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Photosynthesis Quiz and Key Concepts

The spongy mesophyll layer is where most photosynthesis takes place in a leaf. Xylem vessels carry water up through a plant. The two products of photosynthesis are glucose and oxygen. Light intensity is not a limiting factor of photosynthesis. Magnesium is an important mineral ion in the manufacture of chlorophyll. Glucose is not stored as glycogen by plants. Iodine allows us to test for the presence of starch. The approximate concentration of carbon dioxide in the atmosphere is 0.04%. Hydroponics is a modern method of growing crops without soil. Stunted growth is a key symptom of nitrate deficiency in plants.

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Saravana Selvi Sanmugam
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57 views6 pages

Photosynthesis Quiz and Key Concepts

The spongy mesophyll layer is where most photosynthesis takes place in a leaf. Xylem vessels carry water up through a plant. The two products of photosynthesis are glucose and oxygen. Light intensity is not a limiting factor of photosynthesis. Magnesium is an important mineral ion in the manufacture of chlorophyll. Glucose is not stored as glycogen by plants. Iodine allows us to test for the presence of starch. The approximate concentration of carbon dioxide in the atmosphere is 0.04%. Hydroponics is a modern method of growing crops without soil. Stunted growth is a key symptom of nitrate deficiency in plants.

Uploaded by

Saravana Selvi Sanmugam
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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PHOTOSYNTHESIS

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. Which is not a limiting factor of photosynthesis?

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. Iodine allows us to test the presence of what?

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
11. Name the regions A to D.

12. What 4 things might affect the rate of photosynthesis?

13. State the definition of chemosynthesis

14. State the similarities and differences between photosynthesis and chemosynthesis

15. Write the word equation for aerobic and anaerobic respiration

16. Write the word equation for fermentation

17. Discuss the definition of oxygen debt


18. State 3 products of fermentation :

19. Define the following :

a) Food Chain

b) Food Web

c) Population

d) Community

e) Habitat

f) Niche

g) Ecosystem

20.

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