Investigating Respiration 1.11

Question 1

What are reactants?

Answer 1

Starting substance in a chemical reaction

Question 2

How do plants make glucose?

Answer 2

With a process called photosynthesis

Question 3

What is photosynthesis?

Answer 3

Process carried out by green plants to make their food: energy from sunlight, carbon dioxide and water are used to produce glucose and oxygen.

Question 4

Can you see respiration happening?

Answer 4

No

Question 5

How do you know that respiration happens?

Answer 5

Experiments can provide evidence that respiration occurs

Question 6

Water isn’t a product of respiration. True or False.

Answer 6

False

Question 7

What is a product?

Answer 7

Substance made in a chemical reaction

Question 8

What does ‘germinating’ mean?

Answer 8

When a seed is beginning to grow

Question 9

What does soda lime do to carbon dioxide?

Answer 9

They absorb carbon dioxide from the air around the seeds.

Question 10

What do the seeds produce?

Answer 10

Carbon dioxide

Question 11

What does carbon dioxide do to limewater?

Answer 11

It turns the limewater in flask D cloudy

Question 12

Is carbon dioxide a product of respiration?

Answer 12

Yes

Question 13

What is very vital for plants?

Answer 13

Photosynthesis and respiration

Question 14

What is the word equation for photosynthesis?

Answer 14

Carbon dioxide + water ➡️ glucose + oxygen

Question 15

How do plants photosynthesise?

Answer 15

By using sunlight energy. This is a way of ‘trapping’ energy.