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Biology > Test Practice Y7 > Flashcards

Test Practice Y7 Flashcards

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
What is the use of mitochondria?
To store energy from food
26
What is the use of cytoplasm?
It makes up most of the cell and is where most chemical reactions happen.
27
What is the use of the cell membrane?
It chooses what come in and out of the cell.
28
What is the use of the vacuole?
It keeps the cell firm and contains cell sap.
29
What is the use of the chloroplast
It absorbs the light energy needed for photosynthesis.
30
What is the use of the cell wall.
To provide strength and support the plant
31
What is an enzyme and what is its use?
Enzymes are Proteins. In our bodies, they break down food from large complex molecules into small molecules. 
32
How do fungi get their nutrition and what is their mode?
By decomposition and the mode of nutrition is called saprotrophic nutrition.
33
What is the term pathogen mean?
A bacteria, virus or any microorganisms that can cause disease
34
What is the main features of bacteria(prokaryotes)
It has no nucleus, mitochondria or chloroplast
35
What is the main features of protoctists?
Only some types have a cell wall or chloroplast
36
What is the main features of fungi?
It doesn’t have chloroplasts
37
What is the main features of plants.
It has all of the things you could possibly have in a cell .
38
What is the main feature of animals.
They don’t have a cell wall or chloroplast
39
What is the word equation for respiration?
Glucose+oxygen —> carbon dioxide + water
40
What is the equation for photosynthesis?
Carbon dioxide +water —> oxygen + glucose
41
What if respiration?
Chemical reaction in every cell.
42
What is breathing?
Process of air moving in and out of the lungs
43
What is egestion?
Removal of faeces from the body
44
Exrection what is it?
Removal of waste produced by the body
45
Example of movement
Walking
46
Example of respiration?
Getting rid of the the reaction between glucose and oxygen
47
Example of sensitivity?
Detecting stimuli
48
Example of growth
Plant getting taller
49
Example of reproduction
Yeast multiplying
50
Example of excretion
Sweating
51
Example of nutrition
Getting protein from our food
52
Example of control
Maintaining your body temperature
53
What is in the respiratory system
Lungs, nose and trachea
54
What is in the urinary system
Uterus,kidney, bladder, urethra and liver
55
What is in the nervous system
Brain and spinal cord
56
What is in the circulatory system
Heart, blood, blood vessels
57
What enzymes are in the mouth
Carbohdrase
58
What enzymes are in the stomach
Protease
59
What enzymes are in the pancreas
Carbohydrase
60
What enzymes are in the large intestine
Protease and lipase
61
What enzymes are in the small intestine
All of them
62
What is a microbe?
Very small organism that can only be seen under a microscope
63
What is ingestion
Eating
64
What is digestion
Breaking down of food into smaller molecules
65
What is absorption
To take in/ to soak something up
66
Animal unicellular or multi
Multi
67
Plant unicellular or multi
Multi
68
Fungi unicellular or multi
Both
69
Bacteria unicellular or multi
Uni
70
Protoctists unicellular or multi
Uni

Biology (11 decks)

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