Lesson 4.4.1.1
4.4.1.1 Photosynthetic reaction Quiz: AQA Combined Science, Unit 4
20 questions
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Lesson 4.4.1.1, Photosynthetic reaction: 20 multiple choice questions for the AQA GCSE Combined Science (8464), Unit 4: Bioenergetics, written with Revision Ninja.
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The 20 questions
-
What are the two reactants required for photosynthesis?
- Carbon dioxide and water
- Glucose and oxygen
- Nitrogen and water
- Oxygen and carbon dioxide
-
Which chemical symbol represents glucose?
- H2O
- CO2
- O2
- C6H12O6
-
Which substance is absorbed by plants during photosynthesis?
- Carbon dioxide
- Starch
- Glucose
- Oxygen
-
Why is photosynthesis classified as an endothermic reaction?
- Destroys energy
- Releases heat
- Takes in energy
- Creates matter
-
Which organelle is where light energy is transferred during photosynthesis?
- Mitochondrion
- Ribosome
- Nucleus
- Chloroplast
-
Which symbol represents oxygen?
- O2
- C6H12O6
- H2O
- CO2
-
What is the primary role of light energy in photosynthesis?
- Creates water
- Provides carbon
- Drives the reaction
- Cools the plant
-
Which of these is a product of photosynthesis?
- Light energy
- Glucose
- Carbon dioxide
- Water
-
A plant is kept in the dark for a day. What happens to photosynthesis?
- It speeds up
- Glucose increases
- Oxygen is consumed
- It stops
-
In the balanced equation 6CO2 + 6H2O gives C6H12O6 + 6O2, how many oxygen molecules are made per glucose?
- 12
- 6
- 2
- 1
-
Which energy conversion takes place during photosynthesis?
- Light to chemical
- Chemical to light
- Electrical to chemical
- Kinetic to thermal
-
Which gas is taken in by a plant leaf during bright light conditions?
- Nitrogen
- Oxygen
- Water vapour
- Carbon dioxide
-
What does the term photosynthesis literally mean?
- Making with light
- Breaking with water
- Respiration in cells
- Heat production
-
Where did the oxygen in Earth's atmosphere originally come from?
- Volcanic outgassing
- Photosynthesis
- Combustion
- Respiration
-
Which reaction is endothermic?
- Aerobic respiration
- Combustion of fuel
- Photosynthesis
- Cellular respiration
-
What essential factor is missing if a photosynthesis word equation lacks a light arrow?
- Energy input
- Pressure reading
- Catalyst name
- Temperature value
-
Why do plant leaves contain high numbers of chloroplasts?
- To absorb glucose
- To release nitrogen
- To store water
- To absorb light
-
Which reactant does a plant obtain through its roots?
- Carbon dioxide
- Oxygen
- Water
- Glucose
-
Which atoms are conserved during the reaction of photosynthesis?
- Carbon, nitrogen, oxygen
- Carbon, hydrogen, oxygen
- Hydrogen, helium, oxygen
- Carbon, hydrogen, nitrogen
-
What does photosynthesis store in glucose for food chains?
- Energy from sunlight
- Oxygen from air
- Minerals from roots
- Heat from soil
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