Biology MCQ for class 10 with Answers PDF Download 2025

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Biology MCQ for class 10 Students with Answers PDF Download

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Biology MCQ for class 10 Students with Answers PDF Free Download

Which one of the following animals belongs to mollusca?

(a) Hare

(b) Hyla

(d) Haliotis

Option a – Hare

What is the mode of nutrition of mushroom? ( Biology MCQ for class 10 with Answers PDF Download )

(a) Parasitic

(b) Photosynthetic

(d) Chemosynthetic

Option c – Saprophytic

For the growth in length of plant, which of the following is not essential?

(a) Calcium

(b) Sodium

(d) Phosphorus

Option b – Sodium

Number of chambers found in the heart of a whale is –

(a) 1

(b) 2

(d) 4

Option d – 4

Among the following, which one is not an ape?

(a) Gorilla

(b) Langur

(d) Orangutan

Option b – Langur

Medicine of Quinine is provided by –

(a) Money plant

(b) Aconite plant

(d) Eucalyptus plant

Option c – Cinchona plant

Resin is a product of –

(a) Rubber tree

(b) Banyan tree

(d) Coniferous trees

Option d – Coniferous trees

Which of the following is an endemic species?

(a) Nicobar Pigeon

(b) Indian Rhino

(d) Pink-headed duck

Option c – Hornbill

X-rays can be used –

(a) For cutting and welding of metals

(b) To detect gold under the earth

(d) To detect defects in precious stones and diamonds

Option d – To detect defects in precious stones and diamonds

Water flows off the wings of birds and insects due to the presence of –

(a) Minerals

(b) Sugars

(d) Proteins

Option c – Waxes

Which one of these animals is jawless?

(a) Shark

(b) Myxine

(d) Sphyma

Option b – Myxine

To reduce tooth decay, most toothpaste contains –

(a) Bromide

(b) Chloride

(d) Iodide

Option c – Fluoride

Who was the first child born after an operative procedure?

(a) William

(b) Pasteur

(d) Caesar

Option d – Caesar

Interferons are synthesized in response to –

(a) Fungi

(b) Virus

(d) Mycoplasma

Option b – Virus

Nomenclature was established in –

(a) 1664

(b) 1898

(d) 2001

Option b – 1898

From which part of the opium plant do we get morphine?

(a) Bark

(b) Stem

(d) Fruit coat

Option d – Fruit coat

One of the best solutions to get rid of biodegradable wastes is

(a) Burning

(b) Dumping

(d) Recycling

Option d – Recycling

What is farming along with animal husbandry called?

(a) Mixed farming

(b) Dairy farming

(d) Mixed agriculture

Option a – Mixed farming

Which of the following is an endangered species?

(a) Mithun

(b) Blue sheep

(d) Gangetic dolphin

Option b – Blue sheep

Entomology is the study of –

(a) Birds

(b) Insects

(d) Fossils

Option b – Insects

A plant with 30 cm or more circumference from human chest height is identified as –

(a) Tree

(b) Herbs

(d) Medicinal herbs

Option d – Medicinal herbs

Human environment conference 1972 was held at –

(a) Paris

(b) Geneva

(d) Stockholm

Option d – Stockholm

Transcription means the synthesis of –

(a) RNA

(b) DNA

(d) Protein

Option b – DNA

The hormone used as an oral contraceptive is –

(a) Testosterone

(b) Aldosterone

(d) Cortisone

Option c – Progesterone

Which one of the following is the ideal food for newborn babies?

(a) Milk

(b) Honey

(d) Water

Option a – Milk

Animals with chitinous exoskeleton are –

(a) Sponges

(b) Insects

(d) Snails

Option b – Insects

Deciduous trees –

(a) Will not lose their leaves

(b) Shed their leaves every year

(d) Depend on others for their food

Option b – Shed their leaves every year

The biological process in which both aerobes and anaerobes degrade organic matter is –

(a) Digesting

(b) Nitrifying

(d) Manuring

Option c – Composting

Pleura is the covering of –

(a) Liver

(b) Lung

(d) Heart

Option b – Lung

The type of kidneys present in frogs are –

(a) Pronephros

(b) Metanephros

(d) Archinephros

Option c – Mesonephros

Bulbils take part in –

(a) Food storage

(b) Respiration

(d) Vegetative reproduction

Option d – Vegetative reproduction

Uric acid is the chief nitrogenous waste in –

(a) Birds

(b) Mankind

(d) Frogs

Option a – Birds

Of which tissue nails, hoofs, and horns are made of?

