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Biology Essentials for Teens

Biology

A collection of foundational biology facts covering genetics, ecology, anatomy, and microbiology.

science biology education
15 Questions Easy Ages 13+ Nov 11, 2026
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About this Study Set

This study set covers Biology through 15 practice questions. A collection of foundational biology facts covering genetics, ecology, anatomy, and microbiology. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

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Browse all 15 questions from the Biology Essentials for Teens study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 Which organelle is known as the powerhouse of the cell?
  • A Nucleus
  • B Mitochondria
  • C Ribosome
  • D Golgi apparatus
2 What is the primary sugar produced during photosynthesis?
  • A Glucose
  • B Fructose
  • C Lactose
  • D Sucrose
3 Which molecule carries genetic information in living organisms?
  • A Protein
  • B Lipid
  • C DNA
  • D Carbohydrate
4 What is the process by which plants release water vapour into the atmosphere?
  • A Respiration
  • B Transpiration
  • C Condensation
  • D Photosynthesis
5 Which blood cells are responsible for fighting infections in the human body?
  • A Red blood cells
  • B Platelets
  • C White blood cells
  • D Plasma cells
6 What is the basic structural unit of all living organisms?
  • A Tissue
  • B Organ
  • C Cell
  • D System
7 Which gas do humans exhale as a waste product of cellular respiration?
  • A Oxygen
  • B Nitrogen
  • C Carbon dioxide
  • D Hydrogen
8 In genetics, what term describes an organism's observable physical characteristics?
  • A Genotype
  • B Phenotype
  • C Allele
  • D Chromosome
9 Which part of the brain is primarily responsible for balance and coordination?
  • A Cerebrum
  • B Cerebellum
  • C Brainstem
  • D Thalamus
10 What type of organism is a mushroom?
  • A Plant
  • B Animal
  • C Fungi
  • D Protist
11 How many chromosomes are typically found in a standard human somatic cell?
  • A 23
  • B 46
  • C 24
  • D 48
12 What is the primary function of the red blood cells?
  • A Fighting bacteria
  • B Transporting oxygen
  • C Clotting blood
  • D Producing antibodies
13 Which process results in two genetically identical daughter cells?
  • A Meiosis
  • B Mitosis
  • C Fertilisation
  • D Mutation
14 What is the largest organ in the human body?
  • A Liver
  • B Lungs
  • C Skin
  • D Heart
15 Which vitamin is primarily synthesised by the human body through exposure to sunlight?
  • A Vitamin A
  • B Vitamin C
  • C Vitamin D
  • D Vitamin K
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