Definitions 5

Question 1

Photosynthesis

Answer 1

Process by which plants manufacture carbohydrates from raw materials, using light as a source of energy

Question 2

Excretion in humans

Answer 2

The removal of
• substances in excess or requirement
• waste products of chemical reactions in the body
• toxic materials

Question 3

Deamination

Answer 3

The removal of the nitrogen part of amino acids to form urea

Question 4

Kidney tubules

Answer 4

Thin, hollow tubes through whihc the filtrate travels in the nephron and where selective reabsorption occurs

Question 5

Nephrons

Answer 5

Structure in the kidney that liquid and disolved components are filtered into and where selective reabsorption occurs

Question 6

Respiration

Answer 6

Chemical reactions that break down nutrients in living cells to release energy

Question 7

Aerobic respiration

Answer 7

Chemical reactions that use oxygen to break down nutrients in livng cells to release energy

Question 8

Anaerobic respiration

Answer 8

Chemical reactions in cells that break down nutrients to release energy without using oxygen