7a Cells Test Sen 2004

You may write on this sheet! Name: ___________________

Tutor Group: _____

For questions 1 to 8 choose the correct word from the brackets to make each sentence correct 1. This is a picture of (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 does. 5. The thin skin around the cell is called the (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) For the questions 9 to 14, match up the organ in the human body with its function (job) from the boxes on the right. (Write the letter next to the question) 9. Lungs

____

10. Heart

____

A: To digest food

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

11. Stomach ____ 12. Brain

____

13. Skin

____

14. Ears

____

B: For hearing and balance

D: To protect the body and help control its temperature

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

F: 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 1st_________

2nd_________

3rd___________

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 1st_________

2nd_________

3rd___________

Choose words from the box to fit the parts of the plant cell in the diagram 17. Part A is the ______________ 18. Part B is the ______________ 19. Part C is the ______________ 20. Part F is the ______________

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? ___________________ 22. Give the 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 ________________________ These drawings show seven different pictures of cells through a microscope. Choose which of the types of cells in the box goes with a certain picture, and then give a 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

A

B

C D

26. B is a ____________________ because_______________________ _________________________. 27. D is a ____________________

E

F

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.