Cell Structure and Function Practice: Use Ch 4 in Mader Biology

1. Write the name of the cell part in the box next to its description/function.Cell membraneCentriolesChloroplastChromatinCytoplasmEndoplasmic reticulum-

rough

Endoplasmic reticulum- smooth

Golgi apparatusLysosomeMitochondriaNuclear envelopeNucleolus

NucleusPeroxisomeRibosomes, boundRibosomes, freeVacuoleVesicle, secretoryVesicle, transport

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Name:Per/row:

2. Indicate if each of the following is true of chromosomes or chromatin. Use the key below to indicate your answers. A. Chromosomes B. Chromatin______ Consist of DNA and proteins ______ Condensed______ Tightly coiled ______ Visible when stained______ Dispersed ______ Decondensed______ Uncoiled

3. Determine if each of the following is true of Free or Bound ribosomes.______ Produce proteins for use within the cell______ Produce proteins for export______ Attached to rough ER______ Suspended in the cytosol______ Consist of 2 subunits______ Composed of rRNA and proteins

4. a. How does the function of the central vacuole in plant cells differ from the function of vacuoles in animal cells?

b. How are the functions similar?

5. Determine if the each of the following is true of microtubules, microfilaments, or intermediate filaments. Use the key below to indicate your answers.

MT = Microtubules MF = Microfilaments IF = Intermediate filaments______ Straight, hollow tubes______ Made of tubulin______ Involved in cell transport______ Provides tracts for organelle movement______ Make up spindle fibers, centrioles, cilia, and flagella______ Solid rods______ Made of actin______ Involved in muscle contraction and localized cell contractions______ Form 3-D support network just inside the cell membrane______ Form contractile ring that pinches dividing animal cell in two______ Produces cytoplasmic streaming______ Intermediate in diameter______ Composition varies______ More permanent______ Reinforces cell shape and may fix organelle position

6. Match the cell part with the correct letter from the diagram:______ Cell membrane______ Centrioles______ Chromatin______ Cytoplasm______ Golgi______ Lysosome______ Mitochondria______ Nuclear envelope______ Nucleolus______ Ribosomes______ Rough ER______ Smooth ER______ Cytoskeleton

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______ Flagella 7. Is the cell pictured in number 6 above an animal or plant cell? _______________

How do you know?

8. Match the function with the correct cell part from the diagram below.

(If you are having trouble with what part is what, as least write the organelle that is described, but you should attempt the right labels.)

organelle

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9. Match the structure with the correct letter from the diagram below.______ Bound ribosomes______ Cell membrane______ Cell wall______ Central vacuole______ Chloroplast______ Cytoplasm______ Golgi______ Mitochondria______ Nuclear envelope______ Nuclear Pore______ Nucleolus______ Rough ER______ Smooth ER

10. Is the cell pictured in number 9 above an animal or plant cell?___________ How do you know?

11. Match the function with the correct letter from the diagram below. (again, if you can’t make out the organelle, at lease write the name of the organelle being described)

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12. Color the following parts on the Endomembrane diagram below:

13. The diagram in #12 shows the relationship among the majority of the components on the endomembrane system. Use the diagram and your notes to complete the following chart.

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14. Match each of the events listed below with the correct number from the diagram in #12._______________ Proteins routed by ER; proteins may be modified_______________ Formation of transition vesicle_______________ Lysosome fuses with vacuole_______________ Transition vesicle carries contents to the Golgi_______________ Secretory vesicle produced_______________ Golgi modifies proteins_______________ Amino acids imported into the cell; bound ribosomes use the amino acids to produce

proteins_______________ Lysosome produced; lysosome contains hydrolytic enzymes_______________ Secretory vesicle contents released to the outside

15. Determine if each of the characteristics listed below are true of Cilia or Flagella.______ 9+2 arrangement of microtubules______ Involved in movement______ Shorter______ Longer______ Many per cell______ One or two per cell______ Produce an oar-like motion______ Produce a snake-like motion

16. What is the extracellular matrix?

17. What are the 3 main shapes that prokaryotic cells take? Sketch them.

18. What is the main difference in prokaryotic and eukaryotic cells?

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