Diet And Digestion Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

What 5 things are necessary for life?

A
Food
Water
Warmth
Shelter
Oxygen
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the word equation for photosynthesis?

A

Sunlight+carbon dioxide+water=oxygen+glucose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is a balanced diet?

A

A balanced diet is a diet containing components listed below in the correct proportions.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Why do we need carbohydrates?

A

We need carbohydrates for energy and you find it in Potatoes, pasta, sugary foods.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Why do we need protein?

A

For muscles and growth. Found in diary products, red meat, chicken fish.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Why do we need fat?

A

For energy and insulation. Found in butter and cream.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Why do we need fibre?

A

To prevent constipation. Found in brown rice, brown bread and cereal.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Why do we need Water?

A

It allows chemical reactions to occur. It’s found in most foods.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Why do we need vitamin c?

A

To prevent scurvy. Found in citrus fruits.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Why do we need vitamin D?

A

It’s needed to prevent scurvy.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Why do we need calcium?

A

For healthy teeth and bones.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Why do we need iron?

A

O make haemoglobin for carrying oxygen. It’s found in red meat.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is starvation?

A

A severe reduction in vitamin, nutrient and energy intake. I.e not enough food.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is malnutrition?

A

“The lack of sufficient nutrients to maintain healthy boldly functions.”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the test for starch?

A

Add iodine solution.If starch is present the colour will change from orange to blue/black.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the test for Sugars?

A

Benedictus solution. Heat is needed. If sugars are present the colour will change from blue to brick red.

16
Q

What is the test for protein?

A

Biurets test. Heat is not needed. The colour should change from clear to purple.

17
Q

What is the test for vitamin c?

A

DCPIP is used. Heat is not needed. The colour should change from blue to colours.

18
Q

What are the four types of tooth and what are their function?

A

Incisor: For Biting: 8 of them.
Canine:For tearing: 4 of them.
Premolar: Biting and chewing: 8 of them.
Molar:Chewing: 12 of them.

19
Q

What are the two types of dental disease?

A
  1. Gum disease

2. Tooth decay (dental caries)

20
Q

What is the equation for tooth decay?

A

Sugar(+plaque&bacteria)➡Acid➡Tooth decay

21
Q

What are the 3 main ways of preventing tooth decay?

A

1.Avoiding/reducing sugar intake

22
Q

What is the large intestine also known as?

A

The colon.

23
Q

What are the two parts of the small intestine known as?

A

The duodenum and the ileum.

24
Q

What is digestion and what is its function?

A

The basic function of digestion is to break down large molecules into small molecules which are absorbed into the blood and transported around the body.The small molecules are used by the body’s cells for growth, energy and repair.

25
Q

Define physical digestion.

A

Physically breaking down food into smaller pieces (e.g chewing) by teeth and contractions of the stomach. Increases surface area of food available to enzymes.

26
Q

Define chemical digestion.

A

Digestive enzymes break large food molecules into smaller,simpler molecules.

27
Q

What is peristalsis?

A

Food travels through the digestive system from mouth to anus by peristalsis. Peristalsis occurs when muscle contracts behind the ball of food, pushing it along.

28
Q

What part of our diet is important in helping peristalsis and preventing constipation?

A

Fibre.

29
Q

What are the five steps of feeding?

A
  1. Ingestion- food taken into the gut via the mouth.
  2. Digestion- food is broken down into small, soluble substances.
  3. Absorption- products of digestion taken into blood and transported around the body.
  4. Assimilation- products of digestion are taken from blood into cells.
  5. Egestion- waste material is passed through the anus.