GCSE Photosynthesis
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Ideal for Additional AQA students studying Biology.
- 1.Where is the leaf does most photosynthesis take place?
- A.
Spongy Mesophyll Layer
- B.
Palisade Layer
- C.
Waxy Cuticle
- D.
Lower Epidermis
- E.
Stomata
- 2.What carries water up through a plant?
- A.
Phloem Tubes
- B.
Arteries
- C.
Stomata
- D.
Xylem Vessels
- E.
Transpiration
- 3.What are the two products of photosynthesis?
- A.
Water and glucose
- B.
Carbon dioxide and glucose
- C.
Carbon dioxide and water
- D.
Water and oxygen
- E.
Glucose and oxygen
- 4.
- A.
Oxygen levels
- B.
Carbon Dioxide levels
- C.
Chlorophyll concentration
- D.
Light Intensity
- E.
Temperature
- 5.Which mineral ions is important in the manufacture of chlorophyll?
- A.
Nitrate
- B.
Nitrogen
- C.
Phosphate
- D.
Potassium
- E.
Magnesium
- 6.Which of the following is not correct?
- A.
Xylem vessels are made of dead cells.
- B.
Phloem tubes transport sugars throughout the plant.
- C.
Photosynthesis is controlled by enzymes.
- D.
Stomata allow carbon dioxide to enter the leaf.
- E.
Glucose is stored as glycogen by a plant.
- 7.
- A.
Glucose
- B.
Sucrose
- C.
Starch
- D.
Cellulose
- E.
Protein
- 8.What is the approximate concentration of carbon dioxide in the atmosphere?
- A.
3%
- B.
4%
- C.
0.01%
- D.
0.04%
- E.
21%
- 9.What is a modern way of growing crops?
- A.
Hypoponics
- B.
Hypertonics
- C.
Hydrotonics
- D.
Hyperponics
- E.
Hydroponics
- 10.Which is the key symptom of nitrate deficiency in a plant?
- A.
Stunted growth
- B.
Large leaf growth
- C.
Blackening of leaves
- D.
Change in flower colour
- E.
Pesticide resistance
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