Respiration

Question 1

Respiration

Answer 1

a chemical reaction which happens in every cell in the body to produce energy from nutrient molecules

Question 2

What is the energy from respiration used for?

Answer 2

Muscle contraction Protein synthesis Cell division active transport Keeping body temp. constant

Question 3

Aerobic respiration

Answer 3

The chemical reactions in cells that use oxygen to break down nutrient molecules to release energy

Question 4

Aerobic respiration equation

Answer 4

Glucose + oxygen –> Carbon Dioxide + water

Question 5

Anaerobic respiration

Answer 5

The chemical reactions in cells that break down nutrient molecules to release energy without using oxygen.

Question 6

Anaerobic respiration equation

Answer 6

In humans - glucose –> lactic acid In yeast and plants - glucose –> alchohol + carbon dioxide

Question 7

Anaerobic respiration balanced equation

Answer 7

C₆H₁₂O₆ –> 2C₂H₅OH + 2CO₂

Question 8

What is oxygen debt?

Answer 8

• Caused by anaerobic respiration
• To repay this, lactic acid must be transported to th liver where it is broken down into CO₂ and H₂O by oxygen
• This is why after excercise, frequent and deep breaths take place to remove the oxygen dept