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Transcript
CELLS & TISSUES TEST Student Name ______________________________ 1. 1. If the eyepiece lens of a microscope is marked X10 and the objective lens is marked X4, the total magnification is _____________________ 2. What is usually found in the cytoplasm of a plant cell? _____________________ 3. What stain did you use for viewing plant cells on the slide? _____________________ 4. State two features visible under a light microscope that indicate that cells are typical plant cells. ____________________________________________________________________________________ 5. Name the stain that you used when examining an animal cell under the microscope. _____________________ 6. Describe the difference in colour or depth of colour, if any, between the nucleus and cytoplasm when the stained cell was viewed under the microscope. __________________________________________ 7. Where in a cell would you expect to find phospholipids? _____________________ 8. State a function of each of the following components of a cell. (i) Ribosome _____________________ (ii) Cell membrane _____________________ 9. State two ways in which red blood cells differ from typical body cells e.g. from the cheek lining. ____________________________________________________________________________________ 10. The liquid in which chemical reactions take place in the cell is_____________________ 11. Name a cell organelle, apart from the nucleus, in which DNA is found _____________________ 12. Where in the cell would you expect to find most DNA? _____________________ 13. State a function of the cell membrane __________________________________________ 14. Name the organelle (component) of the cell in which photosynthesis takes place. _____________________ 15. How do phospholipids differ from other lipids? _____________________ 16. What is a selectively permeable (semi-permeable) membrane? ____________________________________ 17. State one feature that would allow you to identify an eukaryotic cell _____________________ 18. Where in the cells of a leaf is chlorophyll found? _____________________ 2. Distinguish between the following pairs of terms: (a) Nucleus and nucleolus ___________________________________________________________________ __________________________________________________________________________________________ (b) Organ and organelle ___________________________________________________________________ __________________________________________________________________________________________ (c) Mitochondrion and chloroplast___________________________________________________________________ __________________________________________________________________________________________ (d) Light and electron microscope___________________________________________________________________ __________________________________________________________________________________________ (e)*Eukaryotic and prokaryotic cell _______________________________________________________________ __________________________________________________________________________________________ 3. (a) Name the parts of the cell labelled A, B and C in the diagram of a white blood cell. A = __________________________________ B = __________________________________ C = __________________________________ (b) What is the function of C? __________________________________ (c) Name three extra structures that would change this animal cell into a typical plant cell. _____________________________________________ 4. (a) Label the parts as shown in the diagram of the light microscope. A = __________________________________ B = __________________________________ C = __________________________________ D = __________________________________ E = __________________________________ F = __________________________________ G = __________________________________ (b) Describe how you prepared a stained plant cell(or animal cell) for examination under the microscope. _____________________________________________________________ _____________________________________________________________ (c) Give the correct steps for examination of the sections under the high-power lens. _______________________________________________________________________________________________ ______________________________________________________________________________________________ (d) It is recommended not to use the coarse focus wheel when examining a specimen under high power. Why? ______________________________________________________________________________________________ (e) An object viewed with this microscope is calculated to be magnified 400 times (x400). If the magnifying power of C is x40, what is the magnifying power of A? _______________________ (g) Give a reason why the light microscope cannot be used to examine the structure of a virus. ______________________________________________________________________________________________ 5. Each word in the left-hand column below is related to one of the words in the right-hand column. Write them down in the correct pairs. _________________________ _________________________ _________________________ _________________________ _________________________ 6. From the list on the right, pick the structures which are found in : (a) animals cells only __________________________________________________ (b) plant cells only, and __________________________________________________ (c) both animal and plant cells __________________________________________________ 7. The diagrams show a typical plant and animal cell. (a) Which diagram (X or Y) shows the plant cell? _________________________ (b) State two reasons for your choice. __________________________________________________ (c) Name the part labelled A. _______________________ (d) Name the structure labelled C. ________________________ (e) Name the coiled thread-like structures that might be found in B. _________________________ (f) Which letter on the diagrams shows where DNA might be found? _________________________