Science Revision

Where does respiration take place in the body?

• The lungs

• The cells

• The blood

• The heart

Where exactly does gaseous exchange take place?

• The heart

• Cells

• Alveoli

• The lungs

What liquid can be used to test for the presence of carbon dioxide?

• Lime water

• Glucose solution

• Benedict's Solution

• Water

Label the gases that are used in gaseous exchange.

• X = Nitrogen

  Y = Oxygen

• X = Carbon Dioxide

  Y = Oxygen

• X = Oxygen

  Y = Carbon Dioxide

• X = Hydrogen

  Y = Oxygen

What is the name given to the opening of the respiratory and digestive systems?

• Larynx

• Mouth

• Trachea

• Pharynx

How many pairs of ribs does the average person have?

• 10

• 12

• 14

• 16

Nitrogen makes up how much of the air around us?

• 51%

• 78%

• 65%

• 23%

What substance is used to test for the presence of starch?

• Iodine

• Benedict's Solution

• Methylene Blue

• Biuret Reagent

The main function of what organ is to absorb water into the blood?

• Stomach

• Small Intestine

• Large Intestine

• Liver

What name is given to the wave-like motion that moves food through the oesophagus?

• Peristalsis

• Osmosis

• Diffusion

• Digestion