Aerobic and Anaerobic Respiration

Question 1

What is the correct equation for aerobic respiration in humans?

Answer 1

Glucose + Oxygen → carbon dioxide + water

Question 2

What is the correct equation for anaerobic respiration in humans?

Answer 2

glucose → lactic acid + energy

Anaerobic respiration releases less energy than aerobic respiration, which needs oxygen.

Question 3

What is one of the differences between aerobic and anaerobic respiration in humans?

Answer 3

Glucose is completely broken down in aerobic respiration but not in anaerobic respiration. This means that more energy is released by aerobic respiration.

Question 4

Where in the cell do most aerobic respiration reactions happen?

Answer 4

Most reactions in aerobic respiration happen in the mitochondria, although some happen in the cytoplasm.

Question 5

What is the correctly balanced equation for respiration?

Answer 5

C6H12O6 + 6O2 → 6CO2 + 6H2O

Question 6

What respiration can cause oxygen debt?

Answer 6

Anaerobic

Question 7

What products are made during anaerobic respiration in yeast?

Answer 7

Ethanol and Carbon Dioxide: Anaerobic respiration in yeast produces ethanol and carbon dioxide. It is called fermentation and is used in breadmaking and to make alcoholic drinks.

Question 8

What could be a simple lab test for carbon dioxide?

Answer 8

Limewater turning milky: Limewater turns milky when carbon dioxide is bubbled through it. This test is often used to show the release of carbon dioxide by respiring organisms.

Question 9

What observation would provide evidence for respiration in germinating beans?

Answer 9

A decrease in carbon dioxide concentration and an increase in temperature would provide evidence for respiration in germinating beans. Respiration releases energy, including heat.

Question 10

In an experiment to show respiration in living organisms, the air they need may be passed through sodium hydroxide solution first. Why is this done?

Answer 10

To absorb carbon dioxide from the air. In the experiment, air is passed through sodium hydroxide solution to absorb carbon dioxide. This means that any carbon dioxide detected in the last flask must have come from the organisms.

Question 11

What is respiration?

Answer 11

The release of energy from cells

Question 12

What does aerobic respiration use?

Answer 12

Oxygen

Question 13

Is aerobic respiration more efficient than anaerobic or no? Explain how you know this.

Answer 13

More efficient because it releases more energy.

Question 14

Where does aerobic respiration get its energy from?

Answer 14

Glucose

Question 15

What things can lead to aerobic respiration?

Answer 15

Long distance events eg. jogging

Question 16

Does anaerobic respiration use oxygen?

Answer 16

No

Question 17

Is anaerobic respiration more efficient than aerobic or no? Explain how you know this.

Answer 17

Less efficient because it releases less energy

Question 18

Where does anaerobic respiration occur?

Answer 18

In the cytoplasm

Question 19

Where does anaerobic respiration get its energy from?

Answer 19

Glucose

Question 20

What is aerobic respiration?

Answer 20

The complete breakdown of glucose

Question 21

Aerobic respiration waste:

Answer 21

CO2 + H2O

Question 22

Anaerobic respiration waste product:

Answer 22

Lactic acid/alcohol

Question 23

What is anaerobic respiration?

Answer 23

The complete breakdown of glucose

Question 24

What type of activities can endues anaerobic respiration to occur

Answer 24

Sprinting activities

Question 25

What causes oxygen debt?

Answer 25

Respiring so fast that you are unable to get enough oxygen (in debt) then resulting in a build up of lactic acid

Question 26

How do you pay back your oxygen debt?

Answer 26

• After exercise breathe deeply

- Gets oxygen into body - breaks down lactic acid