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Biology > Test Practice Y7 > Flashcards

Test Practice Y7 Flashcards

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1
Q

What are the 7 nutrients?

A

Carbohydrates(starch and sugars), proteins, fats, minerals,vitamins, firbre and water

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2
Q

Name the 3 types of enzymes

A

Carbohydrase,protease, lipase

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3
Q

What are the organs in the digestive system

A

Oesophagus,stomach,pancreas,small intestine, large intestine and anus.

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4
Q

What is diffusion

A

Diffusion is when a substance moves from a high concentration to a low concentration.

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5
Q

What is the independent variable

A

The variable that changes

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6
Q

What is the dependant variable

A

The variable that you measure

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7
Q

What is the control variable

A

The variable that does not change and stays consistent. What you keep the same to make it a fair test.

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8
Q

What is the test for starch and what is the postitive result?

A

Iodine and blue-black

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9
Q

What is the test for Glucose and what is the positive result?

A

Benedicts(+heat) and red( yellow and orange)

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10
Q

What is the test for Protein and what is the positive result?

A

Biuret and purple

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11
Q

What is the test for Fat and what is the positive result?

A

Filter paper and clear

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12
Q

What is the use of Carbohydrates

A

To provide energy

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13
Q

What is the use of protein

A

For growth and repair

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14
Q

What is the use of minerals?

A

Needed in small amounts to maintain health 

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15
Q

What is the use of fat(lipids)

A

To provide energy. Also, to store energy in the body and insulated against the cold.

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16
Q

What is the use of fibre

A

To provide roughage to help to keep the food moving though.

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17
Q

What is the use of water in the body?

A

Needed for cells and body fluids.

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18
Q

What are vitamins used for.

A

Needed in small amounts to maintain health.

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19
Q

Where does absorption occur and what does it have to increase surface area

A

It occurs in the small intestine and has micovilli to increase surface area

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20
Q

What are the 5 kingdoms that all life can be classified into?

A

Animals, plants,fungi,protoctists and bacteria

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21
Q

What is peristalsis?

A

It’s muscular contractions that push food down.

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22
Q

What is physical digestion

A

The breaking down of food particles into smaller particles, E.g Chewing ,stomach contractions

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23
Q

What is chemical digestion?

A

The breaking down of complex molecules into small molecules that your body can use it requires special protein enzymes

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24
Q

What is the function of the nucleus?

A

To hold the DNA

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25
Q

What is the use of mitochondria?

A

To store energy from food

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26
Q

What is the use of cytoplasm?

A

It makes up most of the cell and is where most chemical reactions happen.

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27
Q

What is the use of the cell membrane?

A

It chooses what come in and out of the cell.

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28
Q

What is the use of the vacuole?

A

It keeps the cell firm and contains cell sap.

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29
Q

What is the use of the chloroplast

A

It absorbs the light energy needed for photosynthesis.

30
Q

What is the use of the cell wall.

A

To provide strength and support the plant

31
Q

What is an enzyme and what is its use?

A

Enzymes are Proteins. In our bodies, they break down food from large complex molecules into small molecules. 

32
Q

How do fungi get their nutrition and what is their mode?

A

By decomposition and the mode of nutrition is called saprotrophic nutrition.

33
Q

What is the term pathogen mean?

A

A bacteria, virus or any microorganisms that can cause disease

34
Q

What is the main features of bacteria(prokaryotes)

A

It has no nucleus, mitochondria or chloroplast

35
Q

What is the main features of protoctists?

A

Only some types have a cell wall or chloroplast

36
Q

What is the main features of fungi?

A

It doesn’t have chloroplasts

37
Q

What is the main features of plants.

A

It has all of the things you could possibly have in a cell .

38
Q

What is the main feature of animals.

A

They don’t have a cell wall or chloroplast

39
Q

What is the word equation for respiration?

A

Glucose+oxygen —> carbon dioxide + water

40
Q

What is the equation for photosynthesis?

A

Carbon dioxide +water —> oxygen + glucose

41
Q

What if respiration?

A

Chemical reaction in every cell.

42
Q

What is breathing?

A

Process of air moving in and out of the lungs

43
Q

What is egestion?

A

Removal of faeces from the body

44
Q

Exrection what is it?

A

Removal of waste produced by the body

45
Q

Example of movement

A

Walking

46
Q

Example of respiration?

A

Getting rid of the the reaction between glucose and oxygen

47
Q

Example of sensitivity?

A

Detecting stimuli

48
Q

Example of growth

A

Plant getting taller

49
Q

Example of reproduction

A

Yeast multiplying

50
Q

Example of excretion

A

Sweating

51
Q

Example of nutrition

A

Getting protein from our food

52
Q

Example of control

A

Maintaining your body temperature

53
Q

What is in the respiratory system

A

Lungs, nose and trachea

54
Q

What is in the urinary system

A

Uterus,kidney, bladder, urethra and liver

55
Q

What is in the nervous system

A

Brain and spinal cord

56
Q

What is in the circulatory system

A

Heart, blood, blood vessels

57
Q

What enzymes are in the mouth

A

Carbohdrase

58
Q

What enzymes are in the stomach

A

Protease

59
Q

What enzymes are in the pancreas

A

Carbohydrase

60
Q

What enzymes are in the large intestine

A

Protease and lipase

61
Q

What enzymes are in the small intestine

A

All of them

62
Q

What is a microbe?

A

Very small organism that can only be seen under a microscope

63
Q

What is ingestion

A

Eating

64
Q

What is digestion

A

Breaking down of food into smaller molecules

65
Q

What is absorption

A

To take in/ to soak something up

66
Q

Animal unicellular or multi

A

Multi

67
Q

Plant unicellular or multi

A

Multi

68
Q

Fungi unicellular or multi

A

Both

69
Q

Bacteria unicellular or multi

A

Uni

70
Q

Protoctists unicellular or multi

A

Uni

Biology (7 decks)

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