Lesson 5.2.1
5.2.1 Overall photosynthesis and ATP Quiz: Pearson Edexcel Biology, Unit 5
20 questions
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Lesson 5.2.1, Overall photosynthesis and ATP: 20 multiple choice questions for the Pearson Edexcel Biology (9BI0), Unit 5: On the Wild Side, written with Revision Ninja.
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The 20 questions
-
What are the two primary inorganic reactants required for photosynthesis?
- Glucose and oxygen
- Oxygen and water
- Nitrogen and carbon dioxide
- Carbon dioxide and water
-
What molecule is split during photolysis to release oxygen gas in photosynthesis?
- Carbon dioxide
- ATP
- Water
- Glucose
-
Which energy source drives the photolysis of water during photosynthesis?
- Chemical energy
- Kinetic energy
- Light energy
- Thermal energy
-
Which molecule is the immediate energy currency of cells?
- Glucose
- ATP
- Chlorophyll
- Oxygen
-
Which reaction provides an immediate source of energy for cellular processes?
- Condensation of ADP
- Hydrolysis of ATP
- Photolysis of water
- Oxidation of glucose
-
Phosphorylation of ADP to form ATP requires:
- Oxygen as a reactant
- Energy release
- Glucose as a product
- Energy input
-
Where does the hydrogen required to form glucose in photosynthesis originate?
- Water
- Oxygen gas
- Carbon dioxide
- Atmospheric nitrogen
-
Which pigment captures light energy in photosynthesis?
- Chlorophyll
- Haemoglobin
- Starch
- Cellulose
-
What are the two main products of photosynthesis in plants?
- Glucose and water
- Glucose and oxygen
- Carbon dioxide, water
- Water and oxygen
-
In a calculation, a plant absorbs 6 molecules of carbon dioxide. How many molecules of oxygen are released?
- 3
- 1
- 12
- 6
-
Why is ATP described as an immediate energy currency rather than a long-term store?
- Stored in bulk
- Slowly hydrolysed
- Highly stable
- Rapidly regenerated
-
How is energy processed during the overall chemical reaction of photosynthesis?
- Released as heat
- Converted into ATP
- Stored in glucose
- Destroyed permanently
-
What is the primary role of photosynthetic organisms in food webs?
- Fixing light energy
- Decomposing plant litter
- Releasing carbon dioxide
- Consuming organic matter
-
What role does carbon dioxide play during the process of photosynthesis?
- Carbon source
- Enzyme catalyst
- Energy carrier
- Electron donor
-
Which light-dependent process stops immediately when a plant experiences severe water deficiency?
- Photolysis
- Carbon fixation
- RuBisCO activation
- Starch synthesis
-
In an experiment measuring photosynthesis rate by gas production, what is the dependent variable?
- Temperature of water
- Light intensity
- Volume of oxygen
- Carbon dioxide concentration
-
Which type of molecule produced in photosynthesis transfers energy through food webs?
- Inorganic salts
- Mineral ions
- Organic molecules
- Atmospheric gases
-
A plant makes 180 g of glucose by photosynthesis. What mass of oxygen is released, given that glucose is C6H12O6 (180 g/mol) and O2 is 32 g/mol?
- 192 g
- 32 g
- 180 g
- 96 g
-
Why is photosynthesis classified as an endergonic process?
- Occurs spontaneously
- Releases heat energy
- Requires energy input
- Breaks down glucose
-
What is the main role of ATP generated in light-dependent reactions?
- Fixing carbon dioxide
- Absorbing photons
- Exciting chlorophyll
- Splitting water molecules
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