Unit 1

Question 1

Carbons importance for life?

Answer 1

all living organisms are built by carbon based molecules

Question 2

hydrogens importance for life?

Answer 2

used in all physiological functions, pH, can break down molecules

Question 3

oxygens importance for life?

Answer 3

cell processes (individual molecule or compound), attract electrons, break down molecules

Question 4

nitrogens importance for life?

Answer 4

proteins and nucleic acids (cell structure, storage, communication, hormones

Question 5

phosphorus importance for life?

Answer 5

nucleic acids and lipids, cell storage communication energy and protection

Question 6

oxygen is found here (naturally and abiotically)

Answer 6

atmosphere, water

Question 7

hydrogen is found here (naturally and abiotically)

Answer 7

water and hydrocarbons (coal and gasoline)

Question 8

nitrogen is found here (naturally and abiotically)

Answer 8

soil, atmosphere

Question 9

phosphorus is found here (naturally and abiotically)

Answer 9

waste, rocks and atmosphere

Question 10

carbon is found here (naturally and abiotically)

Answer 10

rocks, atmosphere, fossil fuels, water and soil

Question 11

carbon gets in

Answer 11

carbohydrates and proteins

Question 12

hydrogen gets in

Answer 12

breathing and water

Question 13

oxygen gets in

Answer 13

breathing and water

Question 14

nitrogen gets in

Answer 14

bacteria, ammonia, air

Question 15

phosphorus gets in

Answer 15

eating plants, meats (fatty acids)