Biology-Topic1

Question 1

What makes up a lipoprotein?

Answer 1

Cholesterol+Triglycerides+Protein

Question 2

Bond between disaccharides and polysaccharides.

Answer 2

Glycosidic bond

Question 3

Bond between glycerol and fatty acids

Answer 3

Ester

Question 4

Treatments for cardiovascular disease

Answer 4

Antihypertensives- lower blood pressure (Beta Blockers)
Statins- lowers cholesterol
Anticoagulants- reduces blood clotting (warfarin, heparin)
Platelet Inhibitory Drugs- reduces blood clotting (aspirin)

Question 5

Uses of sugars in the body

Answer 5

DNA- ribose sugar
ATP- Contains ribose sugar
Glycogen- animal energy storage
Lactose- in milk for growth
Glucose- respiration, for cell function

Question 6

Difference between between B and A glucose

Answer 6

OH and H opposite ways round on C1

Question 7

Factors affecting cardiovascular disease

Answer 7

Smoking- carcinogens, incr BP
Diet- saturated fats bad lead to atheroma 
High BP- more likely to damage
Genetics- likely to have higher BP
Age- atheromas build up over time

Question 8

What are valves doing at end of atrial systole?

Answer 8

AV valves open- blood flows to ventricles

SL valves shut- pressure builds up in ventricles

Question 9

How is the heart myogenic?

Answer 9

Impulses to contract originate from within the muscle.

SAN sends impulses without having to receive impulses