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Q1. The process in which new plants are produced from roots, stems, or leaves of an existing plant is called: 5th Science
In vegetative reproduction, new plants grow from plant parts like roots, stems, or leaves without using seeds.
Q2. Which part of a potato plant is used to grow a new potato plant? 5th Science
A potato is a modified stem with “eyes” (buds). Each eye can sprout and grow into a new plant.
Q3. Bryophyllum (Kalanchoe) is a famous example of reproduction through: 5th Science
Bryophyllum leaves have small buds along their edges that fall off and grow into new plants.
Q4. Sweet potato is a modified root used for vegetative reproduction. The new plant grows from: 5th Science
Sweet potato roots have buds (eyes) that sprout into shoots and form new plants.
Q5. Which of the following is NOT a way that seeds are dispersed (spread) in nature? 5th Science
Seeds are dispersed by wind, water, animals, and explosion, but cooking destroys seeds.
Q6. A seed needs all of the following to germinate EXCEPT: 5th Science
Seeds can germinate in darkness using stored food; sunlight is only needed for the young plant to grow leaves.
Q7. Which plant reproduces through its stem (runner)? 5th Science
Grass spreads by horizontal stems called runners that grow along the ground and form new plants at nodes.
Q8. The part of a seed that grows into a new plant is called the: 5th Science
The embryo is the tiny baby plant inside the seed. It grows into a new plant when conditions are right.
Q9. Ginger is a stem that grows underground. How does it reproduce? 5th Science
Ginger has an underground stem called a rhizome with buds. Each piece with a bud can grow into a new plant.
Q10. Which of the following reproduces through roots? 5th Science
Sweet potato is a modified root that produces buds, which grow into new plants.
Q11. In a seed, the cotyledons (seed leaves) provide: 5th Science
Cotyledons store starch, proteins, or oils to feed the baby plant until it can make its own food.
Q12. Onion reproduces mainly through which part? 5th Science
An onion bulb is a short underground stem with fleshy leaves. It has buds that grow into new onion plants.
Q13. A mango seed is dispersed by: 5th Science
Animals eat the mango fruit and drop or throw away the large seed. Humans also plant mango seeds.
Q14. Which is an example of a plant that reproduces through leaf? 5th Science
On Bryophyllum leaves, tiny plantlets grow along the leaf edge, fall off, and become new plants.
Q15. The process in which a seed breaks open and a baby plant comes out is called: 5th Science
Germination starts when a seed absorbs water, swells, breaks its seed coat, and the root and shoot emerge.
Q16. Which plant part is used to grow a new rose plant in gardening? 5th Science
A piece of rose stem with buds is planted in soil; it develops roots and grows into a new rose plant.
Q17. The tiny pores on a leaf that help in exchange of gases are called: 5th Science
Stomata are small openings on leaves that take in carbon dioxide and release oxygen and water vapor.
Q18. Which of the following reproduces by underground stem called rhizome? 5th Science
Turmeric grows from a rhizome (underground stem) that has nodes and buds, similar to ginger.
Q19. A seed will NOT germinate if: 5th Science
Water activates enzymes in the seed to start growth. Without water, the seed remains dormant.
Q20. Dahlia and asparagus can be grown by planting which part? 5th Science
Dahlia and asparagus have swollen roots that store food and bear buds, which sprout into new plants.
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