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Biology – One Liner 80+ Q&A (Part I)

June 25, 2025
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Q: What is the basic unit of life?
A: Cell

Q: Who is the father of biology?
A: Aristotle

Q: Which cell organelle is known as the powerhouse of the cell?
A: Mitochondria

Q: DNA stands for?
A: Deoxyribonucleic Acid

Q: Who discovered the cell?
A: Robert Hooke

Q: What is the functional unit of the kidney?
A: Nephron

Q: Which part of the plant conducts photosynthesis?
A: Leaf

Q: What pigment is responsible for photosynthesis?
A: Chlorophyll

Q: What is the process by which plants make food?
A: Photosynthesis

Q: Which gas is released during photosynthesis?
A: Oxygen

Q: How many bones are in the adult human body?
A: 206

Q: Which is the largest organ in the human body?
A: Skin

Q: What is the main function of red blood cells?
A: Carry oxygen

Q: What is the normal human body temperature in °C?
A: 37°C

Q: Which vitamin is produced in human skin by sunlight?
A: Vitamin D

Q: What part of the brain controls balance?
A: Cerebellum

Q: Which hormone regulates blood sugar?
A: Insulin

Q: What is the main organ of the circulatory system?
A: Heart

Q: What is the largest bone in the human body?
A: Femur

Q: Which organ purifies blood in the human body?
A: Kidneys

Q: What is the reproductive part of a plant?
A: Flower

Q: Which part of the plant absorbs water?
A: Roots

Q: What tissue transports food in plants?
A: Phloem

Q: What tissue transports water in plants?
A: Xylem

Q: Which plant part becomes fruit?
A: Ovary

Q: What is transpiration in plants?
A: Loss of water vapor from leaves

Q: Which is the fastest-growing plant?
A: Bamboo

Q: What are the smallest living organisms?
A: Bacteria

Q: Who discovered penicillin?
A: Alexander Fleming

Q: What is the shape of DNA?
A: Double helix

Q: Genes are made of?
A: DNA

Q: What is a mutation?
A: A change in DNA sequence

Q: Which disease is caused by a virus?
A: Influenza

Q: Which microorganism is used to make curd?
A: Lactobacillus

Q: What is a vaccine?
A: A substance that stimulates immunity

Q: Which virus causes AIDS?
A: HIV

Q: What is heredity?
A: Passing of traits from parents to offspring

Q: Which animal is known as the ship of the desert?
A: Camel

Q: Which is the largest mammal?
A: Blue whale

Q: What do herbivores eat?
A: Plants

Q: Which animal lays eggs and gives milk?
A: Platypus

Q: What is the backbone made of?
A: Vertebrae

Q: Which bird is the fastest flyer?
A: Peregrine falcon

Q: Which insect symbolizes metamorphosis?
A: Butterfly

Q: What is the study of environment and organisms called?
A: Ecology

Q: Calcitriol is the active form of which vitamin?
A: Vitamin D

Q: BCG is the vaccine for?
A: Tuberculosis

Q: TT vaccine is for?
A: Tetanus

Q: Hardest part of the human body?
A: Tooth enamel

Q: Chemical name of Vitamin E?
A: Tocopherol

Q: Botany is also known as?
A: Phytology

Q: Study of cells is called?
A: Cytology

Q: Leptospirosis is caused by?
A: Bacteria

Q: Another name for RBC?
A: Erythrocytes

Q: Which part of digestive system absorbs water from undigested food?
A: Large intestine

Q: Tuberculosis is caused by?
A: Bacteria

Q: Scientific name of Mango?
A: Mangifera indica

Q: Ginger is a modified?
A: Stem

Q: Alveoli belong to which system?
A: Respiratory system

Q: Longest bone in the human body?
A: Femur

Q: Plants growing in saline water are called?
A: Halophytes

Q: Who discovered bacteria?
A: Antonie van Leeuwenhoek

Q: When was bacteria discovered?
A: 1676

Q: Myopia is a defect of?
A: Eyes

Q: Wilson’s disease is due to accumulation of?
A: Copper

Q: Water transport in plants occurs through?
A: Xylem

Q: Food transport in plants occurs through?
A: Phloem

Q: Femur bones are also known as?
A: Thigh bones

Q: Agar-agar is derived from?
A: Algae

Q: What is ATP?
A: Adenosine Triphosphate energy currency of the cell

Q: Jaundice is caused by excess of?
A: Bilirubin

Q: Saliva helps in digestion of?
A: Starch

Q: Full form of AIDS?
A: Acquired Immune Deficiency Syndrome

Q: Which organ acts as both exocrine and endocrine gland?
A: Pancreas

Q: Sourness of curd is due to?
A: Lactic acid

Q: Growing plants without soil in water is called?
A: Hydroponics

Q: Salmonella is related to which disease?
A: Typhoid

Q: Silviculture is the study of?
A: Forest development

Q: Summer sleep is called?
A: Aestivation

Q: Winter sleep is called?
A: Hibernation

Q: Longest part of the alimentary canal?
A: Small intestine

Q: Muscle fatigue is due to?
A: Lactic acid accumulation

Q: Theory of Evolution is associated with?
A: Charles Darwin

Q: Father of Bacteriology?
A: Louis Pasteur