IGCSEBiology: Co-ordinated Sciences (Double Award)CIEExam Questions12. RespirationRespiration

Respiration (CIE IGCSE Biology: Co-ordinated Sciences (Double Award))

Exam Questions

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Respiration

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Respiration

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1
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Glucose is broken down in the chemical processes of aerobic respiration.

Which row of the table below shows the correct products of this breakdown?

 

energy

water

lactic acid

carbon dioxide

A

X

X

✔

X

B

✔

X

X

✔

C

X

✔

X

✔

D

✔

✔

X

✔

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    2
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    Which of the following is the correct word equation for aerobic respiration in plants?

    • glucose + oxygen → carbon dioxide + water

    • carbon dioxide + water → glucose + oxygen

    • glucose + water → carbon dioxide + oxygen

    • glucose + carbon dioxide → water + oxygen

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    3
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    Which of the following processes require, and are dependent on, the activity of enzymes?

    1. aerobic respiration
    2. glucose → lactic acid
    3. osmosis
    4. anaerobic respiration in yeast

    • 1 and 2

    • 1 and 3

    • 1, 2 and 4

    • All of them 

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    4
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    A student investigated respiration in yeast. They set up the experiment as shown in the diagram below.

    061062-may-2018-paper-6-q1-respiration---atp-sq

    Every 30 minutes they replaced the water with the same volume but it was 10 oC warmer and counted the bubbles given off in 2 minutes. 

    What are the independent and dependent variables in this experiment?

      independent dependent
    A number of bubbles time
    B time number of bubbles
    C water temperature number of bubbles
    D water temperature volume of water

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      5
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      Which of the following do humans require energy for?

      1. Producing proteins
      2. Cell division
      3. Generation of nerve impulses
      4. Maintaining body temperature

      • 1 & 3

      • 2, 3 & 4

      • 4 only

      • All of the above

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      1
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      Extended Tier Only

      Which row in the table below shows the correct products produced by anaerobic respiration in yeast and in animals?

       

      animals

      yeast

      lactic acid

      carbon dioxide

      lactic acid

      carbon dioxide

      A

      X

      ✔

      X

      X

      B

      ✔

      X

      X

      ✔

      C

      X

      ✔

      ✔

      X

      D

      ✔

      ✔

      ✔

      X

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        2
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        Extended Tier Only

        During vigorous exercise, such as cycling uphill, lactic acid builds up in the muscles.

        How is this lactic acid removed during recovery?

        • excretion of lactic acid by the kidneys

        • anaerobic respiration of lactic acid in the muscles

        • aerobic respiration of lactic acid in the liver

        • excretion of lactic acid by the lungs

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        3
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        Extended Tier Only

        Why does anaerobic respiration of glucose release less energy in muscle cells than aerobic respiration?

        1. Energy is lost in oxygen.
        2. Energy remains trapped in the chemical bonds in the molecule lactic acid.
        3. Energy remains trapped in the chemical bonds in the molecule ethanol.
        4. Energy is lost in carbon dioxide.

        • 1, 2 and 4

        • 2 only

        • 2 and 3

        • 4 only

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        4
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        The diagram below shows an experimental set-up which can be used to investigate gas exchange in a plant leaf.

        12--image-1-gas-exchange-leaf

        In which direction would the ink drop move and for what reason?

         

        direction

        reason

        A

        to the right

        photosynthesis

        B

        to the left

        photosynthesis

        C

        to the right

        respiration

        D

        to the left

        respiration

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          5
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          Extended Tier Only

          The diagram below shows an experiment set up by a group of students to investigate respiration in yeast.

          12--image-3-yeast-experimen

          Which row of the table below correctly describes the contents of the flask after 20 hours?

           

          new compound

          gas produced

          A

          ethanol (alcohol)

          oxygen

          B

          ethanol (alcohol)

          carbon dioxide

          C

          lactic acid

          oxygen

          D

          lactic acid

          carbon dioxide

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            6
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            Extended Tier Only

            The diagram below shows an experiment set up by a teacher to demonstrate how an investigation into anaerobic respiration in yeast cells can be carried out.

            12--image-4-yeast-experiment

            Predict what would happen to the coloured liquid in the glass tube. 

            • Doesn’t move

            • Moves to the left

            • Moves rapidly to the right

            • Moves slowly to the right

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            1
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            Extended Tier Only

            Four metabolic reactions that can occur in living organisms are shown below:

            1. C6H12O6 + 6O2 → 6CO2+ 6H2O
            2. glucose → lactic acid
            3. 6CO2+ 6H2O → C6H12O6 + 6O2
            4. glucose → ethanol + carbon dioxide

            Which of the above reactions take place in yeast cells to release energy?

            • 1 and 2

            • 1 and 3

            • 3 and 4

            • 1 and 4

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            2
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            Which of the following processes would release the most energy in a cell from one molecule of glucose?

            1. Aerobic respiration in yeast
            2. Aerobic respiration in animals
            3. Aerobic respiration in plants

            • 2 only

            • 3 only

            • 1 & 3

            • All of the above

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            3
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            In which conditions would the cells of a dicotyledonous green plant respire?

             

            mesophyll cell

            root hair cell

            darkness

            bright light

            darkness

            bright light

            A

            ✔

            X

            ✔

            X

            B

            X

            ✔

            X

            X

            C

            X

            X

            X

            X

            D

            ✔

            ✔

            ✔

            ✔

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              4
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              Extended Tier Only

              Which of the following is the correct balanced symbol equation for aerobic respiration in yeast cells?

              • C6H12O6   +  6 O2 →  6 CO2 + 6 H2O

              • C6H12O6 →  2 C3H6O3

              • 6 CO2 + 6 H2O →  C6H12O6  + 6 O2

              • C6H12O6  →  2 C2H5OH + 2 CO2

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              5
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              Extended Tier Only

              The list below shows four metabolic processes that can occur in living cells.

              1. carbon dioxide + water →  glucose + oxygen
              2. glucose → lactic acid
              3. glucose + oxygen →  carbon dioxide + water
              4. glucose →  alcohol + carbon dioxide

              Which row of the table correctly represents the processes that can occur in muscle cells and yeast cells.

               

              in muscles

              in yeast

              A

              3 only

              1 & 4

              B

              3 & 4

              2 & 3

              C

              2 only

              1, 3 & 4

              D

              2 & 3

              3 & 4

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