Ubit 5 Health and Social Care

Describe (P4) the role of energy in the body and explain (M1) the physiology of three named body system in relation to energy metabolism.

Introduction
I will try to describe the role of energy in the body and explain the physiology of three names body system in relation to energy metabolism. I will try explain where energy comes from, how the body uses energy, how many calories do we need, what is metabolism/catabolism and anabolism and also I will try explain cellular respiration aerobic/anaerobic is.

Most of the processes taking place inside our cells need energy in order to happen. Depending on our age, weight, the activities we will need a certain amount of calories. If somebody run every morning, will require more energy and calories per day. If somebody are an athlete also will require more calories per day. If the person sit, and work on a computer all day then that person don’t need many calories per day. Energy is measured in kilojoules (kJ).

|Age/ sex/ occupation of person |Daily energy requirement (kJ) |
|Newborn baby |2,000 |
|Child aged 2 |5,000 |
|Child aged 6 |7,500 |
|Girl aged 12-14 |9,000 |
|Boy aged 12-14 |11,000 |
|Girl aged 15-17 |9,000 |
|Boy aged 15-17