Week 2: Microscopes and Protists *Be familiar with the components of the microsc

Question

Week 2: Microscopes and Protists *Be familiar with the components of the microscope discussed in lab.

*Be able to label the parts of a blank microscope

1. What are the two functions/actions of microscopes that allow us to view small objects? (Hint: One makes them appear bigger, one makes them clearer)

2. What does the term eukaryotic mean? 3. What does the term prokaryotic mean?

4. What is mutualism? Commensalisms? Parasitism? Give examples of each.

5. At what level of organization do protists exist? 6. Do protists have any organs?

7. Write out the taxonomy of this kingdom and examples of critters in each that we discussed in lab (i.e., Phylums, sub-phylums, Orders, etc.)

8. What are cilia? Flagella? Pseudopodia? Give an example of an organism that uses each.*Be able to identify the various unicellular organisms we viewed in lab*

Explanation / Answer

1. Enlarges cells or cell parts up to 1000 times
Identify different types of microorganisms gram +ve or gram_ve bacteria through microscope.

2. Eukaryotic means true kernel or true nucleus. The presence of the membrane-bound nucleus in these cells.

3. Prokaryotic means pro-before and karyo - nut or kernel. There is no membrane-bound nucleus present in these cells.

4. Mutualism - A relationship in which both organisms benefit. Eg. Bees and flower
Commensalism - The one organism befefit and other unchanged. Eg. remora, golden jackals
Parasitism - The one organism befefit and other affected. Eg. All parasites

5. Plant-like protist, Animal like protist, PArasite like protist

6. No

8. Cilia - Tiny hair-like projections used for movement. Eg. Paramecia
Flagella - It is whiplike tails found in one-celled organisms to aid in movement Eg.Zooflagellate
Psedopodia - It is temporary cytoplasmic extension that functions in food injection and movement in certain amoeboid cells. Eg. Ameboa

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