Photosynthesis and Light Experiment Quiz

What is the purpose of keeping the potted plant in a dark place for 2-3 days?

• To prepare the plant for sunlight

• To de-starch the leaves

• To ensure the plant is healthy

• To make the leaves soft

Why is the leaf boiled in alcohol during the experiment?

• To remove chlorophyll and make the leaf colorless

• To enhance the leaf's photosynthetic activity

• To sterilize the leaf

• To soften the leaf

What change occurs to the exposed portion of the leaf after iodine treatment?

• It remains unchanged

• It turns pale yellow

• It turns blue-black

• It becomes colorless

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

• Absence of photosynthesis

• Presence of starch

• Presence of chlorophyll

• Presence of alcohol

What conclusion can be drawn from the experiment regarding light and photosynthesis?

• Light is not necessary for photosynthesis

• Light is essential for photosynthesis

• Photosynthesis does not produce starch

• Photosynthesis occurs only in the dark