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WorksheetsY9 Respiration and circulation
Total questions: 25
Worksheet time: 15mins
What are the products of aerobic respiration?
glucose and carbon dioxide
glucose and water
carbon dioxide and water
oxygen and water
Where in the body does respiration occur?
In the heart
In all living cells
In the muscles
In the lungs
Respiration is ....
The movement of the diaphragm
Breaking down starch to sugar
Releasing energy from glucose
Breathing
What is this?
a ribosome
a nucleus
a bacterium
a mitochondrion
True or false: cells need oxygen to release large amounts of energy
True
False
True or false: anaerobic respiration releases energy faster than aerobic respiration
True
False
What products are made during anaerobic respiration in yeast?
Carbon dioxide and water
Ethanol and water
Ethanol and carbon dioxide
Lactic acid and carbon dioxide
Aerobic respiration is controlled by
enzymes
hormones
nervous impulses
ribosomes
What are the two different names of heart chambers?
Anodes
Atriums
Lumens
Ventricles
The Valves in the heart and veins prevent ________.
Forward Flow
Cardiac Flow
Lateral Flow
Back Flow
What does the heart do to the blood.
Oxygenates the blood
Put pressure on the blood to push it around the body.
Increases the whiteblood count in the blood.
Decreases blood pressure to prevent cardiac disease.
Why are human cardiac systems referred to as 'Double Circulatory Systems'?
The heartrate can be doubled to pump more blood around the body when exercising.
There are two 'dubs' (dub-dub) in one heart beat.
The blood moves through the heart twice to be pressurized twice.
Becasue there are two different kinds of blood vessels that are attached to the heart (arteries and veins).
Why do arteries have very thick and elastic walls.
The protect the blood inside.
To prevent coronary heart disease,
So substance like oxygen can't move through the walls.
To withstand the large amount of pressure in the blood they carry.
Capillaries are really thin so substances like oxygen, carbon dioxide and glucose can move in and out of the vessel. How thick are they?
Roughly the same thickness of a hair
One cell thick
1 Micrometres
5 Micrometres
Which one correctly describes a vein?
Low blood pressure, large lumen, valves present
Low blood pressure, small lumen, valves present
Low blood pressure, small lumen, valves absent
High blood pressure, large lumen, valves absent
Vessels with narrow lumens
arteries
capillaries
veins
Vessels that contain valves
arteries
capillaries
veins
Vessels that allow gas exchange
arteries
capillaries
veins
