Daily Science Video Warm-Uo #4

What is the primary purpose of photosynthesis for plants?

• To create sugars

• To create energy for animals

• To absorb water from the soil

• To release carbon dioxide into the air

Which two substances are the main reactants needed for photosynthesis?

• Glucose and oxygen

• Carbon dioxide and water

• Sunlight and sugar

• Water and oxygen

What are the two main products created during photosynthesis?

• Carbon dioxide and water

• Glucose and oxygen

• Sunlight and carbon dioxide

• Water and glucose

What is the chemical formula for glucose, a sugar produced during photosynthesis?

• CO2

• H2O

• C6H12O6

• O2

How does carbon dioxide from the air enter the leaves of a plant?

• Through the roots

• Through tiny openings called stomata

• Through the stem

• Through the plant's vascular system

How does water enter a plant and travel to its leaves?

• Through the stomata and then the stem

• Through the roots and then the vascular system

• Through the leaves directly

• Through sunlight absorption

What provides the energy needed to start the reactions of photosynthesis?

• Water

• Carbon dioxide

• Sunlight

• Glucose

In which part of the plant cells do the reactions of photosynthesis occur?

• In the roots

• In the stem

• In the chloroplasts

• In the stomata

What happens to the glucose that plants produce during photosynthesis?

• It is released into the air

• It is stored or used to fuel plant activities

• It is converted back into carbon dioxide

• It is absorbed by the roots

How does oxygen, a byproduct of photosynthesis, leave the plant?

• Through the roots

• Through the stem

• Through the vascular system

• Through the stomata