survival needs

Question 1

what are survival needs?

Answer 1

factors that must be present to maintain life

Question 2

nutrients

Answer 2

usually via the diet are necessary for energy and cell structure & function

Question 3

1. carbohydrates

Answer 3

energy source

Question 4

2. proteins

Answer 4

vital for cell structure and function

Question 5

3. lipids (fats)

Answer 5

cell structure, protection (cushioning), insulation, and energy

Question 6

4. vitamins and minerals

Answer 6

necessary for chemical reactions often serving as coenzymes

Question 7

oxygen

Answer 7

necessary component of the chemical reactions in the body that release energy

Question 8

water

Answer 8

makes up 60-80% of the body’s weight and is necessary for maintaining the watery environment necessary for most chemical reactions in the body

Question 9

normal body temperature (37c/98.6f)

Answer 9

must be maintained for chemical reactions to progress normally

Question 10

what happens if body temperature is too low?

Answer 10

reactions slow down and may even stop

Question 11

what happens if body temperature is too high?

Answer 11

reactions happen too frantically and the end-products are distorted and useless

Question 12

atmospheric pressure

Answer 12

force exerted by air on the body; vital for breathing and gas exchange in the lungs

Question 13

what happens if atmospheric pressure is too low?

Answer 13

gas exchange is hampered and may be inadequate