) Mangrove trees
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