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Photosynthesis Study Material

Biology

This study material covers the fundamental processes of photosynthesis, including the reactants, products, stages, and importance of this vital biological process for life on Earth.

photosynthesis plants energy
20 Questions Easy Ages 10+ Jan 12, 2026

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About this Study Set

This study set covers Biology through 20 practice questions. This study material covers the fundamental processes of photosynthesis, including the reactants, products, stages, and importance of this vital biological process for life on Earth. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 20 questions from the Photosynthesis Study Material study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 What is the primary purpose of photosynthesis?
  • A To produce oxygen for animals.
  • B To convert light energy into chemical energy.
  • C To absorb water from the soil.
  • D To release carbon dioxide into the atmosphere.
2 Which gas is absorbed from the atmosphere during photosynthesis?
  • A Oxygen
  • B Nitrogen
  • C Carbon dioxide
  • D Hydrogen
3 What is the main pigment responsible for capturing light energy in plants?
  • A Carotenoid
  • B Anthocyanin
  • C Chlorophyll
  • D Xanthophyll
4 Where does photosynthesis primarily take place within a plant cell?
  • A Nucleus
  • B Mitochondria
  • C Ribosomes
  • D Chloroplasts
5 What are the main products of photosynthesis?
  • A Carbon dioxide and water
  • B Glucose and oxygen
  • C Light energy and chlorophyll
  • D Nitrogen and water
6 Which of the following is a reactant in photosynthesis?
  • A Glucose
  • B Oxygen
  • C Water
  • D ATP
7 Photosynthesis is essential for most life on Earth because it produces:
  • A Soil nutrients
  • B Fossil fuels
  • C Oxygen and food
  • D Minerals
8 The light-dependent reactions of photosynthesis occur in the:
  • A Stroma
  • B Thylakoid membranes
  • C Cytoplasm
  • D Cell wall
9 The Calvin cycle (light-independent reactions) uses energy from the light-dependent reactions to convert carbon dioxide into:
  • A Water
  • B Oxygen
  • C Glucose
  • D Light
10 What is the chemical formula for glucose, a sugar produced during photosynthesis?
  • A H2O
  • B CO2
  • C C6H12O6
  • D O2
11 Plants release oxygen as a byproduct of photosynthesis. This oxygen is vital for:
  • A Plant growth
  • B Animal respiration
  • C Soil formation
  • D Water conservation
12 What is the role of stomata in photosynthesis?
  • A To absorb sunlight
  • B To release oxygen and absorb carbon dioxide
  • C To transport water to the leaves
  • D To provide structural support to the plant
13 The energy captured during the light-dependent reactions is stored in molecules of:
  • A Glucose and starch
  • B ATP and NADPH
  • C Carbon dioxide and water
  • D Oxygen and water
14 Photosynthesis converts light energy into what type of energy?
  • A Thermal energy
  • B Electrical energy
  • C Chemical energy
  • D Kinetic energy
15 Which part of the chloroplast is the site of the Calvin cycle?
  • A Thylakoid
  • B Granum
  • C Stroma
  • D Outer membrane
16 What is the source of electrons for the electron transport chain during photosynthesis?
  • A Oxygen
  • B Carbon dioxide
  • C Water
  • D Glucose
17 Which of the following is NOT a factor that affects the rate of photosynthesis?
  • A Light intensity
  • B Temperature
  • C Wind speed
  • D Carbon dioxide concentration
18 The process of splitting water molecules during photosynthesis is called:
  • A Respiration
  • B Transpiration
  • C Photolysis
  • D Fermentation
19 Besides plants, which other organisms can perform photosynthesis?
  • A Fungi
  • B Bacteria and algae
  • C Animals
  • D Viruses
20 What is the overall balanced chemical equation for photosynthesis?
  • A CO2 + H2O → C6H12O6 + O2
  • B C6H12O6 + O2 → CO2 + H2O
  • C 6CO2 + 6H2O → C6H12O6 + 6O2
  • D O2 + H2O → CO2 + C6H12O6
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