Explore topic-wise MCQs in Biology.

This section includes 210 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

101.

During spring, seasonal leaves from the branch of tree are fallen due to

A. Because duration of day decrease
B. Decrease in atmospheric temperature
C. Decrease in atmospheric pressure
D. Formation of separating layer
Answer» E.
102.

Potato tuber is not a modified root because

A. It is oval or sherical in shape
B. It is protacted by corky skin
C. It bears spirally arranged eyes which represent nodes
D. It stores starch as reserve food material
Answer» D. It stores starch as reserve food material
103.

Velamen present in orchid plant

A. For providing support
B. For the absorption of moisture from air
C. For the assimilation of Carbohydrate
D. For the exchange of gases
Answer» C. For the assimilation of Carbohydrate
104.

Pneumatophores are found in

A. Hydrilla
B. Phizophora
C. Water chestnut
D. Salvinia
Answer» C. Water chestnut
105.

The plant dye henna imparts orangered colour to skin and hairs due to its reaction with which of the following

A. Protein and amino acids
B. Lipids
C. Carbohydrates
D. Amino acids
Answer» B. Lipids
106.

Vivipary mean

A. Development of seed after fertilization
B. Germination of seed the stem
C. Germination of seed in fruit attached to parent plant
D. Organisation of many seed
Answer» D. Organisation of many seed
107.

Fertilization is a process in which

A. A male gamete fuse with egg cell
B. Transfer of pollen grains nuclei
C. Fusion of male gamete with polar
D. Formation of seed from ovule
Answer» B. Transfer of pollen grains nuclei
108.

Which of the following roots contain nitrogen fixing bacteria?

A. Assimilatory roots
B. Nodulated root
C. Naphiform root
D. Tuberous root
Answer» C. Naphiform root
109.

Why do you feel coal under a tree but not so under a tin shed on a sunny day

A. The greenneess of the tree gives the coal feeling
B. Photosynthesis absorbs heat
C. The leaves convert water vapour into water which is a heat absorbing process.
D. The leaves gives out water which vaporises absorbing some heat as latent heat.
Answer» E.
110.

Consider the following statements
1. Vascular system is absent
2. Reproductive organ are multicellular
Which of the following statements given above is /are correct

A. 1 Only
B. 2 Only
C. Both 1 and 2
D. neither 1 and 2
Answer» C. Both 1 and 2
111.

A Complete flower has

A. Androcieum and gynecium
B. Sepal and Petal
C. Both (a) and (b)
D. Androcium, gynecium and petal
Answer» D. Androcium, gynecium and petal
112.

Seed Which disperse through air

A. Dark in colour
B. Lighter in Weight
C. Heavy in weight
D. Round in shape
Answer» C. Heavy in weight
113.

The outermost whorl of

A. Bract
B. Epicalyx
C. Sepal
D. Petals
Answer» B. Epicalyx
114.

Which one of the following parts of the

A. Stem
B. Leaf
C. Stipule
D. Petioles
Answer» C. Stipule
115.

Which one of the following plant is preferred for

A. Wheat
B. Gram
C. Maize
D. Barley
Answer» C. Maize
116.

Which one of the following types of plants produces

A. Gymnosperms
B. Pteridophytes
C. Bryophytes
D. Angiosperms
Answer» C. Bryophytes
117.

Hypogeal germination

A. Pumpkin
B. Maize
C. Rhizophora
D. Beans
Answer» C. Rhizophora
118.

Most important food is produced in the form of

A. Root
B. Stem
C. Fruit
D. Leaf
Answer» D. Leaf
119.

Which is a modification of tap root?

