Respiration

Question 1

What is respiration

Answer 1

The process of transferring energy from glucose

Question 2

Where does energy come from

Answer 2

Food

Question 3

How is energy transferred

Answer 3

Respiration

Question 4

What happens to energy transferred by respiration

Answer 4

It can’t be used by cells so it makes a substance called ATP

Question 5

What does ATP ado

Answer 5

Stores energy needed for cell processed

Question 6

How does atp work

Answer 6

When. A cell needs energy atp molecules are broken down and energy is released

Question 7

What are the two types of respiration

Answer 7

Anaerobic and aerobic

Question 8

What is aerobic respiration

Answer 8

Respiration that happens WITH oxygen

Question 9

What does aerobic respiration produce

Answer 9

32 molecules of atp per molecule of glucose

Question 10

What is the word equation for aerobic respiration

Answer 10

Glucose + oxygen goes to carbon dioxide + water

Question 11

What is the chemical equation for aerobic respiration

Answer 11

C6h12o6 goes to 6co2 + 6h2o

Question 12

What is anaerobic respiration

Answer 12

When you do vigorous exercise your body can’t supply enough oxygen to your muscles for aerobic respiration so your muscles have to start respiring anaerobically too

Question 13

What does anaerobic respiration produce

Answer 13

Less energy, 2 molecules of atp per glucose molecule

Question 14

What happens during anaerobic respiration

Answer 14

The glucose is only partially broken down and lactic acid is also produced. The lactic acid builds up in the muscles

Question 15

What is the word equation for anaerobic respiration

Answer 15

Glucose goes to lactic acid

Question 16

How can you detects carbon dioxide production

Answer 16

With an hydrogen carbonate indicator.

Question 17

What colour is hydrogen carbonate indicator

Answer 17

Orange to start and changes to yellow in the presence of carbon dioxide

Question 18

How do you test for co2 with hydrogen carbonate indicator

Answer 18

1. Soak dried beans in water for two days, they will germinate and respire
2. Boil a similar sized second bunch of dried beans. This will kill the beans so they can’t respire and they will be the control.
3. Put the same amount of hydrogen carbonate indicator in two test tubes
4. Place a platform made of gauze into both test tubes and place the beans on this
5. Seal the test tubes with a rubber bung
6. Leave both test tubes for 1 hours
7. After one hour the co2 in the germinating beans should have had an affect on the hydrogen carbonate indicator and turned it yellow

Question 19

How can you measure temperature change produced by respiration

Answer 19

1. Prepare two sets of beans
2. Add each set of beans to a vacuum flask making sure there’s air left in the flasks so the beans can respire aerobically
3. Place a thermometer in each flask and record the temp daily for a week
4. Repeat the experiment 10 times.
5. When the germinating beans the flasks temp will increase compared to the control.