Photosynthesis

Question 1

Be specific

During photosynthesis, plants take in what?

Answer 1

• Carbon dioxide: Diffuses from air into plants through stomata.
• Water: Enters the root from soil through root hair cells by osmosis.

Question 2

Word and symbol

Photosynthesis equation

Answer 2

Carbon dioxide + water → Glucose + Oxygen

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

Question 3

Where does photosynthesis occur?

Answer 3

Inside plant’s chloroplasts, mainly occur in the leaf, small amount in green stem.

Question 4

What is Chlorophyll

Answer 4

Inside chloroplast, make leaves and stems green.

Question 5

List 2 main stages of photosynthesis reaction

Answer 5

Stage 1: Light dependent
Stage 2: Light independent

Question 6

What is Stage 1: light dependent

Answer 6

Energy transferred froom light splits water molecules into oxygen gas and hydrogen ions.

Question 7

What is Stage 2: Light Independent

Answer 7

Carbon dioxide gas and hydrogen ions to make glucose.

Question 8

What type of reaction is photosynthesis?

Answer 8

Endothermic reaction

Question 9

What’s this

Inside chloroplast, make leaves and stems green.

Answer 9

Chlorophyll

Question 10

What happens to the glucose produced in plants?

Answer 10

Glucose is used in respiration. Glucose not needed straight away are converted to starch. Starch provides a store of energy and can be used at night for respiration.