Reproduction And Modification In Plants

Samacheer Book Back Questions And Answers For Science Standard 7 Term 1 “Reproduction And Modification In Plants“

I. Choose the appropriate answer:
1. Vegetative propagation by leaves takes place in
(a) Bryophyllum
(b) Fungi
(c) Virus
(d) Bacteria

2. Asexual reproduction in yeast is
(a) Spore formation
(b) Fragmentation
(c) Pollination
(d) Budding

3. Reproductive part of a plant is
(a) Root
(b) Stem
(c) Leaf
(d) Flower

4. Pollinators are
(a) Wind
(b) Water
(c) Insect
(d) All the above

5. Climbing roots are seen in
(a) Betel
(b) Black pepper
(c) Both of them
(d) None of them

II. Fill in the blanks:
1. The male reproductive part of a flower is _____.
2. _____ is the basal swollen part of the Gynoecium.
3. After fertilization the ovule becomes _____.
4. Breathing roots are seen in _____ plants.
5. Onion and Garlic are example of _____.

Answers:
1. Androecium
2. Ovary
3. Seed
4. Mangrove (Avicennia)
5. Bulb

III. True (or) False, write the correct answer for the false statement:
1. A complete flower has four whorls.
2. The transfer of pollen to the stigma is known as pollination.
3. Conical shaped root is carrot.
4. Ginger is an underground root.
5. Leaves of Aloe vera are fleshy and store water.

Answers:
1. True
2. True
3. True
4. False (Ginger is an underground stem)
5. True

IV. Match the following:
1. Petal                   A. Opuntia
2. Fern                    B. Chrysanthemum
3. Phylloclade         C. Attracts insect
4. Hooks                 D. Spore
5. Sucker                 E. Bignonia

Answers:
1. C
2. D
3. A
4. E
5. B

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