Cholesterol - the slient killer.

1. TOPIC
CHOLESTEROL
PRESENTED BY KEHKASHAN SABIR
MPHIL CHEMISTRY

2. ASPECTS OF STUDY
• Introduction
• Types
• Functions
• Where is it found?
• What does cholesterol do to our bodies?
• Diseases

3. INTRODUCTION
• Cholesterol is found in every cell of the body and has
important natural functions when it comes to digesting
foods, producing hormones, and generating vitamin D.
• It is manufactured by the body but can also be taken in from
food.
• It is waxy and fat-like in appearance.

4. TYPES:
1)Low-density lipoprotein (LDL) - cholesterol carried by
this type is known as "bad" cholesterol.
2)High-density lipoprotein (HDL) - cholesterol carried by
this type is known as "good" cholesterol.

5. • HDL Contains a higher level of protein than
cholesterol.
• HDLs transport cholesterol from the tissues of the
body to the liver, so the cholesterol can be eliminated
in the bile.
• The higher the HDL cholesterol level, the lower the
risk of coronary artery disease.

6. • LDL contains Higher level of cholesterol than protein.
• LDLs tend to stick to damaged or inflamed areas of
blood vessel walls and form plaque buildup.
• The higher the LDL cholesterol level, the higher the
risk of coronary artery disease.

7. FUNCTIONS
• Cholesterol has four primary functions, without which we
could not survive, these are:
• contributing to the structure of cell walls.
• making up digestive bile acids in the intestine.
• allowing the body to produce vitamin D
• enabling the body to make certain hormones

8. WHERE IT IS FOUND ?
• Cholesterol is naturally found in our bodies and in the
food we eat.
• Every cell in our bodies makes cholesterol.
• The cholesterol we get from food, is absorbed into the
blood stream from the stomach and circulates with our
blood.

9. CHOLESTEROL IN THE BLOOD

10. WHAT DOES CHOLESTEROL DO TO OUR
BODIES?
• When too much cholesterol is in our blood stream, it can
accumulate around the lining of our arteries.
• “Together with other substances, it can form plaque, a
thick, hard deposit that can narrow the arteries and make
them less flexible.

11. DISEASES CAUSED BY HIGH
CHOLESTEROL
• Atherosclerosis:
It is a disease in which plaque builds up inside your
arteries. Plaque is made up of fat, cholesterol, calcium, and
other substances found in the blood. Over time, plaque
hardens and narrows your arteries.

13. • Heart Disease:
The blood carries oxygen to our heart, atherosclerosis
reduces the amount of blood flowing to our heart. If blood
stops flowing to the heart because of a blockage in the
arteries, a heart attack occurs.
Heart Attack:
A heart attack results from the blockage of an artery to
the heart, Can lead to death.