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Biology MCQ for class 10 Students with Answers PDF Download
Which one of the following animals belongs to mollusca?
(a) Hare
(b) Hyla
(c) Hydra
(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
(c) Saprophytic
(d) Chemosynthetic
Option c – Saprophytic
For the growth in length of plant, which of the following is not essential?
(a) Calcium
(b) Sodium
(c) Nitrogen
(d) Phosphorus
Option b – Sodium
Number of chambers found in the heart of a whale is –
(a) 1
(b) 2
(c) 3
(d) 4
Option d – 4
Among the following, which one is not an ape?
(a) Gorilla
(b) Langur
(c) Gibbon
(d) Orangutan
Option b – Langur
Medicine of Quinine is provided by –
(a) Money plant
(b) Aconite plant
(c) Cinchona plant
(d) Eucalyptus plant
Option c – Cinchona plant
Resin is a product of –
(a) Rubber tree
(b) Banyan tree
(c) Grapes
(d) Coniferous trees
Option d – Coniferous trees
Which of the following is an endemic species?
(a) Nicobar Pigeon
(b) Indian Rhino
(c) Hornbill
(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
(c) To detect heart disease
(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
(c) Waxes
(d) Proteins
Option c – Waxes
Which one of these animals is jawless?
(a) Shark
(b) Myxine
(c) Trygon
(d) Sphyma
Option b – Myxine
To reduce tooth decay, most toothpaste contains –
(a) Bromide
(b) Chloride
(c) Fluoride
(d) Iodide
Option c – Fluoride
Who was the first child born after an operative procedure?
(a) William
(b) Pasteur
(c) Huxley
(d) Caesar
Option d – Caesar
Interferons are synthesized in response to –
(a) Fungi
(b) Virus
(c) Bacteria
(d) Mycoplasma
Option b – Virus
Nomenclature was established in –
(a) 1664
(b) 1898
(c) 1988
(d) 2001
Option b – 1898
From which part of the opium plant do we get morphine?
(a) Bark
(b) Stem
(c) Leaves
(d) Fruit coat
Option d – Fruit coat
One of the best solutions to get rid of biodegradable wastes is
(a) Burning
(b) Dumping
(c) Burying
(d) Recycling
Option d – Recycling
What is farming along with animal husbandry called?
(a) Mixed farming
(b) Dairy farming
(c) Truck farming
(d) Mixed agriculture
Option a – Mixed farming
Which of the following is an endangered species?
(a) Mithun
(b) Blue sheep
(c) Black buck
(d) Gangetic dolphin
Option b – Blue sheep
Entomology is the study of –
(a) Birds
(b) Insects
(c) Fungi
(d) Fossils
Option b – Insects
A plant with 30 cm or more circumference from human chest height is identified as –
(a) Tree
(b) Herbs
(c) Shrub
(d) Medicinal herbs
Option d – Medicinal herbs
Human environment conference 1972 was held at –
(a) Paris
(b) Geneva
(c) Australia
(d) Stockholm
Option d – Stockholm
Transcription means the synthesis of –
(a) RNA
(b) DNA
(c) Lipids
(d) Protein
Option b – DNA
The hormone used as an oral contraceptive is –
(a) Testosterone
(b) Aldosterone
(c) Progesterone
(d) Cortisone
Option c – Progesterone
Which one of the following is the ideal food for newborn babies?
(a) Milk
(b) Honey
(c) Sugar
(d) Water
Option a – Milk
Animals with chitinous exoskeleton are –
(a) Sponges
(b) Insects
(c) Sea-Urchin
(d) Snails
Option b – Insects
Deciduous trees –
(a) Will not lose their leaves
(b) Shed their leaves every year
(c) Synthesize their own food
(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
(c) Composting
(d) Manuring
Option c – Composting
Pleura is the covering of –
(a) Liver
(b) Lung
(c) Kidney
(d) Heart
Option b – Lung
The type of kidneys present in frogs are –
(a) Pronephros
(b) Metanephros
(c) Mesonephros
(d) Archinephros
Option c – Mesonephros
Bulbils take part in –
(a) Food storage
(b) Respiration
(c) Sexual reproduction
(d) Vegetative reproduction
Option d – Vegetative reproduction
Uric acid is the chief nitrogenous waste in –
(a) Birds
(b) Mankind
(c) Fishes
(d) Frogs
Option a – Birds
Of which tissue nails, hoofs, and horns are made of?
