Photosynthesis and Carbon Dioxide Experiment Quiz

Why is carbon dioxide considered essential for photosynthesis?

• It helps in the absorption of sunlight.

• It is used to produce starch during photosynthesis.

• It is a source of oxygen for the plant.

• It provides energy to the plant.

Which material is used to seal the boiling tube in the experiment?

• Alcohol

• Petroleum jelly

• Iodine solution

• Water

What is the purpose of boiling the leaf in alcohol during the experiment?

• To enhance the leaf's color

• To remove chlorophyll and make the leaf colorless

• To kill bacteria on the leaf

• To make the leaf more flexible

What does the blue color on the leaf indicate after dipping it in iodine solution?

• Presence of starch

• Absence of carbon dioxide

• Presence of water

• Presence of chlorophyll

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

• Carbon dioxide is not necessary for photosynthesis.

• Carbon dioxide is only needed for plant growth.

• Carbon dioxide is essential for the production of starch during photosynthesis.

• Carbon dioxide is harmful to plants.