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Version 2.0 Copyright © AQA and its licensors. All rights reserved. B2.1 Cells and simple cell transport.

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Presentation on theme: "Version 2.0 Copyright © AQA and its licensors. All rights reserved. B2.1 Cells and simple cell transport."— Presentation transcript:

1 Version 2.0 Copyright © AQA and its licensors. All rights reserved. B2.1 Cells and simple cell transport

2 Version 2.0 Copyright © AQA and its licensors. All rights reserved. 1 The diagram shows a cell from a plant leaf. 1 (a) Name the part of this cell that: 1 (a) (i) controls the passage of substances in and out of the cell (1 mark) 1 (a) (ii) is filled with cell sap (1 mark) B2.1.1 Cells and cell structure June 2012 BL2FP

3 Version 2.0 Copyright © AQA and its licensors. All rights reserved. 1 (b) Give the names of two parts of the leaf cell that would not be found in a human liver cell and (2 marks) 1 (c) The chloroplasts produce oxygen. Draw a ring around the correct answer to complete the sentence. (1 mark) B2.1.1 Cells and cell structure June 2012 BL2FP

4 Version 2.0 Copyright © AQA and its licensors. All rights reserved. B2.1.1 Cells and cell structure June 2012 BL2FP Mark Scheme

5 Version 2.0 Copyright © AQA and its licensors. All rights reserved. 2 The diagram shows two cells, a bacterial cell and a plant cell. B2.1.1 Cells and cell structure June 2012 BL2HP

6 Version 2.0 Copyright © AQA and its licensors. All rights reserved. 2 (a) (i) Both the bacterial cell and the plant cell contain ribosomes. What is the function of a ribosome? (1 mark) 2 (a) (ii) The plant cell contains mitochondria but the bacterial cell does not contain mitochondria. Give one other way in which the plant cell is different from the bacterial cell (1 mark) B2.1.1 Cells and cell structure June 2012 BL2HP

7 Version 2.0 Copyright © AQA and its licensors. All rights reserved. 2 (b) (i) Both cells are drawn the same length, but the magnification of each cell is different. The real length of the bacterial cell is 2 micrometres. Calculate the real length, X, of the plant cell. Give your answer in micrometres. Show clearly how you work out your answer X = micrometres (2 marks) 2 (b) (ii) Most mitochondria are about 3 micrometres in length. The plant cell contains mitochondria but the bacterial cell does not contain mitochondria. Use your answer to part (b)(i) and the information in the diagram to suggest why (1 mark) B2.1.1 Cells and cell structure June 2012 BL2HP

8 Version 2.0 Copyright © AQA and its licensors. All rights reserved. B2.1.1 Cells and cell structure June 2012 BL2HP Mark Scheme

9 Version 2.0 Copyright © AQA and its licensors. All rights reserved. AQA-BIOL-W-SMS-2F specimen paper

10 Version 2.0 Copyright © AQA and its licensors. All rights reserved. AQA-BIOL-W-SMS-2F specimen paper

11 Version 2.0 Copyright © AQA and its licensors. All rights reserved. AQA-BIOL-W-SMS-2F specimen paper mark scheme

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