(a) Keratin
(b) Chitin
(c) Cuticle
(d) Tunicin
Option a – Keratin
Haemoglobin has the highest affinity for –
(a) Carbon dioxide
(b) Nitrogen
(c) Oxygen
(d) Carbon monoxide
Option c – Oxygen
Which of the following is used for wrapping fractured bones?
(a) Zinc oxide
(b) White lead
(c) White cement
(d) Plaster of Paris
Option d – Plaster of Paris
‘Lockjaw’ is the last phase of which of the following diseases?
(a) Tetanus
(b) Diphtheria
(c) Pneumonia
(d) Syphilis
Option a – Tetanus
Blood pressure is the pressure exerted by the blood on the walls of –
(a) Veins
(b) Heart
(c) Arteries
(d) Capillaries
Option c – Arteries
The population of which of the following is maximum on Earth?
(a) Beetles
(b) Birds
(c) Fishes
(d) Reptiles
Option d – Reptiles
The process of preventing birds from flying is called –
(a) Pecking
(b) Dubbing
(c) Brailing
(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
(c) Refraction of sound
(d) Echo location
Option d – Echo location
The basic unit of biosystematics is –
(a) Ecotype
(b) Genotype
(c) Florotype
(d) Phenotype
Option c – Florotype
The part of the brain which controls emotional reactions in our body is –
(a) Thalamus
(b) Cerebrum
(c) Meninges
(d) Hypothalamus
Option d – Hypothalamus
Which organ is the alternate term for womb?
(a) Vulva
(b) Ureter
(c) Vagina
(d) Uterus
Option d – Uterus
Heart attack occurs due to –
(a) Stopping of heartbeat
(b) Bacterial attack on the heart
(c) Impairment of heart’s working due to unknown reasons
(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
(c) Leafy ant eater
(d) Spiny ant eater
Option d – Spiny ant eater
The language used in writing the scientific name of animals is –
(a) Latin
(b) French
(c) Dutch
(d) German
Option a – Latin
Approximate life span of a parrot is –
(a) 140 years
(b) 70 years
(c) 40 years
(d) 20 years
Option d – 20 years
Seed dormancy is regulated by –
(a) Ethylene
(b) Gibberellic acid
(c) Abscisic 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
(c) Lysosomes
(d) Nucleus
Option b – Mitochondria
Which of the following is known as the ‘graveyard’ of RBCs?
(a) Liver
(b) Appendix
(c) Bone marrow
(d) Spleen
Option d – Spleen
Mushroom cultivation is not useful in –
(a) Preventing cancer
(b) Biogas production
(c) Recycling of agricultural waste
(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
(c) Zinc
(d) Nickel
Option a – Lead
Which of these joints is a Hinge Joint?
(a) Elbow
(b) Wrist
(c) Hip
(d) Shoulder
Option a – Elbow
Which of the following cells secrete insulin?
(a) Delta cells
(b) Beta cells
(c) Nerve 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
(c) Carbohydrates
(d) Polyhydric alcohols
Option a – Peptides
The tallest and thickest type of grass is –
(a) Fodder
(b) Bamboo
(c) Lichens
(d) Alfalfa
Option b – Bamboo
Where are the Eucalyptus trees found in abundance?
(a) Naga Hills
(b) Nilgiri Hills
(c) Mizo Hills
(d) Manipur Hills
Option b – Nilgiri Hills
Anglo-Nubian is a breed of –
(a) Goat
(b) Cattle
(c) Sheep
(d) Poultry
Option a – Goat
Tamiflu is a frontline drug against –
(a) Cancer
(b) Polio
(c) Bird flu
(d) AIDS
Option c – Bird flu
Acute lead poisoning is also known as –
(a) Plumbism
(b) Byssinosis
(c) Itai-itai
(d) Neuralgia
Option a – Plumbism
Which of the following vertebrates lack exoskeleton?
