What is a control variable?

A variable that must be kept constant

Coronary Heart Disease is caused by?

A build up of fatty material inside the coronary artery.

How acid or alkali a substance is

What is a artificial pacemaker?

Electrical device to correct irregularities in heart rate.

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Organisation AQA GCSE

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The basics of the organisation module #Horton #GCSE #Biology #AQA #organisation

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Questions 20

Answers

1
The blood vessels that carry blood away from the heart are all?
Veins
Arteries
Capillaries
2
What colour does biuret solution turn if protein is present in food?
Light Brown
Green --> Yellow --> Red
Blue - Black
Purple
3
In digestion starch is broken down into?
Carbohydrates
Glucose
Fatty Acids and Glycerol
Amino Acids
4
The first chambers of the heart are called?
Valves's
Atrium's
Ventricle's
Aorta's
5
What molecules is protein made from?
Sugars
Lipids
Amino Acids
Glycerol
6
What food group does biuret solution test for?
Carbohydrates
Sugar
Fats
Protein
7
What cells are these?
Brain cells
Root Hair Cells
Nerve Cells
Red Blood Cells
8
What is a control variable?
A variable that you change
A variable that must be kept constant
A variable that you measure
9
What is the function of Red Blood Cells?
To carry electrical impulses
Too carry oxygen
To fight infection
Too carry carbon dioxide
10
The two arteries that carry blood away from the heart are called?
Aorta
Pulmonary Vein
Vena Cava
Pulmonary Artery
11
Coronary Heart Disease is caused by?
Genetics.
Having a high resting heart rate
Eating to much cholesterol.
A build up of fatty material inside the coronary artery.
12
What pH does Amylase work best in?
14
7
1
8
13
What is pH
How hot or cold a substance is
How fast a substance is
How acid or alkali a substance is
How reactive a substance is
14
Protease is a enzyme that breaks down?
Protein
Fibre
Fats
Starch
15
What colour does Iodine solution turn in the presence of starch?
Blue - Black
Black
Light Brown
Purple
16
What colour/colours does benedicts solution turn in the presence of sugar?
Green --> Yellow --> Red
Green --> Yellow
Blue
Green
17
What is a artificial pacemaker?
An electrical device that restarts the heart.
Electrical device to correct irregularities in heart rate.
An electrical device that help sports people run faster.
An electrical device that speeds up digestion.
18
What is a group of cells with similar structure and function called?
An organ
A system
A tissue
A group
19
Benedicts reagent is an indicator that tests for
Protein
Fats
Starch
Sugars
20
Which enzyme is responsible for digesting fats?
Lipase
Carbohydrase
Protease
Amylase

Organisation AQA GCSE Flashcards | StudBud