biology MCQs - 11th class Chapter 09 Mcqs

1

The system of classification that reflects the natural relationships and mode of origin among living organisms is called?

A

Artificial System

B

Phylogenetic System

C

Taxonomic System

D

Binomial System

2

Kingdom Plantae mainly includes organisms that are?

A

Prokaryotic and heterotrophic

B

Eukaryotic and autotrophic

C

Unicellular and motile

D

Prokaryotic and non-motile

3

The cell wall in plants is primarily composed of?

A

Chitin

B

Peptidoglycan

C

Cellulose

D

Lignin

4

Bryophytes are often called the 'amphibians of the plant world' because they?

A

Can live in both water and land

B

Are the first land plants

C

Need water for reproduction

D

Evolved from amphibians

5

Which of these is a characteristic of Bryophytes?

A

Presence of vascular tissues

B

Dominant sporophyte generation

C

Production of seeds

D

Dominant gametophyte generation

6

In Bryophytes, the sporophyte is typically?

A

Independent and free-living

B

Larger than the gametophyte

C

Partially or totally dependent on the gametophyte

D

Photosynthetic and dominant

7

The male sex organs in Bryophytes are called?

A

Archegonia

B

Antheridia

C

Sporangia

D

Oogonia

8

Bryophytes are homosporous, meaning they produce?

A

Two types of spores

B

Spores of different sizes

C

Only one kind of haploid spore

D

Spores by mitosis

9

Which subdivision of Bryophyta includes liverworts?

A

Hepaticopsida

B

Bryopsida

C

Anthoceropsida

D

Psilopsida

10

The gametophyte of mosses like Funaria develops from an alga-like structure called the?

A

Prothallus

B

Protonema

C

Rhizoid

D

Capsule

11

Which group of bryophytes has a sporophyte that can photosynthesize and has stomata?

A

Hepaticopsida (Liverworts)

B

Bryopsida (Mosses)

C

Anthoceropsida (Hornworts)

D

All Bryophytes

12

The dominant generation in the life cycle of Tracheophytes is the?

A

Gametophyte

B

Sporophyte

C

Protonema

D

Thallus

13

Which of the following is NOT a characteristic that enabled vascular plants to become predominant on land?

A

Root, stem, and leaves

B

A dominant gametophyte

C

Vascular systems (xylem and phloem)

D

Evolution of the seed

14

Which sub-division of Tracheophyta is considered the earliest group of vascular plants?

A

Lycopsida

B

Sphenopsida

C

Psilopsida

D

Pteropsida

15

A small leaf with a single, undivided vein, characteristic of Lycopods, is called a?

A

Megaphyll

B

Frond

C

Microphyll

D

Sporophyll

16

The evolutionary process where unequal dichotomies are arranged in one plane is termed?

A

Overtopping

B

Planation

C

Fusion

D

Webbing

17

The evolution of a megaphyll is thought to have completed in more than?

A

1-2 million years

B

5-10 million years

C

15-20 million years

D

50 million years

18

Selaginella is different from Lycopodium because it is?

A

Homosporous

B

Heterosporous

C

Non-vascular

D

Seed-producing

19

Plants in the Sphenopsida group, like Equisetum, are also called arthrophytes because their body is composed of?

A

Large leaves

B

A single main root

C

A large number of joints

D

Dichotomous branches

20

In ferns (Class Filicineae), the young, coiled leaves exhibit a pattern of development called?

A

Planation

B

Circinate vernation

C

Heterospory

D

Dichotomy

21

The gametophyte of a fern, such as Adiantum, is a small, heart-shaped structure called a?

A

Protonema

B

Rhizome

C

Prothallus

D

Sorus

22

One of the first critical steps in the evolution of the seed habit was the?

A

Evolution of homospory

B

Evolution of heterospory

C

Development of flowers

D

Formation of fruit

23

A fertilized ovule is technically defined as a?

A

Spore

B

Gametophyte

C

Seed

D

Zygote

24

The term 'Gymnospermae' literally means?

