Understanding Photosynthesis Basics

What is photosynthesis?

• The process by which plants make their own food using sunlight.

• The process by which animals breathe.

• The process of water evaporation.

• The process of plant growth.

Which of the following is the first stage of photosynthesis?

• Water absorption by roots.

• Sunlight absorption by leaves.

• Oxygen release by plants.

• Sugar production in leaves.

Why is sunlight important for photosynthesis?

• It helps plants to grow taller.

• It provides energy for plants to make food.

• It keeps plants warm.

• It helps plants to absorb water.

What do plants produce during photosynthesis?

• Water

• Oxygen

• Carbon dioxide

• Soil

Which part of the plant is mainly involved in photosynthesis?

• Roots

• Leaves

• Stem

• Flowers

What is the main purpose of photosynthesis?

• To produce flowers.

• To make food for the plant.

• To absorb water.

• To grow taller.

Which gas do plants take in during photosynthesis?

• Oxygen

• Carbon dioxide

• Nitrogen

• Hydrogen

What is the green pigment in leaves that helps in photosynthesis?

• Chlorophyll

• Hemoglobin

• Melanin

• Keratin

During photosynthesis, what do plants use to make food?

• Soil and water

• Sunlight, water, and carbon dioxide

• Oxygen and sunlight

• Water and oxygen

What happens to the oxygen produced during photosynthesis?

• It is used by the plant for growth.

• It is released into the air.

• It is stored in the roots.

• It is converted into water.