1 What is reproduction?
- A) The production of new individuals from parents
- B) The process of seed germination
- C) The function of flowers in plants
- D) The growth of plants from seeds
Answer: A) The production of new individuals from parents
Explanation: Reproduction refers to the production of new individuals from their parents.
2 What are the vegetative parts of a plant?
- A) Flowers, fruits, and seeds
- B) Roots, stems, and leaves
- C) Buds, shoots, and axils
- D) Scars, eyes, and margins
Answer: B) Roots, stems, and leaves
Explanation: The vegetative parts of a plant include roots, stems, and leaves.
3 What is vegetative propagation?
- A) Reproduction through flowers
- B) Reproduction without the production of seeds
- C) Reproduction through seeds
- D) Reproduction through vegetative buds
Answer: B) Reproduction without the production of seeds
Explanation: Vegetative propagation is a type of asexual reproduction where new plants are produced without the production of seeds.
4 Which of the following plants can be grown using vegetative propagation?
- A) Mango and money plant
- B) Potato and ginger
- C) Bryophyllum and cacti
- D) Sweet potato and dahlia
Answer: B) Potato and ginger
Explanation: Potato and ginger are examples of plants that can be grown using vegetative propagation.
5 What is the advantage of plants produced by vegetative propagation?
- A) They bear flowers and fruits earlier
- B) They have characteristics of both parents
- C) They produce seeds as a result of sexual reproduction
- D) They take less time to grow from seeds
Answer: A) They bear flowers and fruits earlier
Explanation: Plants produced by vegetative propagation take less time to grow and bear flowers and fruits earlier than those produced from seeds.
6 What is budding?
- A) Reproduction through vegetative buds
- B) Reproduction through flower buds
- C) Reproduction through detached parts
- D) Reproduction through seeds
Answer: A) Reproduction through vegetative buds
Explanation: Budding is a form of asexual reproduction where new individuals arise as outgrowths from existing ones through vegetative buds.
7 Which organism reproduces through budding?
- A) Plants
- B) Yeast
- C) Animals
- D) Bacteria
Answer: B) Yeast
Explanation: Yeast, a single-celled organism, reproduces through budding.
8 How do plants produced by sexual reproduction differ from those produced by vegetative propagation?
- A) They have characteristics of both parents
- B) They grow faster and bear fruits earlier
- C) They require seeds for reproduction
- D) They are exact copies of the parent plant
Answer: A) They have characteristics of both parents
Explanation: Plants produced by sexual reproduction have characteristics of both parents, while those produced by vegetative propagation.
9 How do plants reproduce?
- A) By producing seeds
- B) By eating fruits
- C) By growing roots
- D) By flowering
Answer: A) By producing seeds
Explanation: Plants reproduce by producing seeds, as mentioned in the passage. Seeds germinate and form new plants.
10 What is the function of flowers in plants?
- A) Photosynthesis
- B) Reproduction
- C) Water absorption
- D) Nutrient storage What is vegetative propagation?
Answer: B) Reproduction
Explanation: Flowers perform the function of reproduction in plants, as mentioned in the passage.
11 How are plants produced in asexual reproduction?
- A) From seeds
- B) Through flowers
- C) Without seeds
- D) By vegetative buds
Answer: C) Without seeds
Explanation: In asexual reproduction, plants can give rise to new plants without the production of seeds, as mentioned in the passage.
12 What is a node in a plant?
- A) A flowering part
- B) A reproductive bud
- C) A part of the stem/branch where a leaf arises
- D) A swollen stem
Answer: C) A part of the stem/branch where a leaf arises
Explanation: A node is a part of the stem/branch where a leaf arises, as mentioned in the passage.
13 What can give rise to a new plant in the case of Bryophyllum?
- A) Flower buds
- B) Leaf buds
- C) Root buds
- D) Stem buds
Answer: B) Leaf buds
Explanation: Bryophyllum has buds in the margins of leaves that can give rise to new plants, as mentioned in the passage.
14 Which plant part can give rise to new plants in sweet potato and dahlia?
- A) Flowers
- B) Leaves
- C) Roots
- D) Fruits
Answer: C) Roots
Explanation: Roots of plants like sweet potato and dahlia can give rise to new plants, as mentioned in the passage.
15 Why do plants produced by vegetative propagation grow and bear flowers faster?
- A) They have more nutrients
- B) They receive more sunlight
- C) They are genetically modified
- D) They are exact copies of the parent plant
Answer: D) They are exact copies of the parent plant
Explanation: Plants produced by vegetative propagation are exact copies of the parent plant, and therefore, they grow and bear flowers faster, as mentioned in the passage.
16 What is the small bulb-like projection coming out from the yeast cell called?
- a) Spore
- b) Fragment
- c) Bud
- d) Alga
Answer: c) Bud
Explanation: The small bulb-like projection coming out from the yeast cell is called a bud.
