Chapter 6 Practice Paper: Model of Cells — question paper

Section A: Multiple-choice questions[10 marks]

Answer all questions. For each question, write the letter (A, B, C or D) of the correct answer in the brackets provided.

1. 1

   The genetic material of the Elodea cell on a prepared slide is stored in the

   1. Anucleus.
   2. Bcell wall.
   3. Clarge vacuole.
   4. Dchloroplast only.
   ( )
2. 2

   A leaf cell makes glucose using light. The structure that carries out that job, and that an animal cell does not have, is the

   1. Acell membrane
   2. Bnucleus
   3. Cchloroplast
   4. Dcytoplasm
   ( )
3. 3

   The cell membrane

   1. Amakes food by photosynthesis.
   2. Bcontrols what enters and leaves the cell.
   3. Cis the same structure as the cell wall.
   4. Dcontains only water.
   ( )
4. 4

   Similar cells that work together are called

   1. Aan organ system.
   2. Ban organism.
   3. Can element.
   4. Da tissue.
   ( )
5. 5

   In a bean plant, a palisade cell, the leaf, a layer of palisade cells, and the shoot system must be listed from smallest to largest as

   1. Apalisade cell, layer of palisade cells, leaf, shoot system.
   2. Bshoot system, leaf, layer of palisade cells, palisade cell.
   3. Cleaf, palisade cell, shoot system, layer of palisade cells.
   4. Dlayer of palisade cells, shoot system, palisade cell, leaf.
   ( )
6. 6

   An onion-skin cell has a cell wall and a large sap-filled space, and it is colourless. It is most likely

   1. Aan animal cheek cell.
   2. Ba virus.
   3. Ca plant cell that is not photosynthesising.
   4. Da crystal of salt.
   ( )
7. 7

   Which pairing is correct?

   1. Acell wall — makes glucose
   2. Bcell membrane — keeps the plant cell rigid only
   3. Cchloroplast — controls entry
   4. Dcell wall — supports the plant cell; cell membrane — controls entry
   ( )
8. 8

   Cells were unknown until better lenses were made. The microscope matters in this chapter because it

   1. Aremoves the nucleus.
   2. Bmade cells visible.
   3. Cturns tissues into organs.
   4. Dmeasures density.
   ( )
9. 9

   Many of the chemical reactions of a cell happen in the

   1. Acytoplasm.
   2. Bcell wall.
   3. Cmicroscope lens.
   4. Dspace outside the organism.
   ( )
10. 10

    A large central vacuole is found in

    1. Aevery animal cell.
    2. Ba copper atom.
    3. Ca typical plant cell.
    4. Dthe cell wall.
    ( )

Section B: Structured questions[20 marks]

Answer all questions in the spaces provided. Show your working for calculations.

1. 1

   A student prepares two slides. Slide R shows a green Elodea cell with a rigid outer layer and a large sap space. Slide S shows a human cheek cell with a nucleus and a thin outer membrane, and no rigid outer layer.

   1. (a)

      State which slide shows the plant cell, and give two features that support the choice.

      [3]
   2. (b)

      Both slides show the cell part that stores genetic information. Name that part.

      [1]
   3. (c)

      State one role of the cytoplasm.

      [1]
2. 2

   A leaf cell and a root cell come from the same plant.

   1. (a)

      State one job of the cell wall and one job of the cell membrane.

      [2]
   2. (b)

      Explain what division of labour means, using these two cells.

      [3]
3. 3

   A leaf is part of a plant.

   1. (a)

      A mesophyll cell, the whole shoot, a vein in the leaf, and the leaf itself are parts of one plant. List them from the smallest level to the largest level.

      [1]
   2. (b)

      Explain why a leaf is called an organ.

      [2]
   3. (c)

      The microscope has a lamp and a mirror that can be tilted towards the window. State why the student should use the lamp instead of direct sunlight.

      [1]
   4. (d)

      DNA is found in the nucleus. State what kind of material it is.

      [1]
4. 4

   The drawings in this chapter are models of typical cells.

   1. (a)

      Explain why a typical animal cell is called a model.

      [2]
   2. (b)

      State one feature the model predicts will be missing from a typical animal cell.

      [1]
   3. (c)

      Explain why a root cell with no chloroplasts is still a plant cell.

      [2]