Prepared by Mr Chris Goh on 24/4/15

P5/P6 Standard Science - Diagnostic Test (1)Topic: CellsEach MCQ carries two marks, making up a total of 16 marks. Write your answer in the boxes below.Open-ended questions have their marks indicated in square brackets.Q1Q2Q3Q4Q5Q6Q7Q8

Q1. The diagram below shows a plant.

Cells were taken from Parts X and Y.What are the cell parts you can find in BOTH part X and Y of the plant?A. NucleusB. Cell WallC. ChloroplastD. Cell membrane

(1) A and C only(2) A, B and C only(3) A, B and D only(4) B, C, and D only

Q2. The diagram shows a magnified view of a single-celled organism which Min Yue found in a pond.

Based on the above diagram, which of the following statements below is/are likely to be true?A. The organism is a plantB. The organism is an animalC. The organism can make its own food

(1) A only(2) A and B only(3) A and C only(4) A, B, and C only.

Q3. Mr Goh classified three types of cells as below.

What are questions A and B?Question AQuestion B

(1)Does it have cell wall?Does it have chloroplasts?

(2)Does it have nucleus?Does it have cell wall?

(3)Does it have chloroplasts?Does it have cell wall?

(4)Does it have cell membrane?Does it have nucleus?

Q4. The diagram below shows two cells, M and N.

Jarren managed to successfully transfer Part Z in Cell M to cell N.He found that this new Cell N produced sugar when placed in a brightly-lit environment.Which one of the following would also take place in Cell N?A. Cell N would produce oxygen.B. Cell N would have a more regular shape.C. Cell N would start to form cell membrane.D. Cell N would be able to form a stronger cell wall.

(1) A only(2) A and D only(3) B and C only(4) B and D only

Q5. The table below shows some information on three cells,, A, B and C.A tick indicates the presence of the part of a cell.

Where are cells A, B and C likely to be found?Cell ACell BCell C

(1)LeafRootCheek

(2)RootCheekLeaf

(3)CheekLeafRoot

(4)LeafCheekRoot

Q6.Si Xuan placed 2 cells, A and B, in solution S.

After one hour, Cell A swelled up and burst but Cell B remained the same.What is the possible reason why Cell B did NOT swell up like Cell A?(1) Cell B has a nucleus which controls the movement of Solution S in the cell.(2) Cell B has chloroplast that prevents solution S from entering the cell.(3) Cell B has a cell wall that keeps its shape and prevents the cell from swelling up.(4) Cell B has a semi-permeable membrane that prevents solution S from entering.

Q7. Which of the following is true?(1) All plants have chloroplasts.(2) Bigger animals have bigger cells.(3) All animal cells are irregular in shape.(4) An organ is made up of many types of cells.

Q8. Min Yue observes four kinds of cells under a microscope.

Based on the diagrams above, which one of the following correctly shows how the cells should be classified?

Cell WCell XCell YCell Z

(1)ABCD

(2)BADD

(3)DCAB

(4)DBCA

Q9. Observe Cells A and B carefully.

(a) State one difference between Cell A and B. Do not mention differences in size and shape.

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(b) What is the function of the cell membrane?

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Q10. State the differences between the root cell of a plant and the cheek cell of a human.

(a)

(b)

(c)

(d)

Q11. Jian Jie carried out an experiment to explore the function of a certain part of two different cells, shown below.

The diagram below shows what happens to the two cells X and Y after being immersed separately in solution P for 15 minutes.Solution P contains two substances A and B. A: black dotB: white dot

(a) Compare the difference between X and Y 15 minutes after immersing them in solution P (Do not compare shape & size)..(b) Which part of the cell is responsible for the change in the number of substance A in Cell Y as compared to Cell X? Give a reason for your answer.

Q12. Winnie used an optical microscope to observe three different cells. They are pictured below.

(a) Which of these cells A, B and C, is plant cell? Give a reason for your answer. [1]

(b) Winnie says that the nucleus has two functions. What are they? [2]

Q13 (a). Ethan was studying the unicellular organism shown below. This organism is found in a pond and it moves with its flagellum.

Based on the diagram, explain why Ethan would have difficulty classifying the organism as a plant cell or an animal cell. [2](b) The diagram shows a cell taken from a plant.

Name the tiny opening and state one of its main functions. [2]

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