Photosynthesis in Plants Quiz

1. The green pigment responsible for photosynthesis is:
A chloroplast
B chlorophyll
C variegated

2. The layer of a leaf that does not contain chloroplasts is the:
A palisade cells
B epidermis
C spongy cells

3. Photophosphorylation or Light-Dependent Reaction is also known as the:
A light reaction
B dark reaction
C overall photosynthesis reaction

4. Carbon Fixation or Light-Independent Reaction is also known as the:
A light reaction
B dark reaction
C overall photosynthesis reaction

5. The wavelengths most readily absorbed by chlorophyll are:
A green and blue
B red-orange and violet
C red and green

6. The transparent layer on the top surface of a leaf is the:
A epidermis
B stomata
C xylem

7. The times of the day when there is insufficient light for photosynthesis are:
A midday and midnight
B early morning and late afternoon
C before and after midday

8. Stomata close when the light intensity is high and water loss from the plant is at its peak. Photosynthesis does not occur at this time. When is this?
A early afternoon
B late afternoon
C early morning

9. The transport of carbohydrates in a plant is known as:
Atranslocation
Bphloem
Ctranspiration

10. Water loss from a plant is called:
Atranslocation
Btranspiration
Cphotosynthesis

11. Water enters a plant through the roots and travels upwards through the:
Acuticle
Bphloem
Cxylem

12. Humans store excess glucose as glycogen whereas plants store excess glucose as:
Aglucagon
Boils
Cstarch

13. The protective barrier in a plant leaf is the:
Axylem
Bepidermis
Ccuticle

14. Where are stomata found in an aquatic plant's leaves?
AOn the under side
BOn the upper side
CAquatic plants do not have stomata.

15. What factors affect the rate of photosynthesis?
Alight intensity, light wavelengths, temperature
Black of chlorophyll, lack of water, concentration of carbon dioxide
Cboth of the above