Remedial Mid Test Teaching

Remedial Mid Test Teaching

Respiration and Excretion

Multiple Choice

Which is the correct, balanced, symbol equation for anaerobic respiration in yeast?

• C₆H₁₂O₆ + 6 O₂ ---> 6 CO₂ + 6 H₂O

• C₆H₁₂O₆ ---> 2 C₃H₆O₃

• C₆H₁₂O₆ ---> 2 C₂H₅OH + 2 CO₂

• 6 CO₂ + 6 H₂O ---> C₆H₁₂O₆ + 6 O₂

Multiple Choice

Which picture shows how bottles P and Q look after one day?

• A

• B

• C

• D

Multiple Choice

The apparatus shown is set up and left for an hour. A gas is released by the mixture. It caused the indicator to go milky. What is the gas and what is the indicator solution?

• Gas: CO₂ Indicator: lime water

• Gas: CO₂ Indicator: universal indicator

• Gas: O₂ Indicator: ethanol

• Gas: O₂ Indicator: Hydrogen carbonate indicator

Multiple Choice

The diagram below which shows the inner lining of a certain part of the human body. This inner lining can be found in

• the trachea.

• the air sacs.

• the capillaries.

• the small intestine.

Multiple Choice

The main function of cilia which line the respiratory surface is to

• Moisten the trachea

• Lubricate the bronchi to ease the flow of air into the lungs

• Move the mucus to the pharynx and away from the lungs

• Provide mucus to the lungs to prevent the lungs from dehydration

Multiple Select

Just before a person starts to exhale, the composition of the air in an alveolus differs from the composition of the air in the trachea. How would the composition differ? (tick all that apply)

• less oxygen

• more oxygen

• more carbon dioxide

• more water vapour

• less water vapour

Multiple Select

Which of these are adaptations of alveoli?

• Long, finger-like structure increases surface area

• The membrane is only one cell thick which means gases have a short diffusion distance

• Lots of tiny capillaries so gases can pass easily into the blood stream

• Moist

• Lots of enzymes so there are tiny molecules suitable for diffusion

Multiple Choice

A longitudinal section of the kidney and some associated structures have been labelled.

Which has been labelled correctly?