Pages in this set

Page 1

Preview of page 1





2011/20112


Shivani Kotecha




[AS HUMAN
BIOLOGY
UNIT 1]

Page 2

Preview of page 2
Contents
Balanced Diet
Glycaemic index and glycaemic load
Vitamins and mineral salts
Bacteria in the gut
Water
Diet and disease
Carbohydrates
Proteins
Lipids
Polymers and digestion
Chromatography
Enzymes and how they work
Factors affecting enzyme activity
Medical uses of enzymes
Problems with enzymes
The lungs and ventilation
Gas exchange
Plasma…

Page 3

Preview of page 3
T cells
Antibodies and vaccination
Monoclonal antibodies
The heart
How the heart beats
Blood vessels
Atheroma
Factors affecting CHD
Treating CHD
Deep vein thrombosis
Capillaries and exchange

Page 4

Preview of page 4

Page 5

Preview of page 5
Balanced Diet

Balanced Diet
A balanced diet should be balanced in terms energy and food groups. It should have the
right amounts of fibre, water, carbohydrates, fats, proteins, vitamins and minerals
There are three groups of sugars; intrinsic, extrinsic and milk
Intrinsic sugars; these are sugars contained within the cells…

Page 6

Preview of page 6
Glycaemic index and glycaemic load

Glycaemic Index

A measure of the effect 50g of food on blood glucose level, and how quickly blood
glucose is raised, compared to 50g of glucose. It is given out of a figure of a 100, 50g of
glucose has the highest possible glycaemic index,…

Page 7

Preview of page 7

Page 8

Preview of page 8
Vitamins and mineral salts


Vitamins

Organic molecules needed by the body in small amounts
Interact with important enzymes involved in cell processes
Vitamin D found in egg yolk, oil fish and meat, as well as being made in the body from
ultraviolet rays emitted by the sun
Vitamin D can…

Page 9

Preview of page 9

Page 10

Preview of page 10
Bacteria in the gut


Bacteria in the gut

A wide range of bacteria is food in the gut and most is not harmful
Vitamin K is needed by the liver to synthesis the enzyme thrombin Thrombin is the
enzyme needed for blood clotting
Humans cannot synthesis vitamin K so it…

Comments

Cyrus

Report

Is there a revision notes fir unit 2?

Similar Human Biology resources:

See all Human Biology resources »See all resources »