7a Cells Test 2004

Do not write on this sheet!

For questions 1 to 8 chose the correct word from the brackets to make each sentence correct

(plant / animal) cells 2. To see these cells you need a (microscope / telescope) 3. This is because the cells are so (invisible/ far away / small) 4. Each cell has a (brain / nucleus /cytoplasm ) that controls what it 1. This is a picture of

does.

(cell membrane / cell plastic) 6. The green bits in the cell contain (chlorophyll / polycell / oxygen) 7. Similar cells work together to make a (nucleus /tissue/ organ) 8. Different tissues working together to do a certain thing make a (cell/tissue/organ) 5. The thin skin around the cell is called the

For the questions 9 to 14, match up the from the boxes on the right.

Lungs 10. Heart 11. Stomach 12. Brain 13. Skin 14. Ears 9.

organ in the human body with its function (job)

A: To digest food B: For hearing and balance

C: To protect the body and help control its temperature

D: To get oxygen into the blood and remove carbon dioxide

F: To control the actions of the rest of the body

E: To pump blood around the body

15. Put these sentences in order to describe how to set up a slide of a bit of onion before looking at it with a microscope:

A. Cover the sample with a cover-slip so that the onion is very flat B. Put a very small piece of the sample onto a dry slide. C. Put a very small drop of water onto the piece of sample 16. Put these sentences

in order to describe how to look at the slide under the microscope

D. Focus the microscope E. Put the slide onto the stage of the microscope F. Look through the eyepiece of the microscope Chose words from the box to fit the parts of the plant cell in the diagram

Part A is the __________ 18. Part B is the __________ 19. Part C is the __________ 20. Part F is the __________ 17.

Large vacuole Cell Membrane Nucleus Cytoplasm Chloroplast Cell Wall

C A

D E

B

F

21. Does this diagram show a

plant or animal cell?

name of the part A 23. Give the name of part B 24. What is the function (job) of part B? 25. Give the name of part C 22. Give the

These drawings show seven different pictures of cells through a microscope. Chose which of the types of cells in the box goes with a certain picture, and then give a

A

B

reason why you think it is that one by looking at its shape.

egg cell sperm cell red blood cell leaf cell xylem vessel nerve cell

C

D

E

F

26. B is a ________________ because ____________________________. 27. D is a ________________ because ____________________________. 28. G is a __________________ because ________________________________.

G

29. Draw a series of diagrams to show what happens when a single cell

grows and divides. 30. Explain in your own words what your diagrams show.

Well done! Now go back and check your work to make sure you haven’t made any silly mistakes.