Excretion/ The Excretory System

Question 1

Excretion

Answer 1

The removal of waste products of metabolism from the body

Question 2

Ectotherm

Answer 2

Gain or lose heat from or to their external environment

Question 3

Endotherms

Answer 3

Generate their own heat from metabolic reactions

Question 4

Nephron

Answer 4

The structural and functional unit of the kidney

Question 5

Glomerulus

Answer 5

Capillary network

Question 6

Filtration

Answer 6

In the outer cortex, small molecules like glucose, amino acids, water, urea and salts filter out of the blood into narrow tubules

Question 7

Reabsorption

Answer 7

Blood vessels reabsorb back useful nutrients from the tubules. Urea, excess salts and water, are allowed to continue down the tubule and on to the bladder

Question 8

Bowman’s capsule

Answer 8

A cup - shaped funnel

Question 9

Osmoregulation

Answer 9

The kidney regulates the amount of water in the body by varying the amount of urine produced

Question 10

Secretion

Answer 10

That some substances pass from the blood into the nephron

Question 11

Osmoregulation

Answer 11

The kidney regulates the amount of water in the body by varying the amount of urine produced
An example of homeostasis