Human nutrition

Question 1

what factors does the amount of energy you consume depend upon?

Answer 1

Age, gender, pregnancy.

Question 2

what are the 6 nutrients needed in a person’s diet?

Answer 2

Water, carbohydrates, vitamins, minerals, proteins and fats.

Question 3

why do people need carbohydrates in their meals?

Answer 3

for energy

Question 4

What is the use of fats and oils in our body?

Answer 4

makes cells membranes, acts as and insulator.

Question 5

why are proteins needed?

Answer 5

for growth, making new cells and making antibodies.

Question 6

why is vitamin C needed in our body?

Answer 6

To make stretchy protein collagen.

Question 7

What disease is caused by deficiency of vitamin C?

Answer 7

Scurvy

Question 8

Why is Vitamin D needed in the body?

Answer 8

Helps calcium to be absorbed.

Question 9

which deficiency causes rickets?

Answer 9

Vitamin D

Question 10

why is calcium important for our body?

Answer 10

for strong bones and teeth.

Question 11

what deficiency disease is caused by lack of calcium?

Answer 11

brittle bones and teeth.

Question 12

why is Iron necessary for our body?

Answer 12

for making hemoglobin

Question 13

which lack of mineral causes anemia?

Answer 13

Iron

Question 14

which type of nutrient is good for the alimentary canal?

Answer 14

Fiber

Question 15

what is peristalsis?

Answer 15

muscular contractions that moves food through the alimentary canal.

Question 16

Why is water needed in our body?

Answer 16

To remove waste products.

Question 17

what is the process of food in the digestive system? (5 steps)

Answer 17

ingestion, digestion, absorption, assimilation and egestion.

Question 18

what are the 2 types of digestion that takes place in out body?

Answer 18

physical and chemical digestion.

Question 19

what is assimilation?

Answer 19

It is what happens to the nutrients, they are absorbed by the cells and used for energy.

Question 20

what are sphincter muscles?

Answer 20

rings of muscles that help close a tube.

Question 21

which enzyme is present in stomach?

Answer 21

protease(pepsin) to break down protein.

Question 22

what is the role of hydrochloric acid in the stomach?

Answer 22

kills harmful microorganisms.

Question 23

what does the pancreas make?

Answer 23

pancreatic juice.

Question 24

what is the role of the deodenum?

Answer 24

breaks down the partially digested food to useful nutrients.

Question 25

what enzymes does the pancreatic juice contain?

Answer 25

Lipase(to break down fat) ,amylase(breaks down starch), and trypsin

Question 26

what does the ileum do in the small intestine?

Answer 26

absorbs the nutrients.

Question 27

where is bile made?

Answer 27

In the liver.

Question 28

where is the bile stored?

Answer 28

In the gall bladder.

Question 29

what is epithelium?

Answer 29

A tissue that cover the surface in an animal.

Question 30

what does bile do?

Answer 30

It emulsifies fat.

Question 31

how thick is the epithelium in villi?

Answer 31

One cell thick.

Question 32

where is villi present?

Answer 32

in the small intestine.

Question 33

What does the lacteal do in the villi?

Answer 33

absorbs fatty acids and glycerol.

Question 34

what do the blood capillaries in the villi absorb?

Answer 34

absorbs vitamins, amino acids, minerals and water.

Question 35

what bring blood from the heart for the villi?

Answer 35

artery.

Question 36

what is glucose changed to for storage?

Answer 36

Glycogen.