Component 1: Soc 18

Question 1

What is the formula for aerobic and anaerobic respiration?

Answer 1

Aerobic - oxygen + glucose = energy + water + carbon dioxide
Anaerobic - glucose = energy + lactic acid

Question 2

What is the process of aerobic and anerobic respiration?

Answer 2

Aerobic - Oxygen + glucose are brought to the muscles in the blood, the waste products water + carbon dioxide are absorbed into the blood and taken away
Anaerobic - Glucose are brought to the muscles in the blood, the waste product lactic acid is absorbed into the blood and taken away (oxygen debt)

Question 3

What do muscles need to work (exluding oxygen)?

Answer 3

They need energy to work, this energy comes from food, which is mainly converted to glucose by the body. The muscles and liver store glucose as glycogen. This then can be converted back to glucose for the use during respiration

Question 4

What are the two main energy sources?

Answer 4

Fats - broken down into fatty acids and delivered to cells, they provide enrgy for moderate intensity exercise for long periods.
Carbohydrates - the main energy source for both high-intensity (anaerobic) exercise and moderate-intensity (aerobic) exercise.

Question 5

Explain the storage of carbohydrates and simple/complex carbohydrates.

Answer 5

They’re stored in small amounts, enough for a day or two, which is why they’re the main energy source. They’re broken down into glucose, delivered to the cells via the liver.
Simple - Quick fix of energy
Complex - Slow releasing and long lasting