Photosynthesis(General Knowledge > General Science ) Questions and answers for exam Preparation

Question 1. Which of the following is an example of a HETEROTROPH?

Grass
Algae
Lemon Tree
Bear

Explanation:-

Answer: Option D. -> Bear

Question 2. What molecule absorbs sunlight for photosynthesis?

chloroplast
thylakoid
grana
chlorophyll

Explanation:-

Answer: Option D. -> chlorophyll

Question 3. Which choice correctly shows the gases that enter and exit plants during photosynthesis?

Enter: OxygenExit: Carbon dioxide
Enter: Water vaporExit: Glucose
Enter: Carbon dioxideExit: Oxygen
Enter: LightExit: Water vapor

Explanation:-

Answer: Option C. -> Enter: Carbon dioxideExit: Oxygen

Question 4. Which gas is removed from the atmosphere during photosynthesis?

hydrogen
oxygen
nitrogen
carbon dioxide

Explanation:-

Answer: Option D. -> carbon dioxide

Question 5. What leaf structure prevents water loss?

spongy mesophyll
cuticle
stoma
phloem

Explanation:-

Answer: Option B. -> cuticle

Question 6. What can change shape to open and close the stoma?

guard cells
xylem
phloem
vascular bundle

Explanation:-

Answer: Option A. -> guard cells

Question 7. What is the name of the simple sugar that is produced in photosynthesis?

Sucrose
Dextrose
Glucose
Lactose

Explanation:-

Answer: Option C. -> Glucose

Question 8. What does a plant release into the air?

Plants release carbon dioxide into the air.
Plants release sugar into the air.
Plants release oxygen into the air.
Plants release bacon into the air.

Explanation:-

Answer: Option C. -> Plants release oxygen into the air.

Question 9. Leaves use the energy from the sun to change carbon dioxide and water into what?

chlorophyll
oxygen
carbon dioxide
sugar

Explanation:-

Answer: Option D. -> sugar

Question 10. What is the waste product of photosynthesis?

Oxygen
Carbon Dioxide
Glucose
Chlorophyll

Explanation:-

Answer: Option A. -> Oxygen