Lecture 49- Digestive System Part 4

Question 1

What do lingual and gastric lipase do?

Answer 1

Break down triglycerides into fatty acids

Question 2

What do fatty acids stimulate in order to release bile from gall bladder and pancreatic lipase?

Answer 2

CCK

Question 3

What is the purpose of bile emulsifying triglycerides?

Answer 3

This action increases the surface area of the fat, making it easier for digestive enzymes (lipases) to break down fats

Question 4

What do micelles allow for?

Answer 4

Allow fatty acids to be absorbed into intestinal cells

Question 5

Where are fatty acids rebuilt into triglycerides?

Answer 5

Chylomicrons

Question 6

What are chylomicrons packaged as?

Answer 6

Very low density lipoprotein

Question 7

GO MEMORIZE THE SLIDE ON TYPES OF LDLs AND PATHWAY

Answer 7

Chylomicron
VLDL
IDL
LDL
HDL

Question 8

GO MEMORIZE THE SLIDE ON TYPES OF LDLs AND PATHWAY

Answer 8

Chylomicron
VLDL
IDL
LDL
HDL

Question 9

What are the eight treatments for atherosclerosis?

Answer 9

1. Take statins
2. Consume unsaturated fats
3. Reduce overall calories
4. Reduce stress
5. Reduce nicotine
6. Exercise
7. 1 oz of alcohol a day
8. Baby asprin

Question 10

What are excess proteins converted into?

Answer 10

Fats

Question 11

What are the roles of HCl and pepsin in protein metabolism?

Answer 11

HCl unfolds proteins

Pepsin breaks down proteins into amino acids

Question 12

What is the amino group excreted as since we cannot use it for energy?

Answer 12

Urea

Question 13

What is the difference between meat and plant proteins

Answer 13

Meat proteins are complete and have all the amino acids, whereas plant proteins do not

Question 14

What is kwashiorkor?

Answer 14

Kwashiorkor is a severe form of malnutrition characterized by a deficiency of dietary protein, particularly in children

Question 15

What are some of the signs and effects of kwashiorkor?

Answer 15

1. High rate of infection
2. Pot belly from worms
3. Fatty liver
4. Edema (fluidy tissues)
5. Motor/cognitive impairment

Question 16

After not eating for 4 hours, the waiter brings out your food. This would result in an increase in the secretion of all of the following EXCEPT:

Alkaline mucus
Salivary protease
Ghrelin
Lysozymes

Answer 16

Salivary protease- does not exist in the stomach