If you are looking for Tamil Nadu Board Class 7 Science Chapter 5 Reproduction and Modification in Plants then you are at the right place. Here we are providing solutions as well as additional QA / Important Notes.
[I] Choose the appropriate answer.
Vegetative propagation by leaves takes place in
- Bryophyllum
- Virus
- Fungi
- Bacteria
Asexual reproduction in yeast is
- Spore formation
- Pollination
- Fragmentation
- Budding
Reproductive part of a plant is
- Root
- Stem
- Leaf
- Flower
Pollinators are
- Wind
- Water
- Insect
- All the above
Climbing roots are seen in
- Betel
- Black pepper
- Both of them
- None of them
[II] Fill in the blanks.
- The male reproductive part of a flower is___________[androecium]
- ______is the basal swollen part of the gynoecium.[Ovary]
- After fertilization the ovule becomes__________[seed]
- Breathing roots are seen in _________plants.[mangrove]
- Onion and garlic are example for ___________[bulbs]
[III] State true or false. If false, correct the statement.
- A complete flower has four whorls.[True]
- The transfer of pollen to the stigma is known as pollination.[True]
- Conical shaped root is carrot.[True]
- Ginger is an underground root.[False – it is underground stem]
- Leaves of Aloe vera are fleshy and store water.[True]
[IV] Match the following
- Petal – Opuntia
- Fern – Chrysanthemum
- Phylloclade – Attracts insect
- Hooks – Spore
- Sucker – Bignonia
Match the following – Answers
- Petal – Attracts insect
- Fern – Spore
- Phylloclade – Opuntia
- Hooks – Bignonia
- Sucker – Chrysanthemum
[V] Answer very briefly.
Write two types of reproduction in plants.
Sexual reproduction and asexual reproduction.
What are the two important parts of a flower?
Androecium (male reproductive part) and gynoecium (female reproductive part).
Define – Pollination.
Pollination is the transfer of pollen grains from the anther to the stigma of a flower.
What are the agents of pollination?
Wind, water, insects, and animals.
Give example for Corm and Tuber
Corm: Colocasia
Tuber: Potato
What is tendril?
A tendril is a modified leaf, stem, or petiole that helps a plant to climb by attaching to and winding around a support.