A. Prop root
B. Stilt root
C. Pneumatophores
D. Assimilatory roots
Answer» D. Assimilatory roots
120.

Edible part of coconut

A. Pericarp
B. Endosperm
C. Seed coat
D. Complete seed
Answer» C. Seed coat
121.

Parthanogenesis

A. Grapes
B. Lichi
C. Apple
D. Mango
Answer» B. Lichi
122.

Transfer of pollengrain

A. Thalmus
B. Pollination
C. Fertilization
D. Germination
Answer» C. Fertilization
123.

Viviparity

A. Pineapple
B. Rhizophora
C. Rhizobium
D. Rhizoclonicum
Answer» C. Rhizobium
124.

Tap root commonly

A. Dicotyledons
B. Monocotyledons
C. Angiosperm
D. Grass
Answer» B. Monocotyledons
125.

Which one of the following is a fruit ?

A. Potato
B. Onion
C. Garlic
D. Chilly
Answer» E.
126.

Soft drinks such as

A. Caffein
B. Nicotine
C. Tannin
D. Renin
Answer» B. Nicotine
127.

Embryo

A. Flower
B. leaves
C. Seeds
D. Buds
E. ..
Answer» D. Buds
128.

The gas used for

A. Ether
B. Ammonia
C. Acetylene
D. Ethylene
Answer» E.
129.

Water is conducted in

A. Phloem tissue
B. Parenchyma tissue
C. Meristems
D. Xylem tissue
Answer» E.
130.

A plant that

A. Monoflory
B. Monocarpic
C. Polycarpic
D. Multicarpic
Answer» C. Polycarpic
131.

Plant which grow in

A. Xerophytes
B. Hydrophytes
C. Halophytes
D. Succulents
Answer» D. Succulents
132.

Fruit

A. Potato
B. Carrot
C. Pea-nut
D. Onion
Answer» D. Onion
133.

Edible part of Lichi

A. Fleshy Thaimus
B. Aril
C. Mesocarp
D. Cotyledon
Answer» C. Mesocarp
134.

Respiratory roots

A. Betel
B. Chestnut
C. Maiz
D. Rhizophora
Answer» E.
135.

Vegetative propagation

A. Banana
B. Sugarcane
C. Mango
D. Cotton
Answer» C. Mango
136.

Pollination takes

A. Zoophily
B. Anemophily
C. Entomphily
D. Malcophily
Answer» E.
137.

Bulb

A. Root
B. Stem
C. Leaf base
D. Petioles
Answer» D. Petioles
138.

Eye of potato

A. Apical buds
B. Axillary buds
C. Adventitious root
D. Extra axillary bud
Answer» C. Adventitious root
139.

The edible

A. Tunic
B. Reduced stem
C. Fleshy scales
D. Base of in floresence
Answer» D. Base of in floresence
140.

Development of fruit

A. Parthenogenesis
B. Parthenocarpy
C. Apomixis
D. Apogamy
Answer» C. Apomixis
141.

Hair

A. Seed hairs
B. Modified hairs of bract
C. Stigma
D. Style
Answer» E.
142.

Seed developes

A. Gynecium
B. Ovule
C. Ovary
D. Pollen grain
Answer» C. Ovary
143.

Plant which does not

A. Orchides
B. Gymnosperm
C. Angiosperm
D. Crytogamus
Answer» C. Angiosperm
144.

Coconut and mango grouped

A. Pome
B. Bery
C. Drup
D. Pepo
Answer» D. Pepo
145.

Edible part of Apple

A. Pericarp
B. Mesocarp
C. Endocarp
D. Fleshy thalmus
Answer» E.
146.

Grain of rice

A. Seed
B. Monocotylednous fruit
C. Dicotylednous fruit
D. Endosperm
Answer» C. Dicotylednous fruit
147.

Which of the following is grown in field by their plantlet

A. Maiz
B. Sorgum
C. Onion
D. Soyabean
Answer» D. Soyabean
148.

Which plant will lose its economic value if its fruits are produced by

A. Grapes
B. Pomegranate
C. Orange
D. Banana
Answer» C. Orange
149.

Pollen grain

A. Empryo
B. Male gametophyte
C. Spore mother cell
D. Female gametophyte
Answer» C. Spore mother cell
150.

Part of plant which is important for the

A. Fruit
B. Bud
C. Flower
D. Stem
Answer» D. Stem