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G1 Science (Secondary 2) > 10) Getting Energy and Nutrients from Food > Flashcards

10) Getting Energy and Nutrients from Food Flashcards

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Biology 101 flashcards
1
Q

What are the 2 reasons that living things need food?

A
  1. provides us with energy to do work
  2. build new cells and repair damaged cells
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2
Q

What are the three main groups of food we should have in our diet?

A

nutrients, water and dietary fibre

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3
Q

Name the 4 main groups of nutrients in food.

A

carbohydrates
protein
fats
vitamins and minerals

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4
Q

Name one health risk associated with undereating.

There are two health risks.

A
  1. lack of energy
  2. poor growth
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5
Q

Name one health risk associated with overeating.

There are 3 health risks.

A
  1. obesity
  2. diabetes
  3. heart dieseases
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6
Q

State three ways how food wastage can be reduced.

A
  1. buying only the amount of food we need
  2. saving leftovers for the next meal
  3. storing food properly to prevent it from spoiling
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7
Q

What is the purpose of digestion?

A

To break down large food substances into smaller food substances which can be absorb by the body

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8
Q

What is physical digestion?

A

When we chew, we cut large pieces of food into smaller pieces.

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9
Q

What is chemical digestion?

A

The chemical breakdown of large food substances into smaller food substances.

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10
Q

What is the purpose of an enzyme?

A

Enzymes are substances found in digestive juices to speed up chemical digestion.

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11
Q

What are the 6 main body organs involved in digestion of food?

You can also think of this as how food travels through the body.

A

mouth, gullet, stomach, small intestines, large intestines, anus

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12
Q

What is the name of the part label A?

A

mouth

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13
Q

What is the name of the part label B?

A

gullet

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14
Q

What is the name of the part label C?

A

stomach

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15
Q

What is the name of the part label D?

A

anus

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16
Q

What is the name of the part label E?

A

large intestines

17
Q

What is the name of the part label F?

A

small intestines

18
Q

Starch (carbohydrates) turns into [ ] during digestion.

A

sugar

19
Q

What is the function of our teeth in digestion?

A

To break large pieces of food into smaller pieces

aka physical digestion

20
Q

What is the function of the gullet in digestion?

A

To transfer food from the mouth to the stomach

21
Q

Proteins turns into [ ] during digestion.

A

amino acids

22
Q

In which organ does protein start to get digested?

A

stomach

23
Q

What does the acid in the stomach do?

There are 2 functions of the acid.

A
  1. Helps enzymes to work
  2. Kills bacteria in food
24
Q

What is the other function of the small intestines beside digesting food?

Small intestines digests all carbohydrates, proteins and fats.

A

It absorbed all the digested food.

25
Q

There is no digestion in the large intestines. What is absorbed by the large intestines?

There are 2 types of substances absorbed by the large intestines.

A

water and mineral

26
Q

What is the name of the body part in which faeces (undigested food) leaves the body?

A

anus

27
Q

What is the name of the process in which digested food releases energy with the help of oxygen?

Starts with the letter ‘r’

A

respiration

28
Q

What is the purpose of the respiratory system (lungs in particular) in digestion?

A

Takes in air and allow oxygen to enter the blood

29
Q

What is the purpose of the circulatory system (blood in particular) in digestion?

A

carries digested food and oxygen to all parts of the body

30
Q

During respiration, [ ] is needed to release energy from digested food.

A

oxygen

31
Q

During respiration, [ ] and [ ] are produced.

Hint: Its a gas and a liquid.

A

carbon dioxide and water

32
Q

Which organ digests all three types of nutrients?

3 nutrients: carbohydrates, proteins and fats

A

small intestines

33
Q

In which organ does fats starts to get digested?

A

small intestines

G1 Science (Secondary 2) (7 decks)

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