(a) Keratin

(b) Chitin

(d) Tunicin

Option a – Keratin

Haemoglobin has the highest affinity for –

(a) Carbon dioxide

(b) Nitrogen

(d) Carbon monoxide

Option c – Oxygen

Which of the following is used for wrapping fractured bones?

(a) Zinc oxide

(b) White lead

(d) Plaster of Paris

Option d – Plaster of Paris

‘Lockjaw’ is the last phase of which of the following diseases?

(a) Tetanus

(b) Diphtheria

(d) Syphilis

Option a – Tetanus

Blood pressure is the pressure exerted by the blood on the walls of –

(a) Veins

(b) Heart

(d) Capillaries

Option c – Arteries

The population of which of the following is maximum on Earth?

(a) Beetles

(b) Birds

(d) Reptiles

Option d – Reptiles

The process of preventing birds from flying is called –

(a) Pecking

(b) Dubbing

(d) Debeaking

Option c – Brailing

Which phenomenon do bats or dolphins use to find prey, predators, or obstacles?

(a) Scattering of sound

(b) Formation of beats

(d) Echo location

Option d – Echo location

The basic unit of biosystematics is –

(a) Ecotype

(b) Genotype

(d) Phenotype

Option c – Florotype

The part of the brain which controls emotional reactions in our body is –

(a) Thalamus

(b) Cerebrum

(d) Hypothalamus

Option d – Hypothalamus

Which organ is the alternate term for womb?

(a) Vulva

(b) Ureter

(d) Uterus

Option d – Uterus

Heart attack occurs due to –

(a) Stopping of heartbeat

(b) Bacterial attack on the heart

(d) Lack of supply of blood to the heart itself

Option d – Lack of supply of blood to the heart itself

Which of the following is an egg-laying mammal?

(a) Bat

(b) Whale

(d) Spiny ant eater

Option d – Spiny ant eater

The language used in writing the scientific name of animals is –

(a) Latin

(b) French

(d) German

Option a – Latin

Approximate life span of a parrot is –

(a) 140 years

(b) 70 years

(d) 20 years

Option d – 20 years

Seed dormancy is regulated by –

(a) Ethylene

(b) Gibberellic acid

(d) Indole acetic acid

Option c – Abscisic acid

RBCs do not perform aerobic respiration because they do not contain –

(a) Endoplasmic reticulum

(b) Mitochondria

(d) Nucleus

Option b – Mitochondria

Which of the following is known as the ‘graveyard’ of RBCs?

(a) Liver

(b) Appendix

(d) Spleen

Option d – Spleen

Mushroom cultivation is not useful in –

(a) Preventing cancer

(b) Biogas production

(d) Biological control of crop diseases

Option d – Biological control of crop diseases

Chocolates can be bad for health because of high content of –

(a) Lead

(b) Cobalt

(d) Nickel

Option a – Lead

Which of these joints is a Hinge Joint?

(a) Elbow

(b) Wrist

(d) Shoulder

Option a – Elbow

Which of the following cells secrete insulin?

(a) Delta cells

(b) Beta cells

(d) Alpha cells

Option b – Beta cells

Aspartame is the name of a product used by diabetic patients as a sweetening agent. It belongs to the class of –

(a) Peptides

(b) Alkaloids

(d) Polyhydric alcohols

Option a – Peptides

The tallest and thickest type of grass is –

(a) Fodder

(b) Bamboo

(d) Alfalfa

Option b – Bamboo

Where are the Eucalyptus trees found in abundance?

