Photosynthesis and Experimentation Quiz

What is the primary function of photosynthesis in green plants?

• To produce oxygen for the atmosphere

• To absorb nutrients from the soil

• To convert chemical energy into light energy

• To manufacture carbohydrates from carbon dioxide and water

Where does photosynthesis primarily occur in plants?

• In the roots

• In the flowers

• In the chloroplasts of green leaves

• In the stem

What is a major byproduct of photosynthesis?

• Hydrogen

• Oxygen

• Nitrogen

• Methane

What are the two major steps of photosynthesis?

• Light reaction and dark reaction

• Photosynthesis and respiration

• Glycolysis and fermentation

• Transpiration and evaporation

What happens to a plant if it is deprived of the factors necessary for photosynthesis?

• It stops photosynthesis and uses its stored starch

• It starts producing more oxygen

• It continues to grow using stored starch

• It immediately dies

What is the purpose of using iodine solution in the experiment?

• To provide nutrients to the plant

• To test for the presence of starch

• To kill bacteria on the leaves

• To enhance chlorophyll production

Why are the plants placed in the dark before starting the experiment?

• To enhance root growth

• To remove any starch formed before the experiment

• To prevent water loss

• To increase chlorophyll production

What is the role of potassium hydroxide in the experiment?

• To absorb carbon dioxide

• To provide carbon dioxide

• To act as a control

• To supply water

What does a blue-black color in the iodine test indicate?

• Absence of starch

• Presence of chlorophyll

• Presence of starch

• Absence of chlorophyll

What conclusion can be drawn from the experiment regarding carbon dioxide?

• Carbon dioxide inhibits photosynthesis

• Carbon dioxide is essential for photosynthesis

• Carbon dioxide is only needed for respiration

• Carbon dioxide is not necessary for photosynthesis