Other pages in this set

Page 2

Preview of page 2

Page 3

Preview of page 3

Here's a taster:

Biology Unit 1 ­ Section 3.1.…read more

Page 4

Preview of page 4

Here's a taster:

Obesity ­ if someone is overweight the risk is higher
· Physical activity ­ more of this lowers risk
© myrevisionnotes Page 1…read more

Page 5

Preview of page 5

Page 6

Preview of page 6

Page 7

Preview of page 7

Here's a taster:

Sunlight ­ more someone is exposed to sunbeds or sunlight (without sun cream) the greater
the risk
Factors that increase the risk of CHD
· If you smoke
· If you have high blood pressure
· If your blood cholesterol is high
· If you're obese
· Diet ­ if you have a high amount of salt this increases blood pressure which increases the
risk and if you have a high amount of saturated fatty acids this increases blood cholesterol
which increases risk
· If…read more

Page 8

Preview of page 8

Page 9

Preview of page 9

Page 10

Preview of page 10

Here's a taster:

Biology Unit 1 ­ Section 3.1.2
Main parts of the digestive system
(image from teachpe.com)
Roles of the major parts of the digestive system
· Mouth ­ starts carbohydrate digestion by adding amylase in saliva to it braking large
carbohydrates down into maltose
· Stomach ­ contains enzymes (proteases) which digest proteins breaking them down into
amino acids. It also produces a lot of mucus to prevent the stomach itself from getting
digested by its own enzymes
· Small intestine ­ where most digestion happens.…read more


Nasir AL Shamari



Should work now..

Similar Biology resources:

See all Biology resources »See all resources »