biology MCQs - 10th class Chapter 05 Mcqs

1

The production of individuals of the same species is defined as what?

A

Growth

B

Metabolism

C

Reproduction

D

Homeostasis

2

Which of the following is NOT an essential life process for an individual organism?

A

Respiration

B

Reproduction

C

Digestion

D

Excretion

3

Asexual reproduction involves a simple cell division that produces an exact what of an organism?

A

Hybrid

B

Duplicate

C

Variation

D

Mutation

4

What does binary fission mean?

A

Division into three

B

Division into two

C

Fusion of two

D

Fusion of three

5

In which organisms does binary fission commonly occur?

A

Fungi and Plants

B

Prokaryotes and unicellular eukaryotes

C

Plants and Animals

D

Viruses and Fungi

6

In binary fission in bacteria, what is duplicated first?

A

Cell wall

B

Cytoplasm

C

DNA

D

Ribosomes

7

In unicellular eukaryotes, the nucleus divides by which process during binary fission?

A

Meiosis

B

Mitosis

C

Fragmentation

D

Budding

8

Some invertebrates, like planaria and many echinoderms, reproduce asexually through which method?

A

Budding

B

Spore formation

C

Binary fission

D

Parthenogenesis

9

What are the hard walls called that some unicellular organisms form around themselves under unfavourable conditions?

A

Spores

B

Buds

C

Cysts

D

Shells

10

The process where a single parent forms a number of daughter cells at the same time is known as?

A

Binary fission

B

Budding

C

Fragmentation

D

Multiple fission

11

In which organism does fragmentation occur when it spontaneously breaks up into 8 or 9 pieces?

A

Hydra

B

Yeast

C

Certain worms

D

Amoeba

12

Which unicellular fungus commonly reproduces by forming a small bud on one side of the cell?

A

Rhizopus

B

Penicillium

C

Yeast

D

Mushroom

13

In which animals does a small bud form on the side of the body by mitosis?

A

Fish and Frogs

B

Sponges, Hydra, and corals

C

Birds and Reptiles

D

Insects and Worms

14

In which organism do the buds not detach from the parent body, leading to the formation of big colonies?

A

Hydra

B

Yeast

C

Sponges

D

Corals

15

In fungi like Rhizopus, what are the thick-walled spore sacs called?

A

Sporangia

B

Conidia

C

Zoospores

D

Ascospores

16

Bacterial spores are formed inside bacterial cells and are therefore called what?

A

Exospores

B

Endospores

C

Zygospores

D

Aplanospores

17

The development of an unfertilized egg into a new offspring is known as what?

A

Gametogenesis

B

Fertilization

C

Parthenogenesis

D

Pollination

18

In honeybees, unfertilised eggs develop into which type of individuals by parthenogenesis?

A

Diploid females

B

Haploid males (drones)

C

Diploid males

D

Haploid females (workers)

19

When vegetative parts of plants like roots, stems, or leaves give rise to new plants, the process is called?

A

Sexual reproduction

B

Pollination

C

Germination

D

Vegetative propagation

20

Which of the following are short underground stems surrounded by thick, fleshy leaves?

A

Tubers

B

Rhizomes

C

Corms

D

Bulbs

21

Dasheen and garlic are examples of plants that reproduce by what?

A

Bulbs

B

Corms

C

Rhizomes

D

Tubers

22

What are the horizontal underground stems with scale leaves and nodes called?

A

Rhizomes

B

Tubers

C

Bulbs

D

Corms

23

Potatoes reproduce by stem tubers, which have aggregations of tiny buds called what?

A

Nodes

B

Eyes

C

Scales

D

Roots

24

Which method of vegetative propagation is common in Mint and Chrysanthemum?

A

Bulbs

B

Tubers

C

Suckers

D

Leaves

25

The plant Bryophyllum reproduces vegetatively through which part?

A

Stem

B

Root

C

Flower

D

Leaves

26

In which artificial vegetative propagation method is a piece of stem attached to another plant with an established root system?

A

Cutting

B

Layering

C

Grafting

D

Tissue culture

27

The latest method of vegetative propagation, producing identical offspring from a single parent's tissue, is called?

A

Grafting

B

Cloning

C

Cutting

D

Layering

28

In tissue culture, tissue cells start mitosis and produce masses of cells called what?

A

Embryos

B

Calluses

C

Plantlets

D

Seedlings

29

Which plant groups require water for sexual reproduction because their sperms are motile?

A

Gymnosperms and Angiosperms

B

Mosses and ferns

C

Only Angiosperms

D

Only Gymnosperms

30

In the life cycle of plants, the diploid generation that produces spores is called the?

A

Gametophyte

B

Sporophyte

C

Zygote

D

Embryo

31

The phenomenon in which two different generations alternate with each other during a life cycle is known as?

A

Metamorphosis

B

Parthenogenesis

C

Alternation of generations

D

Polymorphism

32

In most plants, which generation is dominant, big in size, and independent?

A

Gametophyte

B

Sporophyte

C

Haploid generation

D

Spore generation

33

In flowering plants, which two whorls are considered the reproductive whorls?

A

Calyx and Corolla

B

Sepals and Petals

C

Androecium and Gynoecium

D

Stamen and Style

34

The male reproductive part of a flower is the androecium, and its units are called?

A

Carpels

B

Petals

C

Sepals

D

Stamens

35

In which part of the stamen are haploid microspores (pollen grains) produced?

A

Filament

B

Anther

C

Stigma

D

Ovary

36

The female reproductive part of a flower is the gynoecium, and its units are called?

A

Stamens

B

Petals

C

Sepals

D

Carpels

37

The process involving two fusions in flowering plants is called?

A

Pollination

B

Germination

C

Double fertilization

D

Parthenocarpy

38

After fertilization in a flowering plant, the ovule becomes the what?

A

Fruit

B

Seed

C

Embryo

D

Flower

39

The transfer of pollen grains from a flower's anther to its stigma is called what?

A

Fertilization

B

Germination

C

Pollination

D

Dispersal

40

Cross pollination is brought about by agencies like?

A

Wind, water, and animals

B

Only wind

C

Only water

D

Only insects

41

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

A

Parthenogenesis

B

Parthenocarpy

C

Apomixis

D

Polyembryony

42

The embryo in a seed consists of a radicle, a plumule, and one or two what?

A

Seed coats

B

Endosperms

C

Cotyledons

D

Hilums

43

In an embryo, what develops into the new root?

A

Plumule

B

Radicle

C

Epicotyl

D

Hypocotyl

44

In which type of germination does the hypocotyl elongate and pull the cotyledons above ground?

A

Hypogeal

B

Epigeal

C

Subterranean

D

Aerial

45

Which of the following are the most important external conditions for seed germination?

A

Light, soil, and nutrients

B

Water, oxygen, and favourable temperatures

C

Carbon dioxide, water, and light

D

Soil, minerals, and humidity

46

The formation of gametes in specialized organs called gonads is known as?

A

Gametogenesis

B

Fertilization

C

Embryogenesis

D

Oogenesis

47

In spermatogenesis, one primary spermatocyte produces how many haploid spermatids?

A

One

B

Two

C

Three

D

Four

48

In oogenesis, meiosis-I in a primary oocyte produces a secondary oocyte and a what?

A

Egg cell

B

Second polar body

C

First polar body

D

Oogonium

49

In rabbits, the male gonads (testes) are located in a bag of skin called the?

A

Epididymis

B

Scrotum

C

Prostate

D

Urethra

50

AIDS is caused by which virus?

A

Influenza Virus

B

Hepatitis Virus

C

Human Immunodeficiency Virus (HIV)

D

Ebola Virus