(a) Naga Hills

(b) Nilgiri Hills

(d) Manipur Hills

Option b – Nilgiri Hills

Anglo-Nubian is a breed of –

(a) Goat

(b) Cattle

(d) Poultry

Option a – Goat

Tamiflu is a frontline drug against –

(a) Cancer

(b) Polio

(d) AIDS

Option c – Bird flu

Acute lead poisoning is also known as –

(a) Plumbism

(b) Byssinosis

(d) Neuralgia

Option a – Plumbism

Which of the following vertebrates lack exoskeleton?

(a) Aves

(b) Amphibia

(d) Mammalia

Option c – Chondrichthyes

Scientific study of birds is known as –

(a) Ornithology

(b) Limnology

(d) Malacology

Option a – Ornithology

Founder of Homeopathy is –

(a) Charaka

(b) Samuel Hahnemann

(d) Hippocrates

Option b – Samuel Hahnemann

Which angiosperm is vessel-less?

(a) Maize

(b) Hydrilla

(d) Trochodendron

Option d – Trochodendron

Which of the following is an endangered species?

(a) Black buck

(b) Blue sheep

(d) Gangetic dolphin

Option b – Blue sheep

Animals adapted to life in air are called –

(a) Volent

(b) Fossorial

(d) Cursorial

Option c – Arboreal

A cross between a homozygous recessive and a heterozygous plant is –

(a) Test cross

(b) Back cross

(d) Monohybrid cross

Option a – Test cross

Grey hair is caused due to –

(a) Death of dermal cells

(b) Loss of melanin in epidermal cells

(d) Loss of sebum in epidermal cells

Option b – Loss of melanin in epidermal cells

Which of the following has no blood but respires?

(a) Cockroach

(b) Hydra

(d) Fish

Option b – Hydra

Which one of the following plants is used to treat blood pressure?

(a) Neem

(b) Tulsi

(d) Babool

Option c – Sarpagandha

The tallest plant in the world is –

(a) Tectona

(b) Eucalyptus

(d) Pterocarpus

Option b – Eucalyptus

Osteocytes are found in –

(a) Blood

(b) Lymph

(d) Cartilage

Option c – Bone

Which of the following are warm-blooded animals?

(a) Draco

(b) Whales

(d) Whale sharks

Option b – Whales

Pesticides are used to destroy –

(a) Insects

(b) Micro-organisms

(d) Poisonous substances in soil

Option a – Insects

Which of the following is not a gland?

(a) Liver

(b) Thyroid

(d) Stomach

Option c – Pancreas

A drug which helps in controlling fever is –

(a) Ibuprofen

(b) Paracetamol

(d) Corticosteroid

Option b – Paracetamol

The largest flightless bird which can run at a great speed is –

(a) Kiwi

(b) Emu

(d) Ostrich

Option d – Ostrich

The method used to obtain alcohol from molasses is called –

(a) Distillation

(b) Oxidation

(d) Fermentation

Option d – Fermentation

The total number of bones in the human body is –

(a) 206

(b) 226

(d) 256

Option a – 206

High levels of uric acid in the blood cause –

(a) Gout

(b) Asthma

(d) Rheumatism

Option a – Gout

Jaundice is caused due to the infection of –

(a) Spleen

(b) Brain

(d) Kidney

Option c – Liver

Polio is caused by –

(a) Insect

(b) Fungus

(d) Bacterium

Option c – Virus

Christmas factor is involved in –

(a) Digestion

(b) Respiration

(d) Blood coagulation

Option d – Blood coagulation

Lungs of a plant are –

(a) Roots

(b) Stems

(d) Flowers

Option c – Leaves

“Survival of the fittest” was coined by –

(a) Weismann

(b) Mendel

(d) Lamarck

Option c – Darwin

Glucose is a type of –

(a) Diose sugar

(b) Pentose sugar

(d) Tetrose sugar

Option c – Hexose sugar

The causative agent of Tuberculosis is –

(a) HIV

(b) Mycobacterium

(d) Rhabdovirus

Option b – Mycobacterium

The number of chambers in the human heart is –

(a) Two

(b) Three

(d) Five

Option c – Four

Which part of the tongue bears cells for sour taste?

(a) Back

(b) Front

(d) Sides

Option d – Sides

Which of the following is a monogenetic parasite?

