Pages in this set

Page 1

Preview of page 1

Page 2

Preview of page 2
and Energy

Module 2: Excretion

Excretion is the removal of metabolic waste from the body that is the removal, from the body, of by
products or unwanted substances from normal cell processes.

Two products that are made in very large amounts such as CO2 and nitrogen containing compounds

Page 3

Preview of page 3
One of the other functions of the liver is the production

Page 4

Preview of page 4
of bile. This is released into the bile caniculous which then joins together to form bile duct which
transport bile to the gall bladder.

Liver cells
Hepatocytes appear to be relatively unspecialised. They have a simple cuboidal shape with microvilli.
But there functions include protein synthesis, transformation and storage of…

Page 5

Preview of page 5
Detoxification of alcohol

Page 6

Preview of page 6
Brocken down by ethanol dehydrogenase. From ethanol makes entahnal then makes acetyl
coenzyme a which enters into the process of respiration.

The Kidney

The structure of the kidney

The kidney nephron

Blood flows into glomerulus from afferent arteriole which is larger than the efferent arteriole. The
pressure in the…

Page 7

Preview of page 7
to be forced into capsule.

Page 8

Preview of page 8

Page 9

Preview of page 9

Page 10

Preview of page 10
Adaptation to allow ultrafiltration:

Endothelium have narrow gaps between them.
Basement membrane consists of fine mesh of collagen fibres and act as a filter.
Podocytes ensure there are gaps between cells and fluid from blood can pass between the

What is filtered out of the blood?
Amino acids…


No comments have yet been made

Similar Physical Education resources:

See all Physical Education resources »