Lecture 5

Question 1

Prostaglandins

Answer 1

usually start inflammation, causing vasodilation (blood vessels expand), swelling, stimulation of pain receptors, which sometimes may lead to muscle spasms in the local area.

Question 2

Leukotrienes

Answer 2

attract white blood cells to come into the affected area to fight a potential invader or parasite.

Question 3

Thromboxane

Answer 3

is produced by the damaged cells of a broken blood vessel, which starts a blood clotting response by attracting platelets.

Question 4

Functions of cholesterol in the body

Answer 4

1. production of steroid hormones
2. production of vitamin D
3. production of bile salts and acids
   intestine
4. structural molecule

Question 5

The function of Prostaglandins, Leukotrienes, and Thromboxanes is:

Answer 5

serve as local messengers

Question 6

Anti-oxidants that slow down oxidation are:

Answer 6

Bright colored fruits and vegetables

 Vitamin E - stops free radicals by absorbing the extra electron and trapping it
 Vitamin C - replenishes Vitamin E
 Beta carotene - absorbs extra electrons from free radicals
 Selenium - works as a cofactor, or helper, for the body’s own antioxidant enzymes
 Flavanoids
 Anthocyanins
 Resveratol
 Licopene

Question 7

Lipid Oxidation

Answer 7

Is the process in which free radicals “steal” electrons from the lipids