inorganic ions + elements of molecules (c,p)

Question 1

Role of calcium ions - Ca+

Answer 1

• Nerve impulse transmission

- Muscle contraction

Question 2

sodium ions Na+

Answer 2

• nerve impulse transmission

- kidney function

Question 3

potassium ions K+

Answer 3

• nerve impulse transmission

- stomatal opening

Question 4

hydrogen ions H+

Answer 4

• catalysis of reactions

- pH determination

Question 5

ammonium ions NH4+

Answer 5

-production of nitrate ions by bacteria

Question 6

nitrate ions NO3-

Answer 6

-nitrogen supply to plants for amino acid + protein formation

Question 7

hydrogen carbonate ions HCO3-

Answer 7

• maintenance of blood pH

Question 8

chloride ions Cl-

Answer 8

-balance positive charge of sodium + potassium ions in cells

Question 9

phosphate ions PO4 3-

Answer 9

• cell membrane formation
• nucleic acid and ATP formation
• bone formation

Question 10

hydroxide ions OH-

Answer 10

• catalysis of reactions

- pH determination

Question 11

what do carbohydrates contain?

Answer 11

carbon, hydrogen, oxygen - C,H,O

Question 12

what do lipids contain?

Answer 12

carbon, hydrogen, oxygen - C,H,O

Question 13

what do proteins contain?

Answer 13

carbon, hydrogen, oxygen, nitrogen, sulphur - C,H,O,N,S

Question 14

what do nucleic acids contain?

Answer 14

carbon, hydrogen, oxygen, nitrogen, phosphorus - C,H,O,N,P

Question 15

what are polymers?

Answer 15

Biological molecules are often polymers. Long-chain molecules of linked monomers in repeating pattern.