Lesson T2.1.1
T2.1.1 Photosynthesis: reactants, products and word summary Quiz: KS3 Biology, Unit 2
20 questions
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Lesson T2.1.1, Photosynthesis: reactants, products and word summary: 20 multiple choice questions for the KS3 Biology (National Curriculum), Unit 2: Material cycles and energy, written with Revision Ninja.
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The 20 questions
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What are the two starting reactants for photosynthesis?
- Glucose and oxygen
- Nitrogen and water
- Carbon dioxide and glucose
- Carbon dioxide and water
-
What are the two products formed by photosynthesis?
- Carbon dioxide and water
- Glucose and nitrogen
- Glucose and oxygen
- Nitrogen and oxygen
-
What are the products in the word summary of photosynthesis?
- Nitrogen and water
- Carbon dioxide and water
- Glucose and oxygen
- Light and heat
-
Which cell structure is the site of photosynthesis?
- Chloroplast
- Ribosome
- Vacuole
- Nucleus
-
What energy source drives the process of photosynthesis?
- Sound energy
- Light energy
- Thermal energy
- Chemical energy
-
What is the primary function of chlorophyll in plants?
- Absorbs water
- Absorbs light energy
- Produces glucose
- Releases oxygen
-
Which gas do plants release during photosynthesis?
- Hydrogen
- Carbon dioxide
- Nitrogen
- Oxygen
-
In what form is the glucose made in photosynthesis often stored?
- Starch
- Protein
- Chlorophyll
- Cellulose
-
A pondweed is placed in bright light in water containing carbon dioxide. What gas is most likely released as bubbles?
- Nitrogen
- Oxygen
- Carbon dioxide
- Hydrogen
-
Why does a plant's starch level fall when kept in the dark?
- Excreted as waste
- Converted to water
- Turned into oxygen
- Used for respiration
-
Where do plants take in the water used in photosynthesis?
- Through the cuticle
- Through the roots
- Through the stomata
- Through the petals
-
Through what structures does carbon dioxide enter a leaf?
- Stomata
- Palisade cells
- Xylem vessels
- Phloem tubes
-
How do plants primarily store excess glucose produced by photosynthesis?
- Starch
- Glycogen
- Cellulose
- Protein
-
Which reactant supplies the hydrogen needed to make glucose?
- Water
- Carbon dioxide
- Chlorophyll
- Oxygen
-
Which gas is released as a waste product during photosynthesis?
- Carbon dioxide
- Oxygen
- Nitrogen
- Hydrogen
-
What two vital outputs does photosynthesis provide for Earth?
- Nitrogen and glucose
- Food and oxygen
- Carbon dioxide and heat
- Water and minerals
-
Which organisms other than plants can photosynthesise?
- Mushrooms
- Earthworms
- Fungi
- Algae
-
Which environmental factor directly limits photosynthesis at night?
- Oxygen concentration
- Wind speed
- Light intensity
- Soil salinity
-
What do the arrows represent in a chemical word equation?
- Direction of reaction
- Equal masses
- Reversible states
- Energy loss
-
Why does a plant still need glucose at night?
- For transpiration
- For respiration
- For absorption
- For photosynthesis
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