17 How do yeast cells reproduce?
- a) Fragmentation
- b) Spore formation
- c) Budding
- d) Fertilization
Answer: c) Budding
Explanation: Yeast cells reproduce through budding, where a bud gradually grows, detaches from the parent cell, and forms a new yeast cell.
18 What is the process of algae multiplying rapidly by breaking up into fragments called?
- a) Fragmentation
- b) Budding
- c) Spore formation
- d) Fertilization
Answer: a) Fragmentation
Explanation: Algae multiply rapidly by fragmentation, where an alga breaks up into two or more fragments that grow into new individuals.
19 How do fungi on a bread piece grow and reproduce?
- a) Fragmentation
- b) Budding
- c) Spore formation
- d) Fertilization
Answer: c) Spore formation
Explanation: Fungi on a bread piece grow from spores, which are asexual reproductive bodies released into the air.
20 Which part of a flower is the female reproductive part?
- a) Stamen
- b) Anther
- c) Filament
- d) Pistil
Answer: d) Pistil
Explanation: The pistil is the female reproductive part of a flower.
21 Flowers that contain both stamens and pistil are called ________.
- a) Unisexual flowers
- b) Bisexual flowers
- c) Fragments
- d) Algae
Answer: b) Bisexual flowers
Explanation: Flowers with both stamens and pistil are called bisexual flowers.
22 Which part of a stamen contains pollen grains?
- a) Anther
- b) Filament
- c) Stigma
- d) Ovary
Answer: a) Anther
Explanation: The anther of a stamen contains pollen grains.
23 What does the ovary of a pistil contain?
- a) Pollen grains
- b) Ovules
- c) Stigma
- d) Style
Answer: b) Ovules
Explanation: The ovary of a pistil contains one or more ovules.
24 What is formed when a male and a female gamete fuse in sexual reproduction?
- a) Bud
- b) Fragment
- c) Zygote
- d) Spore
Answer: c) Zygote
Explanation: When a male and a female gamete fuse during sexual reproduction, a zygote is formed.
25 Which plants reproduce by means of spores?
- a) Yeast
- b) Algae
- c) Ferns
- d) Mustard
Answer: c) Ferns
Explanation: Plants such as moss and ferns reproduce by means of spores.
26 How are pollen grains usually dispersed?
- a) By insects
- b) By water
- c) By wind
- d) By animals
Answer: c) By wind
Explanation: Pollen grains can be carried by wind.
27 What is the process called when pollen lands on the stigma of the same flower?
- a) Self-pollination
- b) Cross-pollination
- c) Fertilization
- d) Dispersal
Answer: a) Self-pollination
Explanation: Self-pollination as the transfer of pollen to the stigma of the same flower.
28 How is fertilization defined?
- a) The fusion of male and female gametes
- b) The growth of the ovary into a fruit
- c) The development of an embryo
- d) The dispersal of seeds
Answer: a) The fusion of male and female gametes
Explanation: Fertilization is the process of fusion of male and female gametes.
29 What develops from the ovules after fertilization?
- a) Flowers
- b) Fruits
- c) Pollen grains
- d) Seeds
Answer: d) Seeds
Explanation: Seeds develop from the ovules after fertilization.
30 How are seeds and fruits dispersed?
- a) By wind, water, and animals
- b) By insects and birds
- c) By wind and water only
- d) By animals only
Answer: a) By wind, water, and animals
Explanation: Seeds and fruits are carried away by wind, water, and animals for dispersal.
31 Which type of reproduction involves the fusion of male and female gametes?
- a) Asexual reproduction
- b) Sexual reproduction
- c) Vegetative propagation
- d) Fragmentation
Answer: b) Sexual reproduction
Explanation: Sexual reproduction involves the fusion of male and female gametes.
32 What is the reproductive part of a plant called?
- a) Ovule
- b) Stigma
- c) Anther
- d) Flower
Answer: d) Flower
Explanation: The flower is the reproductive part of a plant.
33 What is the term used for the transfer of pollen grains from the anther to the stigma?
- a) Fertilization
- b) Dispersal
- c) Pollination
- d) Fragmentation
Answer: c) Pollination
Explanation: Pollination as the transfer of pollen grains from the anther to the stigma.
34 Which type of pollination occurs when pollen grains are transferred to the stigma of another flower of the same kind?
- a) Self-pollination
- b) Cross-pollination
- c) Wind pollination
- d) Insect pollination
Answer: b) Cross-pollination
Explanation: Cross-pollination occurs when pollen grains are transferred to the stigma of another flower of the same kind.
35 How is the fusion of male and female gametes referred to?
- a) Pollination
- b) Dispersal
- c) Fertilization
- d) Reproduction
Answer: c) Fertilization
Explanation: The fusion of male and female gametes is called fertilization.