Respiration

Question 0

Does aerobic respiration need oxygen or not?

Answer 0

Yes it needs oxygen

Question 1

What is respiration in a sentence?

Answer 1

Respiration is the process of releasing energy from glucose in every cell

Question 2

What is the word equation for aerobic respiration in animals?

Answer 2

Glucose + oxygen—-> carbon + water

Dioxide

Question 3

Why is aerobic respiration the most efficient way to release energy from glucose?

Answer 3

Because it produces the most energy and it it the way the body usually respires

Question 4

Does anaerobic respiration use oxygen?

Answer 4

No

Question 5

What is the word equation for anaerobic respiration?

Answer 5

Glucose——> lactic acid

Question 6

Why does the body start anaerobically respiring when exercising sometimes?

Answer 6

Because the body can’t get enough oxygen so it respires anaerobically

Question 7

Why is anaerobic respiration less efficient that aerobic respiration?

Answer 7

Because it produces less energy

Question 8

What are some problems with anaerobic respiration?

Answer 8

Lactic acid is produced
Lactic acid builds up in muscles
Causes pain or cramps

Question 9

What is the word equation for anaerobic respiration in plants?

Answer 9

Glucose —-> ethanol + carbon dioxide

Question 10

Wha colour is hydrogen carbonate to start off with?

Answer 10

Orange

Question 11

What colour does hydrogen carbonate change to when carbon dioxide levels increase ?

Answer 11

Yellow

Question 12

Describe an experiment to investigate respiration using beans

Answer 12

1. Put some dried beans in water for few days until they start germinating
2. Boil some beans to be the control variable
3. Put hydrogen carbonate solution into 2 test tubes
4. Put boiled beans in one test tube and germinating beans in other on gauzes
5. Seal test tubes with bung
6. Leave for an hour
7. Observe colour of hydrogen carbonate

Question 13

What is the result of the respiration experiment using beans?

Answer 13

The boiled beans- the hydrogen carbonate solution will be orange as the beans can’t respire so no carbon dioxide is produced

Germinating beans- the hydrogen carbonate solution turns
Yellow as the beans are respiring producing carbon dioxide

Question 14

How do you do an experiment to measure the heat produced in respiration?

Answer 14

1. Boil son beans and put some beans in water for a few days until they start to germinate
2. Add the boiled beans to a vacuum flask and the germinating beans to a vacuum flask( make sure there is still air so they can respire)
3. Put thermometer in each flask
4. Seal top with cotton wool
5. Record temperature daily for a week

Results- germinating beans respire producing beat unlike control (boiled beans)