8B Quick Quiz


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8B Quick Quiz

  

8Ba

1 What is digested food used for in our bodies?

A To provide energy only.

B To provide energy, for growth and to provide chemicals to make new substances.

C To provide oxygen.

D To provide carbon dioxide.

 

2 What is the name of the process that releases energy in our bodies?

A photosynthesis

B excretion

C reproduction

D respiration

 

3 What substance is used as the main energy resource in our bodies?

A protein B glucose

C oxygen D water

 

4 In what ways is burning similar to respiration?

A Both reactions produce oxygen and water.

B Both reactions use oxygen and water.

C Both reactions occur in one uncontrolled step.

D Both reactions release energy and produce carbon dioxide.

 

8Bb

1 How is oxygen transported around the body?

A carried on red blood cells

B as a gas

C carried on white blood cells

D attached to glucose

 

2 The heart and blood vessels make up the:

A breathing system. B digestive system.

C nervous system. D circulatory system.

 

3 The heart has two halves. This is because:

A one half pumps blood to the lungs, and the other half pumps blood around the rest of the body.

B one half is not used except in an emergency.

C one half pumps blood around the body one way, and the other half pumps blood around the body in the other direction.

D one half pumps blood, and the other half pumps water carrying dissolved food.

 

4 The smallest blood vessels are called:

A veins. B arteries.

C capillaries. D tributaries.


8Bc

1 When you exercise:

A your pulse rate stays the same, but your breathing rate goes up.

B your pulse rate goes up, but your breathing rate goes down.

C your pulse rate goes down, but your breathing rate goes up.

D your pulse rate goes up, and your breathing rate goes up.

 

2 How is carbon dioxide transported around the body?

A carried on red blood cells

B as a gas

C carried on white blood cells

D dissolved in the plasma

 

3 The word equation for aerobic respiration is:

A glucose + carbon dioxide water + oxygen (+ energy)

B glucose + oxygen water + carbon dioxide (+ energy)

C oxygen + carbon dioxide water + glucose (+ energy)

D oxygen + water glucose + dioxide (+ energy)

 

4 Cells that need oxygen take it from a liquid that leaks out of capillaries. This liquid is called:

A oxygenated blood.

B lymph.

C tissue fluid.

D formalin.

 

8Bd

1 Air entering the lungs would pass through the following structures in the order:

A trachea bronchus air sac alveoli

B trachea bronchus alveoli air sac

C alveoli trachea bronchus air sac

D bronchus trachea air sac alveoli

 

2 What part of the lung is labelled Y, in the diagram?

 

A diaphragm B windpipe

C air sac D bronchus


3 The movement of particles from an area where they are in a high concentration to an area where they are in a lower concentration is called:

A dissolving. B transport.

C diffusion. D excretion.

 

4 Mucus lines the air passages and traps dirt and tiny organisms called microbes. It is moved up and out of the lungs by tiny hairs called:

A villi. B cilia.

C bristles. D filaments.

 

8Be

1 The air we breathe in contains:

A more oxygen and more water vapour than the air we breathe out.

B more oxygen and less carbon dioxide than the air we breathe out.

C more carbon dioxide and less oxygen than the air we breathe out.

D more carbon dioxide and less water vapour than the air we breathe out.

 

2 Water vapour can be detected using:

A limewater.

B hydrogencarbonate indicator.

C cobalt chloride paper.

D universal indicator paper.

 

3 Limewater is used to test for:

A oxygen.

B nitrogen.

C hydrogen.

D carbon dioxide.

 

4 Hydrogencarbonate indicator is yellow in acidic solutions, purple in alkaline solutions and pink in neutral solutions.

If exhaled air is bubbled through hydrogencarbonate indicator solution, it would turn the indicator:

A purple.

B yellow.

C pink.

D cloudy.