PLANT REPRODUCTION-A

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Q1. A new plant that grows from a seed is an example of: 5th Science
Seeds are formed when a male part (pollen) joins with a female part (ovule). This is called sexual reproduction because two parents (or two parts of the same flower) are involved.

Q2. When a new plant grows from a stem, root, or leaf of the mother plant without using a seed, it is called: 5th Science
Vegetative reproduction is a type of asexual reproduction where a new plant grows from a part of the parent plant like stem, root, or leaf.

Q3. The main difference between sexual and asexual reproduction is: 5th Science
In sexual reproduction, male and female cells join. In asexual reproduction (like vegetative reproduction), one parent produces offspring that are exactly like itself.

Q4. The original plant from which a new plant is grown is called the: 5th Science
The mother plant is the parent plant. A cutting or part taken from it grows into a new plant that is identical to the mother plant.

Q5. A potato grows into a new plant from its: 5th Science
A potato is a modified stem. The “eyes” on a potato are buds. Each bud can grow into a new potato plant. This is vegetative reproduction through stems.

Q6. Which part of a ginger plant is used to grow a new plant? 5th Science
Ginger has an underground stem called a rhizome. It has buds. When you plant a piece of ginger with a bud, a new plant grows.

Q7. Onion grows into a new plant from its: 5th Science
An onion bulb is a short stem with fleshy leaves. The bulb has buds that grow into new onion plants. This is vegetative reproduction.

Q8. Sweet potato is a modified root. How does it reproduce? 5th Science
Sweet potato roots have buds. When planted, these buds sprout and grow into new plants. This is vegetative reproduction through roots.

Q9. Which plant can grow a new plant from its leaves? 5th Science
Bryophyllum leaves have tiny buds growing along the edges. These buds fall off, fall on soil, and grow into new plants. This is vegetative reproduction through leaves.

Q10. In Bryophyllum, where do the baby plants grow? 5th Science
Look at a Bryophyllum leaf. You will see small plantlets (baby plants) growing along the leaf margin (edge). Each can become a new plant.

Q11. Grass spreads quickly in a garden by using: 5th Science
Grass sends out horizontal stems called runners. At certain points (nodes), new roots and shoots grow, forming new grass plants.

Q12. Which of the following is an example of vegetative reproduction through stems? 5th Science
Potato (tuber) and ginger (rhizome) are both modified stems. Sweet potato is a modified root, and Bryophyllum reproduces through leaves.

Q13. Seeds are formed when pollen from the male part reaches the female part of a flower. This process is called: 5th Science
Pollination is the first step of sexual reproduction in plants. After pollination, the flower makes seeds. Seeds grow into new plants.

Q14. A new plant grown from a cutting of a rose stem will look like: 5th Science
In vegetative reproduction, the new plant is a clone (exact copy) of the mother plant because it comes from one parent only.

Q15. Which of these is NOT a part of vegetative reproduction? 5th Science
Vegetative reproduction does not involve seeds. It uses stems, roots, or leaves. Seeds are part of sexual reproduction.

Q16. A farmer wants to grow many rose plants that are exactly like a special rose bush. Which method should he use? 5th Science
Stem cuttings grow into exact copies of the mother plant. Seeds would produce plants that may be different from the mother plant.

Q17. Which part of the mother plant is used to grow a new sugarcane plant? 5th Science
Farmers cut a piece of sugarcane stem with buds and plant it in soil. Each bud grows into a new sugarcane plant.

Q18. In sexual reproduction, the baby plant is: 5th Science
In sexual reproduction, the new plant gets features from both male and female parents. It is not an exact copy of one parent.

Q19. Which of the following reproduces through roots? 5th Science
Sweet potato is a root that grows buds. When planted, each bud grows into a new plant. Potato, ginger, and onion are stems, not roots.

Q20. One advantage of vegetative reproduction is: 5th Science
Vegetative reproduction gives a bigger, stronger plant quickly because it does not have to wait for a seed to germinate. The new plant is also identical to the mother plant

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