(a) Aves
(b) Amphibia
(c) Chondrichthyes
(d) Mammalia
Option c – Chondrichthyes
Scientific study of birds is known as –
(a) Ornithology
(b) Limnology
(c) Herpetology
(d) Malacology
Option a – Ornithology
Founder of Homeopathy is –
(a) Charaka
(b) Samuel Hahnemann
(c) Sushrutha
(d) Hippocrates
Option b – Samuel Hahnemann
Which angiosperm is vessel-less?
(a) Maize
(b) Hydrilla
(c) Wheat
(d) Trochodendron
Option d – Trochodendron
Which of the following is an endangered species?
(a) Black buck
(b) Blue sheep
(c) Mithun
(d) Gangetic dolphin
Option b – Blue sheep
Animals adapted to life in air are called –
(a) Volent
(b) Fossorial
(c) Arboreal
(d) Cursorial
Option c – Arboreal
A cross between a homozygous recessive and a heterozygous plant is –
(a) Test cross
(b) Back cross
(c) Dehybrid 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
(c) Aging of 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
(c) Earthworm
(d) Fish
Option b – Hydra
Which one of the following plants is used to treat blood pressure?
(a) Neem
(b) Tulsi
(c) Sarpagandha
(d) Babool
Option c – Sarpagandha
The tallest plant in the world is –
(a) Tectona
(b) Eucalyptus
(c) Polyalthia
(d) Pterocarpus
Option b – Eucalyptus
Osteocytes are found in –
(a) Blood
(b) Lymph
(c) Bone
(d) Cartilage
Option c – Bone
Which of the following are warm-blooded animals?
(a) Draco
(b) Whales
(c) Alytes
(d) Whale sharks
Option b – Whales
Pesticides are used to destroy –
(a) Insects
(b) Micro-organisms
(c) Poisonous plants
(d) Poisonous substances in soil
Option a – Insects
Which of the following is not a gland?
(a) Liver
(b) Thyroid
(c) Pancreas
(d) Stomach
Option c – Pancreas
A drug which helps in controlling fever is –
(a) Ibuprofen
(b) Paracetamol
(c) Penicillin
(d) Corticosteroid
Option b – Paracetamol
The largest flightless bird which can run at a great speed is –
(a) Kiwi
(b) Emu
(c) Penguin
(d) Ostrich
Option d – Ostrich
The method used to obtain alcohol from molasses is called –
(a) Distillation
(b) Oxidation
(c) Hydrolysis
(d) Fermentation
Option d – Fermentation
The total number of bones in the human body is –
(a) 206
(b) 226
(c) 236
(d) 256
Option a – 206
High levels of uric acid in the blood cause –
(a) Gout
(b) Asthma
(c) Arthritis
(d) Rheumatism
Option a – Gout
Jaundice is caused due to the infection of –
(a) Spleen
(b) Brain
(c) Liver
(d) Kidney
Option c – Liver
Polio is caused by –
(a) Insect
(b) Fungus
(c) Virus
(d) Bacterium
Option c – Virus
Christmas factor is involved in –
(a) Digestion
(b) Respiration
(c) Excretion
(d) Blood coagulation
Option d – Blood coagulation
Lungs of a plant are –
(a) Roots
(b) Stems
(c) Leaves
(d) Flowers
Option c – Leaves
“Survival of the fittest” was coined by –
(a) Weismann
(b) Mendel
(c) Darwin
(d) Lamarck
Option c – Darwin
Glucose is a type of –
(a) Diose sugar
(b) Pentose sugar
(c) Hexose sugar
(d) Tetrose sugar
Option c – Hexose sugar
The causative agent of Tuberculosis is –
(a) HIV
(b) Mycobacterium
(c) Aspergillus
(d) Rhabdovirus
Option b – Mycobacterium
The number of chambers in the human heart is –
(a) Two
(b) Three
(c) Four
(d) Five
Option c – Four
Which part of the tongue bears cells for sour taste?
(a) Back
(b) Front
(c) Middle
(d) Sides
Option d – Sides
Which of the following is a monogenetic parasite?
