Chapter 2 / The Human Body

Question 1

What are the 4 main components of the human body ?

Answer 1

• water
• calcium (bones)
• iron (blood)
• phosphore (skin)

Question 2

How do we loose water ?

Answer 2

• Sweating
• Respiration
• Skin

Question 3

What is homeostatis ?

Answer 3

Tendency of the internal environment of the body to remain constant in spite of varying external conditions

Question 4

What are the 3 homeostatic constants ?

Answer 4

• 37°c
• pH of 7.35
• 0.1% of sugar in the blood