Chapter 7

Question 1

What are nutrients

Answer 1

They’re chemical substances obtained from food and used by the body for many different processes.

Question 2

What are the three key energy nutrients

Answer 2

• Fats
• Carbohydrates
• Proteins

Question 3

What’s the central role of carbohydrates in supplying energy?

Answer 3

The main function of carbohydrates ar etc provide materials to build cell membranes and to provide energy for use by cells

Question 4

What is the formula for when ATP separates to produce energy?

Answer 4

ATP + H2O - > ENERGY + ADP + P

Question 5

What are the two energy systems and what do they mean?

Answer 5

Aerobic (with oxygen)

Anaerobic (without oxygen)

Question 6

What are the three metabolic pathways

Answer 6

• ATP-PC
• Glycolysis
• Celular Respiration

Question 7

What is ATP-PC?

Answer 7

Draws on processes deep within the muscle fibre itself to allow quick, intense muscle contractions. ie. short sprints or pitching a baseball

Question 8

What is glycolysis?

Answer 8

This pathway involves the PARTIAL breakdown of glucose, with lactic acid as a by-product.
It allows for longer bursts of energy and does not involve oxygen

Question 9

What is cellular respiration?

Answer 9

It involves oxygen and the COMPLETE breakdown of glucose to yield a large amount of ATP