(a) Earthworm
(b) Hydra
(c) Fasciola
(d) Ascaris
Option d – Ascaris
Total number of muscles present in our body is –
(a) 565
(b) 556
(c) 656
(d) 665
Option c – 656
The maximum biological damage is produced by –
(a) Alpha-rays
(b) X-rays
(c) Beta-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
(c) Prothrombin
(d) Fibrinogen
Option b – Thrombin
Kidney disease in man is caused by the pollutant –
(a) Iron
(b) Cobalt
(c) Cadmium
(d) Carbon
Option c – Cadmium
(a) Bacteria
(b) Viruses
(c) Poisons
(d) Diseases
Option c – Poisons
The large amount of sugar present in human blood is –
(a) Glucose
(b) Lactose
(c) Sucrose
(d) Fructose
Option a – Glucose
Which of the following is also called the ‘Power Plant’ of the cell?
(a) Ribosome
(b) Golgi body
(c) Mitochondrion
(d) Lysosome
Option c – Mitochondrion
Dialysis is used to perform the function of –
(a) Heart
(b) Liver
(c) Kidneys
(d) Lungs
Option c – Kidneys
Which of the following provides energy for photosynthesis?
(a) Carbon dioxide
(b) Water
(c) Sunlight
(d) Chlorophyll
Option d – Chlorophyll
Which of the following is a deficiency disease?
(a) Cancer
(b) Scurvy
(c) Jaundice
(d) Asthma
Option b – Scurvy
Yellow spots on citrus leaves are due to the deficiency of –
(a) Iron
(b) Boron
(c) Zinc
(d) Magnesium
Option c – Zinc
Which amongst the following is the largest endocrine gland in the body?
(a) Adrenal
(b) Pituitary
(c) Parathyroid
(d) Thyroid
Option d – Thyroid
Heart attack occurs due to –
(a) Stopping of heartbeat
(b) Bacterial attack on the heart
(c) Impairment of heart’s working due to unknown reasons
(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
(c) Calcium
(d) Phosphorus
Option c – Calcium
Which part of the heart receives pure blood from the lungs?
(a) Right ventricle
(b) Left auricle
(c) Right auricle
(d) Left ventricle
Option b – Left auricle
The outermost layer of skin is called –
(a) Cortex
(b) Dermis
(c) Epidermis
(d) Cuticle
Option c – Epidermis
Plant and animal cells differ in which of the following structures?
(a) Cell wall
(b) Ribosome
(c) Nuclei
(d) Duodenum
Option a – Cell wall
What is the body temperature of a healthy person?
(a) 97° F
(b) 97.4° F
(c) 98° F
(d) 98.4° F
Option d – 98.4° F
(a) Liver
(b) Lungs
(c) Heart
(d) Kidney
Option c – Heart
The functional unit of the kidney is called –
(a) Lymph
(b) Neuron
(c) Nephron
(d) Nephritis
Option c – Nephron
Which of the following is a product of plants?
(a) Morphine
(b) Quinine
(c) Insulin
(d) Aspirin
Option b – Quinine
Who discovered that mosquitoes serve as a carrier of malaria?
(a) Ronald Ross
(b) Robert Koch
(c) Jonas Salk
(d) Louis Pasteur
Option a – Ronald Ross
The Chinese method of treating disease by needles is called –
(a) Herbal
(b) Numbing
(c) Acupuncture
(d) Anabiosis
Option c – Acupuncture
AIDS disease is not transmitted by –
(a) Handshake
(b) Blood transfusion
(c) Sexual contact
(d) Contaminated injection needle
Option a – Handshake
Most fish do not sink in water because of the presence of –
(a) Air sinuses
(b) Swimmerets
(c) Swim bladder
(d) Buoyant scales on the body
Option c – Swim bladder
The saliva secreted in the mouth digests –
(a) Starch
(b) Fats
(c) Proteins
(d) Vitamins
Option a – Starch
Deposition of uric acid crystals at the joints is the cause of –
(a) Rickets
(b) Arthritis
(c) Osteoporosis
(d) Osteomalacia
Option b – Arthritis
From which part of the plant is clove, the commonly used spice, obtained?
(a) Root
(b) Stem
(c) Fruit
(d) Flower bud
Option d – Flower bud
Which of the following is the largest living bird?
(a) Kiwi
(b) Eagle
(c) Ostrich
(d) Peacock
Option c – Ostrich
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