Explore topic-wise MCQs in Biology.

This section includes 1075 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

101.

______ is a hormone that regulates the amount of glucose in the blood

A. Glucogen
B. Thyroxine
C. Oxytocin
D. Insulin
Answer» E.
102.

Who proposed Five Kingdom Classification ?

A. R.H. Whittaker
B. John Ray
C. Carolus Linnaeus
D. H.F. Copeland
Answer» B. John Ray
103.

Haematopoiesis take place in

A. Lungs
B. Pancreas
C. Liver
D. Bone marrow
Answer» E.
104.

Who proposed Binomial Nomenclature ?

A. Linnaeus
B. John Ray
C. Huxley
D. Aristotle
Answer» B. John Ray
105.

The International Commisson on Zoological Nomenclature was established in

A. 1898
B. 1988
C. 2001
D. 1664
E. None of these
Answer» F.
106.

The largest cells in mammalian blood are

A. Erythrocytes
B. Monocytes
C. Basophils
D. Lymphocytes
Answer» C. Basophils
107.

Carolus Linnaeus System of classification is

A. Natural
B. Artificial
C. Binomial
D. Phylogenetic
Answer» D. Phylogenetic
108.

Which of the following fibres is considered as the strongest natural fibre?

A. Cotton
B. Jute
C. Wool
D. Silk
Answer» E.
109.

Which of the digestive organs contains acid?

A. Stomach
B. Small intestine
C. Appendix
D. Colon
Answer» C. Appendix
110.

Which fruit has its seed outside ?

A. Strawberry
B. Banana
C. Groundnut
D. Cashew nut
Answer» B. Banana
111.

How many neck canal cells are found in the archegonium of a fern ?

A. One
B. Two
C. Three
D. Four
Answer» B. Two
112.

What is commonly known as white plague ?

A. Typhoid
B. Malaria
C. Tuberculosis
D. Plague
Answer» D. Plague
113.

The oilseed which is not edible

A. Sunflower
B. Cottonseed
C. Sesamum
D. Groundnut
Answer» C. Sesamum
114.

Which angiosperm is vessel-less ?

A. Hydrilla
B. Trochodendron
C. Maize
D. Wheat
Answer» C. Maize
115.

Gustation refers to the sense of which of the following ?

A. Smell
B. Hearing
C. Tactile
D. Taste
Answer» E.
116.

The smallest known prokaryotic organism is

A. Microcystis
B. Mycoplasma
C. Bacteria
D. Chlorella
Answer» C. Bacteria
117.

Who was the first child born after operative procedure ?

A. Caesar
B. Huxley
C. William
D. Pasteur
Answer» B. Huxley
118.

The virus of AIDS affects the growth of _________

A. Haemoglobin
B. RBCs in blood
C. T cells in blood
D. Grey cells in brain
Answer» D. Grey cells in brain
119.

Number of mitochondria in bacterial cell is

A. one
B. two
C. many
D. zero
Answer» E.
120.

Myrmecology is study of

A. Insects
B. Ants
C. Crustaceans
D. Arthropods
Answer» C. Crustaceans
121.

What does the term Ebola stand for?

A. A viral disease outbreak in West Africa
B. A viral disease outbreak in Bangladesh
C. A city in Syria destroyed by ISIS.
D. None of these
Answer» B. A viral disease outbreak in Bangladesh
122.

Glucose is a type of

A. Pentose sugar
B. Hexose sugar
C. Tetrose sugar
D. Diose sugar
Answer» C. Tetrose sugar
123.

The cells which are colsely associated and interacting with guard cells are

A. Transfusion tissue
B. Complementary cells
C. Subsidiary cells
D. Hypodermal cells
Answer» D. Hypodermal cells
124.

Cultivable land is defined as

A. land actually under crops
B. cultivable waste land + fallow land
C. old fallow lands + current fallow lands
D. total fallow lands + net sown area
Answer» E.
125.

Rhizobium is a kind of

A. Photosynthetic bacteria
B. Symbiotic bacteria
C. Parasitic bacteria
D. Saprophytic bacteria
Answer» C. Parasitic bacteria
126.