(a) Earthworm

(b) Hydra

(d) Ascaris

Option d – Ascaris

Total number of muscles present in our body is –

(a) 565

(b) 556

(d) 665

Option c – 656

The maximum biological damage is produced by –

(a) Alpha-rays

(b) X-rays

(d) Gamma-rays

Option d – Gamma-rays

Blood does not clot in the blood vessels due to the presence of –

(a) Heparin

(b) Thrombin

(d) Fibrinogen

Option b – Thrombin

Kidney disease in man is caused by the pollutant –

(a) Iron

(b) Cobalt

(d) Carbon

Option c – Cadmium

Toxicology is related to the study of –

(a) Bacteria

(b) Viruses

(d) Diseases

Option c – Poisons

The large amount of sugar present in human blood is –

(a) Glucose

(b) Lactose

(d) Fructose

Option a – Glucose

Which of the following is also called the ‘Power Plant’ of the cell?

(a) Ribosome

(b) Golgi body

(d) Lysosome

Option c – Mitochondrion

Dialysis is used to perform the function of –

(a) Heart

(b) Liver

(d) Lungs

Option c – Kidneys

Which of the following provides energy for photosynthesis?

(a) Carbon dioxide

(b) Water

(d) Chlorophyll

Option d – Chlorophyll

Which of the following is a deficiency disease?

(a) Cancer

(b) Scurvy

(d) Asthma

Option b – Scurvy

Yellow spots on citrus leaves are due to the deficiency of –

(a) Iron

(b) Boron

(d) Magnesium

Option c – Zinc

Which amongst the following is the largest endocrine gland in the body?

(a) Adrenal

(b) Pituitary

(d) Thyroid

Option d – Thyroid

Heart attack occurs due to –

(a) Stopping of heartbeat

(b) Bacterial attack on the heart

(d) Lack of supply of blood to the heart itself

Option d – Lack of supply of blood to the heart itself

The main constituent of the human skeleton is –

(a) Zinc

(b) Iron

(d) Phosphorus

Option c – Calcium

Which part of the heart receives pure blood from the lungs?

(a) Right ventricle

(b) Left auricle

(d) Left ventricle

Option b – Left auricle

The outermost layer of skin is called –

(a) Cortex

(b) Dermis

(d) Cuticle

Option c – Epidermis

Plant and animal cells differ in which of the following structures?

(a) Cell wall

(b) Ribosome

(d) Duodenum

Option a – Cell wall

What is the body temperature of a healthy person?

(a) 97° F

(b) 97.4° F

(d) 98.4° F

Option d – 98.4° F

Blood pressure is related to –

(a) Liver

(b) Lungs

(d) Kidney

Option c – Heart

The functional unit of the kidney is called –

(a) Lymph

(b) Neuron

(d) Nephritis

Option c – Nephron

Which of the following is a product of plants?

(a) Morphine

(b) Quinine

(d) Aspirin

Option b – Quinine

Who discovered that mosquitoes serve as a carrier of malaria?

(a) Ronald Ross

(b) Robert Koch

(d) Louis Pasteur

Option a – Ronald Ross

The Chinese method of treating disease by needles is called –

(a) Herbal

(b) Numbing

(d) Anabiosis

Option c – Acupuncture

AIDS disease is not transmitted by –

(a) Handshake

(b) Blood transfusion

(d) Contaminated injection needle

Option a – Handshake

Most fish do not sink in water because of the presence of –

(a) Air sinuses

(b) Swimmerets

(d) Buoyant scales on the body

Option c – Swim bladder

The saliva secreted in the mouth digests –

(a) Starch

(b) Fats

(d) Vitamins

Option a – Starch

Deposition of uric acid crystals at the joints is the cause of –

(a) Rickets

(b) Arthritis

(d) Osteomalacia

Option b – Arthritis

From which part of the plant is clove, the commonly used spice, obtained?

(a) Root

(b) Stem

(d) Flower bud

Option d – Flower bud

Which of the following is the largest living bird?

(a) Kiwi

(b) Eagle

(d) Peacock

Option c – Ostrich

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