Unit 2 Test

Question 0

What is appetite?

Answer 0

The psychological drive for food

Question 1

What is hunger?

Answer 1

The physiological drive for food.

Question 2

Which organ triggers feelings of hunger and satiation?

Answer 2

The hypothalamus

Question 3

What effect do different macronutrients have on hunger?

Answer 3

Some make you feel more satiated than others.

Question 4

What macromolecule has the highest satiety level?

Answer 4

Proteins

Question 5

What macromolecule has the lowest satiety lever?

Answer 5

Carbohydrates

Question 6

What is digestion?

Answer 6

When large molecules are broken down in to smaller molecules

Mechanical
Chemical

Question 7

What is absorption?

Answer 7

When nutrients are absorbed in to the intestinal walls

Question 8

What is elimination?

Answer 8

When waste products are excreted from the body through the anus

Question 9

What is the difference between peristalsis is segmentation?

Answer 9

Periastalsis is the slow movement of food through the GI tract

Segmentation is movement as well but is the mixing of chyme and material in the intestine.

Question 10

What is the role of gastrin?

Answer 10

It is secreted by the stomach lining cells and it stimulates the gastric glands to produce gastric juice.

Question 11

What are the two types of cells in the gastric glands?

Answer 11

Parietal cells

Chief cells

Question 12

What do parietal cells do?

Answer 12

Secret HCL and intrinsic factor

Question 13

What do Chief cells do?

Answer 13

Secret pepsinogen and gastric lipase.

Question 14

What dose gastric juice contain?

Answer 14

(HCL)
Pepsin
Gastric lipase
Intrinsic factor

Question 15

What dose HCL do?

Answer 15

Denatures proteins and activates pepsin

Question 16

What dose pepsin do?

Answer 16

It’s the enzyme to digest protein

Found in the pancreas

Question 17

What dose gastric lipase do?

Answer 17

Enzyme to digest fats

Found in the stomach

Question 18

What dose intrinsic factor do?

Answer 18

Protein to absorb vitamin B12

Question 19

What is the role of bicarbonate?

Answer 19

It neutralizes the acid and chyme

Question 20

What dose salivary amylase do?

Answer 20

Digest carbohydrates

Found in the mouth

Question 21

What are the key hormones that aid in digestion?

Answer 21

Gastrin
Secretin
Cholecystokinin (CCK)
Gastric inhibitory peptide (GIP)

Question 22

What dose gastrin do?

Answer 22

Stimulates the secretion of HCL and pepsinogen

Question 23

What dose secretin do?

Answer 23

Stimulates pancreatic bicarbonate

Question 24

What dose (CCK) do?

Answer 24

Stimulates secretion of pancreatic digestive enzymes Stimulates gallbladder contraction

Question 25

What dose GIP do?

Answer 25

Stimulates insulin release

Question 26

What are the accessory organs to digestion?

Answer 26

Liver Pancreas Gallbladder

Question 27

What dose the gallbladder do?

Answer 27

Stores bile

Question 28

What does the pancreas do?

Answer 28

Manufacture store and secret digestive enzymes Insulin and glucagon, Bicarbonate

Question 29

What dose the liver do?

Answer 29

Synthesized chemicals for metabolism Receives products of digestion via the portal vein

Question 30

What are a few monosaccharides?

Answer 30

Glucose, fructose, galactose

Question 31

What are a few disaccharides?

Answer 31

Lactose maltose and sucrose

Question 32

What are characteristics of glucose?

Answer 32

Most abundant sugar molecule

Question 33

What is a characteristic of fructose?

Answer 33

Sweetest natural sugar

Question 34

What is a characteristic of galactose?

Answer 34

Dose not occur alone in foods

Question 35

What two monosaccharides make lactose

Answer 35

Glucose and galactose

Question 36

What two monosaccharides make maltose?

Answer 36

Glucose and glucose

Question 37

What two monosaccharides make succors?

Answer 37

Glucose and fructose

Question 38

Where is glycogen stored?

Answer 38

The liver and muscles

Question 39

What is a lactose intolerance?

Answer 39

Lack of the suffice t enzyme to break down foods containing lactose

Question 40

What causes carbohydrate digestion in the mouth pancreas and liver?

Answer 40

Mouth- salivary amylase Pancreas- pancreatic amylase Liver- breaks down monosaccharides to glucose

Question 41

List the hormones that regulate blood glucose levels.

Answer 41

Epinephrine Norepinephrine Increase glycogen breakdown in the liver to release glucose in to the blood Cortisol Growth hormone

Question 42

What is the glycemic index?

Answer 42

How quickly a food can raise ones blood glucose level

Question 43

What is the glycemic load?

Answer 43

The potential effect a food has on ones blood glucose level

Question 44

What is glucose?

Answer 44

The primary source of energy for the brain and body

Question 45

What is ketosis?

Answer 45

The break down of fats due to fasting

Question 46

What is ketosis?

Answer 46

An increase of blood acidity levels Bad breath

Question 47

What is gluconeogenesis?

Answer 47

Occurs when a diet is diffident an carbohydrates When the body turns amino acids in to glucose

Question 48

What is type 1 diabetes?

Answer 48

When you body can not produce enough insulin

Question 49

What is type 2 diabetes?

Answer 49

When your body develops an insulin insensitivity No longer produces insulin or enough