SCIENCE 9 PHOTOSYNTHESIS

What is the primary function of photosynthesis?

• a) To release oxygen for plants.

• b) To convert chemical energy into light energy.

• c) To convert light energy into chemical energy in the form of glucose.

• d) To absorb water and minerals from the soil.

Which of the following is the general equation for photosynthesis?

• a) C6H12O6 + 6O2 → 6CO2 + 6H2O + Light Energy

• b) 6CO2 + 6H2O + Light Energy → C6H12O6 + 6O2

• c) 6CO2 + C6H12O6 → 6H2O + 6O2 + Light Energy

• d) 6H2O + C6H12O6 + Light Energy → 6CO2 + 6O2

Which plant part is described as the "photosynthesis factory" and is the primary site where photosynthesis takes place?

• a) Roots

• b) Stomata

• c) Veins

• d) Leaves

Tiny pores on the underside of leaves that regulate gas exchange are called:

• a) Chloroplasts

• b) Xylem

• c) Stomata

• d) Phloem

Which component of the plant's transport system is responsible for transporting water from the roots to the leaves?

• a) Phloem

• b) Stomata

• c) Xylem

• d) Guard cells

What is the gel-like fluid inside the chloroplast where the light-independent reactions occur?

• a) Thylakoid

• b) Granum

• c) Stroma

• d) Chlorophyll

Where are the light-dependent reactions of photosynthesis specifically located within the chloroplast?

• a) Stroma

• b) Outer membrane

• c) Thylakoid membranes

• d) Inner membrane

What is the primary role of chlorophyll in photosynthesis?

• a) To transport glucose to other parts of the plant.

• b) To absorb light energy.

• c) To regulate the exchange of gases.

• d) To split water molecules.

Which stage of photosynthesis converts carbon dioxide into sugar?

• a) Light-Dependent Reactions

• b) Transpiration

• c) Light-Independent Reactions (Calvin Cycle)

• d) Water Absorption

What is the main product of photosynthesis in the form of sugar?

• a) Oxygen

• b) Water

• c) Carbon Dioxide

• d) Glucose