The environment includes

A. Abiotic factors
B. Biotic factors
C. Oxygen and Nitrogen
D. Abiotic and Biotic factors
Answer» E.
127.

Conversion of starch to sugar is essential for

A. Stomatal opening
B. Stomatal closing
C. Stomatal formation
D. Stomatal growth
Answer» B. Stomatal closing
128.

A Parenchyma cell which stores ergastic substance is known as

A. Phragmoblast
B. Idioblast
C. Conidioplast
D. Chloroplast
Answer» C. Conidioplast
129.

The oxygen liberated during photosynthesis comes from

A. Water
B. Carbon dioxide
C. Glucose
D. Chlorophyll
Answer» B. Carbon dioxide
130.

Who is known as the Father of Green Revolution in India?

A. G. Paul
B. Norman Borlaug
C. Van Neil
D. Dr. Mithchell
Answer» C. Van Neil
131.

The gametophyte is called prothallus in

A. Pteridophyta
B. Bryophyta
C. Spermatophyta
D. Thallophyta
Answer» B. Bryophyta
132.

The main function of palisade parenchyma in leaf is

A. Antibiotics
B. Pollutants
C. Hormones
D. Toxins
Answer» E.
133.

Root Hairs arise from

A. Cortex
B. Pericycle
C. Epidermis
D. Endodermis
Answer» D. Endodermis
134.

For immediate energy production in cells, one should take

A. Glucose
B. Proteins
C. Vitamin C
D. Sucrose
Answer» B. Proteins
135.

Bacterial cells do not have

A. Cell wall
B. Plasma membrane
C. Ribosome
D. Mitochondria
Answer» E.
136.

In human body, ligaments are made up of

A. white fibres and some yellow elastic fibres
B. white fibres only
C. yellow fibres only
D. yellow fibres and muscle fibres
Answer» B. white fibres only
137.

Stem is usually

A. Positively Phototropic
B. Negatively Phototropic
C. Negatively geotropic
D. Positively acrotropic
Answer» B. Negatively Phototropic
138.

Which one of the following types of malaria is pernicious malaria ?

A. Vivax
B. Ralapse
C. Tertian
D. Malignant
Answer» E.
139.

Fist is a first class protein as it contains

A. essential amino-acids
B. non-essential amino acids
C. all essential fatty acids
D. no amino acid
Answer» B. non-essential amino acids
140.

Lungs of a plant are

A. Leaves
B. Stems
C. Flowers
D. Roots
Answer» B. Stems
141.

Sporangia bearing leaf of a fern is called

A. Ramentum
B. Indusium
C. Sorus
D. Sporophyll
Answer» D. Sporophyll
142.

Water of coconut is

A. liquid nucellus
B. liquid mesocarp
C. liquid endocarp
D. degenerated liquid endosperm
Answer» E.
143.

Coralloid root of Cycas helps in

A. Absorption of water
B. Absorption of water and fixation of Nitrogen
C. Anchorage
D. Transport of food
Answer» C. Anchorage
144.

Resin is a product of

A. Grapes
B. Coniferous trees
C. Rubber tree
D. Banyan tree
Answer» C. Rubber tree
145.

Water conduction takes place in mosses through

A. Xylem and Phloem
B. Xylem
C. Collenchyma
D. Parenchyma
Answer» E.
146.

Companion cells of phloem are found in

A. Gymnosperms
B. Bryophyta
C. Pteridophyta
D. Angiosperms
Answer» E.
147.

A clone is a group of individuals obtained through

A. Hybridisation
B. Micropropagation
C. Cross pollination
D. Self pollination
Answer» C. Cross pollination
148.

The type of kidneys present in frog are

A. Mesonephros
B. Metanephros
C. Archinephros
D. Pronephros
Answer» B. Metanephros
149.

Morphology of Chromosomes can be best studied at

A. Interphase
B. Prophase
C. Metaphase
D. Zygotene
Answer» D. Zygotene
150.

Which one of the following is an egg-laying mammal ?

A. Sloth
B. Duck - billed platypus
C. Kangaroo
D. Bandicoot
Answer» C. Kangaroo