Photosynthesis

Which process fulfills the carbon and energy requirements of autotrophic organisms?

• Fermentation

• Photosynthesis

• Oxidation

• Respiration

What are the substances taken in by autotrophs for photosynthesis?

• Methane and Ethanol

• Oxygen and Nitrogen

• Carbon Dioxide and Water

• Hydrogen and Helium

What is the stored form of carbohydrates in plants?

• Starch

• Glucose

• Sucrose

• Fructose

Which organelle in plant cells contains chlorophyll?

• Mitochondria

• Endoplasmic Reticulum

• Chloroplast

• Nucleus

What is the function of guard cells in plants?

• Help in photosynthesis
• Transport water and nutrients
• Store excess water
• Regulate stomatal opening and closing

What is used to absorb carbon dioxide in the experiment described?

• Potassium Chloride

• Sodium Hydroxide

• Potassium Hydroxide

• Calcium Carbonate

What is the form in which nitrogen is taken up by plants?

• Ammonia

• Nitrates

• Nitrites

• Nitrogen Gas

What is the process by which plants convert light energy into chemical energy?

• Respiration

• Photosynthesis

• Fermentation

• Oxidation

Which pigment is responsible for the green color of plants?

• Carotene

• Anthocyanin

• Chlorophyll

• Xanthophyll

Which gas is released as a byproduct of photosynthesis?

• Oxygen

• Carbon Dioxide

• Nitrogen

• Methane