Cell Theory and Origins
Unicellular and Multicellular Organsims
Stem Cells
Microscopes
Eukaryotic and Prokaryotic Cells
100
What is the basic unit of life?
Cells
100
What is the difference between a unicellular organism and a multicellular organism.
Uni=one; Multi=many;
100
What is a stem cell?
Undifferentiated cell that can turn into specialized cell;
100
Define resolution.
the ability of a microscope to show two close objects separately
100
Which cell has a nucleus?
Eukaryotic
200
Where do cells come from?
The division of other existing cells (this ain't theology)
200
What is the challenge to increasingly large cells and how is it solved?
As size increases, surface area to volume ratio decreases. Multicellular organsims.
200
How can non-stem cells change their specialized path?
They don't
200
How does one determine magnification?
Magnification=size of image/size of specimen
200
How do eukaryotic cells multiply?
mitosis or meiosis
300
Name seven parts of a cell.
Cytoplasm; Cell membrane; Cell wall (plants); Nucleus; Mitochondria; Chloroplasts (plants); Golgi Apparatus; Vesicles; Endoplasmic Reticulum (rough and smooth); Ribosomes; Lysosomes;
300
Define differentiation is multicellular organisms with reference to the organism's genome.
Cell contains full genome; Cell only expresses genes for it's specialized purpose; Cell (non-stem) can not change a path of development once begun;
300
Name two locations of adult stem cells.
Bone marrow; Skin; Liver;
300
What are differences between light and electron microscopes?
Electron has higher resolutions and magnification; Light has more color;
300
How do prokaryotic cells multiply?
Binary fission
400
Name an exception to cell theory.
Skeletal muscle; Giant algae; Aseptate fungi;
400
Name four functions of a unicellular organism.
Nutrition; Growth; Response; Excretion; Metabolism; Homeostasis; Reproduction;
400
How are stem cells used to treat Leukemia?
Stem cells are extracted from bone marrow; Bone marrow cells killed; Stem cells reintroduced;
400
Which lens does one start with on a light microscope?
lowest
400
What compromises the ultrastructure of eukaryotic cells?
organelles
500
Define endosymbiotic theory.
Cells living within cells; Mitochondria and chloroplasts performing independently of larger cell; Beneficial to both cells;
500
Define emergent properties of cells.
Interaction of component cells to create larger properties of an organism.
500
Free 500 points!
Free 500 points!
500
What is the difference between transmission electron microscopes and scanning electron microscopes?
TEM used to view ultra thin sections; SEM used to view the surface of structures;
500
Define compartmentalization.
The dividing of a eukaryotic cell into organelles with specialized purposes.
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