A

Enclosed seed

B

Naked seed

C

Flowering plant

D

Spore-bearing plant

25

In the life cycle of Pinus, pollen grains are transported primarily by?

A

Water

B

Insects

C

Wind

D

Animals

26

The ovary in Angiosperms develops into a?

A

Seed

B

Fruit

C

Flower

D

Gametophyte

27

Double fertilization is a characteristic feature of?

A

Bryophytes

B

Ferns

C

Gymnosperms

D

Angiosperms

28

In Angiosperms, the endosperm is typically?

A

Haploid (n)

B

Diploid (2n)

C

Triploid (3n)

D

Tetraploid (4n)

29

Plants with one cotyledon in their embryo are classified as?

A

Dicots

B

Gymnosperms

C

Monocots

D

Pteridophytes

30

Which characteristic is typical for Dicotyledonous plants?

A

Scattered vascular bundles

B

Flower parts in multiples of 3

C

Parallel leaf venation

D

Vascular bundles in a ring

31

To which family does the apple (Malus) belong?

A

Solanaceae

B

Fabaceae

C

Rosaceae

D

Poaceae

32

The use of rose petals to make 'gulkand' and 'Ark-Gulab' is an economic importance of which family?

A

Poaceae

B

Rosaceae

C

Mimosaceae

D

Solanaceae

33

Solanum tuberosum is the botanical name for?

A

Tomato

B

Tobacco

C

Potato

D

Red pepper

34

Which family is characterized by a compound pistil of 2 united carpels and an obliquely placed ovary?

A

Fabaceae

B

Rosaceae

C

Solanaceae

D

Poaceae

35

The family Fabaceae is of great importance as a source of?

A

Cereals

B

High-protein food (pulses)

C

Spices

D

Medicinal alkaloids

36

The fruit in the family Fabaceae is typically a?

A

Drupe

B

Berry

C

Legume or pod

D

Caryopsis

37

The dye 'Indigo' is obtained from a plant belonging to which family?

A

Caesalpiniaceae

B

Mimosaceae

C

Fabaceae

D

Rosaceae

38

Which family is commonly known as the 'Cassia Family'?

A

Mimosaceae

B

Caesalpiniaceae

C

Fabaceae

D

Solanaceae

39

The acidic fruit of Tamarindus indica is edible and rich in?

A

Citric acid

B

Ascorbic acid

C

Tartaric acid

D

Malic acid

40

Which family is characterized by flowers in a spike-like head or umbel, like in Acacia?

A

Poaceae

B

Caesalpiniaceae

C

Fabaceae

D

Mimosaceae

41

Arabic gum is obtained from which species?

A

Acacia nilotica

B

Albizzia lebbek

C

Prosopis cineraria

D

Mimosa pudica

42

The family Poaceae is also known by its traditional name?

A

Gramineae

B

Leguminosae

C

Cruciferae

D

Compositae

43

The fruit of the grass family (Poaceae) is a dry, indehiscent fruit called?

A

Achene

B

Nut

C

Samara

D

Caryopsis

44

Double fertilization results in the formation of a diploid zygote and a?

A

Haploid endosperm

B

Diploid endosperm

C

Triploid endosperm

D

Diploid embryo sac

45

In the life cycle of moss, the spore germinates to form a?

A

Gametophyte directly

B

Protonema

C

Sporophyte

D

Zygote

46

The female sex organ in Bryophytes that contains the egg is the?

A

Antheridium

B

Oogonium

C

Sporangium

D

Archegonium

47

Which of these is a non-vascular plant?

A

Fern

B

Pine

C

Moss

D

Rose

48

The leaves of ferns are called?

A

Microphylls

B

Scales

C

Fronds

D

Blades

49

In Pinus, the female cone is composed of woody scales called?

A

Microsporophylls

B

Megasporophylls

C

Bracts

D

Sepals

50

A flower is best described as a?

A

Modified root

B

Modified leaf

C

Modified shoot

D

Collection of spores