Supplying the Cell (OCR Gateway GCSE Biology)

Exam Questions

55 mins26 questions
1
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The image below shows molecules in two solutions separated by a membrane.

3--image-2--solution

In which direction would there be movement?

  water molecules solute molecules
A right to left no net movement
B left to right right to left
C left to right no net movement
D right to left left to right

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    2
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    A plant absorbs a number of substances into its roots. 

    Which row of the table below correctly shows how these substances usually move into the roots?

      minerals oxygen water
    A active transport diffusion osmosis
    B active transport not absorbed transpiration
    C diffusion diffusion osmosis
    D active transport not absorbed osmosis

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      3
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      The diagram below shows the stages of mitosis but in the incorrect order.

      00EPJ0An_2-1

      1 2 3 4

      Which row represents the correct sequence of stages?

      A 3 → 2 → 4 → 1
      B 2 → 1 → 3 → 4
      C 3 → 4 → 1 → 2
      D 2 → 1 → 4 → 3

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        4
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        Which definition best describes the process of differentiation?

        • The adaptation of a cell for a particular function

        • The process of using stem cells to replace damaged cells

        • The process by which the structure and functional characteristics of a cell changes

        • The process by which a cell continues to grow into a much larger cell

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        5
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        Which of the following statements best describes why embryonic stem cells are more desirable than adult stem cells for therapeutic use?

        • Embryonic stem cells can be used to treat a variety of diseases.

        • Embryonic stem cells can be used to grow new organs for transplantation.

        • There are far fewer ethical issues associated with the use of embryonic stem cells.

        • Embryonic stem cells can differentiate into any specialised cell type.

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        6
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        Look at the table. Which row describes active transport?

          Only occurs
        across a
        membrane
        Uses ATP Only moves substances from
        low to high
        concentration
        high to low
        concentration
        A    
        B  
        C    
        D  

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          7
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          Look at some of the stages in mitosis.

          1 The nuclear membrane forms.
          2 The nuclear membrane breaks down.
          3 Chromosomes separate.
          4 Chromosomes line up on the equator.


          What is the correct order of these stages during mitosis?

          • 1rightwards arrow 3 rightwards arrow2rightwards arrow 4

          • 1rightwards arrow 4 rightwards arrow3rightwards arrow2

          • 2 rightwards arrow4 rightwards arrow3rightwards arrow 1

          • 3rightwards arrow 2rightwards arrow 4rightwards arrow 1

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          8
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          A plant cell is placed in a solution with a higher solute concentration than the cell contents.

          What will happen to the plant cell?

          • Absorb water until it bursts.

          • Absorb water until it is turgid.

          • Lose cytoplasm and shrink.

          • Lose water and become flaccid.

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          9
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          Which is a function of carrier proteins in a cell membrane?

          • Transfer impulses across a synapse

          • Transfer molecules by active transport

          • Transport amino acids in protein synthesis

          • Transport molecules around the blood

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          10
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          Look at the diagram. It shows the particles dissolved in two solutions.

          q2-paper1f-june2018-ocrgcsebio

          The particles can diffuse through the permeable membrane.

          Which statement about the particles is true in this diagram?

          • Particles move in both directions across the permeable membrane.

          • Particles only move from X to Y.

          • Particles only move from Y to X.

          • Particles stop moving when the concentrations become equal.

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          11
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          Why do plant root hair cells use active transport to take in minerals?

          • Minerals are dissolved in water in the soil.

          • Minerals are needed by the plant in very low concentrations.

          • Minerals are present at very high concentrations in the soil.

          • Minerals are present at very low concentrations in the soil.

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          12
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          Which one of these stages comes first during mitosis?

          • The nuclear membrane forms.

          • The nuclear membrane breaks down.

          • Chromosomes separate.

          • Chromosomes line up on the equator.

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          13
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          Scientists want to make human stem cells from body cells rather than getting stem cells from embryos.

          Why is this?

          • Human embryos are single-celled.

          • Some people object to destroying human embryos.

          • Stem cells cannot be found in human embryos.

          • The cells in human embryos are all differentiated.

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          14
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          Why are stem cells useful for repairing damaged tissues?

          • They are easily obtained from any organ.

          • They are not attacked by pathogens such as bacteria.

          • They are haploid.

          • They can divide to form different types of cell.

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          15
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          An experiment is carried out to find the concentration of potato tissue.

          Four chips are cut from a potato.
          q1-paper1h-june2019-ocrgcsebio





          At the start, each chip is 50mm long, 10mm wide and 10mm high.

          Each chip is put in a different sucrose solution A, B, C and D.

          The volumes of the chips are calculated after 1 hour.

          Sucrose solution Volume of chip (mm3)
          A 50
          B 500
          C 5000
          D 50000


          Which sucrose solution has the same concentration as the potato tissue?

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            16
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            A student models the process of mitosis using cookies and sprinkles.

            q4-paper1h-nov2020-ocrgcsebio

            Mitosis is part of the cell cycle.

            Which process in the cell cycle has the student modelled?

            • Cell division

            • Chromosome movement

            • DNA replication

            • Growth of cell

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            17
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            Arsenic is a toxin that stops respiration in cells.

            What other cell process would be stopped because of arsenic?

            • Active transport

            • Diffusion

            • Osmosis

            • Transpiration

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            18
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            In people with multiple sclerosis their immune cells stop working as they should. HSCT is a treatment for multiple sclerosis which destroys all the immune cells.

            Once the immune cells are destroyed, cells from a patient’s bone marrow can replace the immune cells. 

            What type of cell is used to replace the destroyed immune cells?

            • Neurone cell

            • Red blood cell

            • Stem cell

            • White blood cell

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            19
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            What is meant by the term cell differentiation?

            • Cells become organs

            • Cells become organ systems

            • Cells become specialised

            • Cells become tissues

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            20
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            Which type of cell can divide to produce a range of different cell types?

            • Heart cell

            • Neurone cell

            • Sperm cell

            • Stem cell

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            21
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            A student models the process of mitosis using cookies and sprinkles.

            aoGokXOC_q10-paper1f-nov2020-ocrgcsebio

            Mitosis is part of the cell cycle.

            Which part of the cell cycle has the student modelled?

            • Cell division

            • Chromosome movement

            • DNA replication

            • Growth of cell

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            22
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            The diagram shows the direction of oxygen transfer from red blood cells to body cells.

            What process does the arrow show?q3-paper1f-june2019-ocrgcsebio

            • Active transport

            • Diffusion

            • Osmosis

            • Transpiration

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            23
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            During which phase of the cell cycle does mitosis happen?
            q8-paper1f-june2019-ocrgcsebio

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