biology MCQs - 9th class Chapter 10 Mcqs

1

Which process involves the fusion of male and female gametes?

A

Asexual reproduction

B

Sexual reproduction

C

Budding

D

Binary fission

2

What is the method of reproduction in bacteria?

A

Budding

B

Spore formation

C

Binary fission

D

Grafting

3

In protists like Amoeba, what divides first during binary fission?

A

Cytoplasm

B

Cell membrane

C

Nucleus

D

Cell wall

4

Yeast, a unicellular fungus, commonly reproduces by which method?

A

Binary fission

B

Spore formation

C

Budding

D

Fragmentation

5

What are the thick-walled asexual reproductive cells produced by fungi like Rhizopus called?

A

Gametes

B

Zygotes

C

Spores

D

Buds

6

What is the sac-like structure in which Rhizopus produces spores?

A

Sporangium

B

Anther

C

Ovary

D

Bud

7

Bacteria form which structures to survive unfavourable environmental conditions?

A

Zygotes

B

Gametes

C

Endospores

D

Buds

8

What is the type of asexual reproduction where a new plant is produced from a root, stem, or leaf?

A

Spore formation

B

Grafting

C

Vegetative propagation

D

Sexual reproduction

9

Which of the following is a horizontal stem that grows above the ground and is used for reproduction by strawberry plants?

A

Rhizome

B

Tuber

C

Stolon

D

Bulb

10

A fleshy underground stem with 'eyes' that can grow into new plants, as seen in potatoes, is called a?

A

Rhizome

B

Bulb

C

Corm

D

Tuber

11

Ginger and ferns reproduce using a horizontal stem that grows below the ground called a?

A

Stolon

B

Tuber

C

Rhizome

D

Bulb

12

Onions and tulips reproduce by using which underground structure?

A

Tuber

B

Bulb

C

Corm

D

Rhizome

13

Which structure is a new shoot that emerges from the base of a parent plant, like a banana tree?

A

Stolon

B

Tuber

C

Sucker

D

Rhizome

14

Which plant can reproduce vegetatively through buds on its leaf margins?

A

Rose

B

Bryophyllum

C

Potato

D

Ginger

15

The method of joining a bud of one plant to the stem of another to combine their characteristics is called?

A

Cutting

B

Layering

C

Grafting

D

Budding

16

What is the main disadvantage of vegetative propagation?

A

It is a slow process

B

Offspring have genetic differences

C

Offspring are sensitive to the same diseases

D

It requires two parent plants

17

The diploid (2n) generation in a plant's life cycle that produces spores is called?

A

Gametophyte

B

Sporophyte

C

Zygote

D

Embryo

18

The haploid (1n) generation in a plant's life cycle that produces gametes is called?

A

Gametophyte

B

Sporophyte

C

Zygote

D

Embryo

19

In angiosperms, what are the organs for sexual reproduction?

A

Roots

B

Stems

C

Leaves

D

Flowers

20

What is the outermost whorl of a flower, made of green leaf-like sepals?

A

Corolla

B

Calyx

C

Androecium

D

Gynoecium

21

The male reproductive structures in a flower are called?

A

Carpels

B

Petals

C

Sepals

D

Stamens

22

The innermost whorl of a flower, made of female reproductive structures, is the?

A

Androecium

B

Calyx

C

Corolla

D

Gynoecium

23

What part of the stamen produces pollen grains?

A

Filament

B

Stigma

C

Anther

D

Style

24

Which part of the carpel is the enlarged base where ovules are produced?

A

Stigma

B

Style

C

Ovary

D

Filament

25

What is the structure that contains the female gametophyte or embryo sac?

A

Pollen grain

B

Anther

C

Ovule

D

Petal

26

A diploid megaspore mother cell undergoes meiosis to produce how many haploid megaspores?

A

One

B

Two

C

Three

D

Four

27

The mature male gametophyte in an angiosperm is the?

A

Embryo sac

B

Pollen grain

C

Ovule

D

Sperm

28

The generative cell in a pollen grain divides to form how many sperms?

A

One

B

Two

C

Three

D

Four

29

What is the transfer of pollen grains from an anther to a stigma called?

A

Fertilization

B

Germination

C

Pollination

D

Dispersion

30

The transfer of pollen to the stigma of the same flower is called?

A

Cross-pollination

B

Self-pollination

C

Double fertilization

D

Vegetative propagation

31

What does the tube cell of a pollen grain form after reaching the stigma?

A

Sperm

B

Egg cell

C

Pollen tube

D

Zygote

32

The fusion of one sperm with the egg and the other with the fusion nucleus is called?

A

Pollination

B

Germination

C

Parthenocarpy

D

Double fertilization

33

What does the second sperm fuse with during double fertilization?

A

Egg cell

B

Synergid cell

C

Fusion nucleus

D

Antipodal cell

34

The fusion of the second sperm with the fusion nucleus results in a triploid (3n) tissue called?

A

Embryo

B

Zygote

C

Endosperm

D

Seed coat

35

After fertilization, the ovule develops into a?

A

Fruit

B

Seed

C

Flower

D

Sporophyte

36

After fertilization, the ovary develops into a?

A

Fruit

B

Seed

C

Flower

D

Gametophyte

37

The development of fruit without fertilization, resulting in seedless fruits, is known as?

A

Parthenogenesis

B

Parthenocarpy

C

Apomixis

D

Grafting

38

Which of the following is an example of a seedless fruit produced by parthenocarpy?

A

Apple

B

Orange

C

Banana

D

Mango

39

Protists like Euglena reproduce by which asexual method?

A

Budding

B

Binary fission

C

Spore formation

D

Fragmentation

40

Hydra, an animal, reproduces asexually by which method?

A

Binary fission

B

Budding

C

Spore formation

D

Grafting

41

Sweet potato is grown from which type of cuttings?

A

Stem cuttings

B

Leaf cuttings

C

Root cuttings

D

Flower cuttings

42

Which of the following is NOT part of the carpel?

A

Stigma

B

Style

C

Ovary

D

Filament

43

The sporophyte generation is diploid (2n) and produces haploid (1n) spores by which process?

A

Mitosis

B

Meiosis

C

Fertilization

D

Budding

44

The gametophyte generation produces haploid gametes by which process?

A

Mitosis

B

Meiosis

C

Fission

D

Fusion

45

In the embryo sac, how many nuclei migrate to the center to form a fusion nucleus?

A

One

B

Two

C

Three

D

Four

46

Which part of a flower serves as the base that supports the entire structure?

A

Petal

B

Sepal

C

Receptacle

D

Stamen

47

What is the stalk-like part of the stamen that supports the anther?

A

Style

B

Filament

C

Stigma

D

Ovary

48

Dasheen and garlic reproduce by which underground structure?

A

Tuber

B

Bulb

C

Rhizome

D

Corm

49

Planarians can reproduce asexually by which method?

A

Budding

B

Binary fission

C

Spore formation

D

Grafting

50

The male gametophyte is also known as the?

A

Embryo sac

B

Ovule

C

Pollen grain

D

Anther