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18 Cards in this Set

  • Front
  • Back
Cell Theory
(3 points)
- All organisms are composed of one or more cells
- Cells are the basic living unit of structure and function in organisms
- All cell come only from other cells
Types of Cells

The cell is the smallest structure capable of performing all the functions necessary for life.
How are Prokaryatic and Eukaryotic cells different?
Prokaryotic cells lack membrane enclosed structures/organelles.
Eukaryotic cells possess membrane enclosed structures/organelles.
Which needs to be larger: Cell volume, or cell surface area?
Cell surface area. The ability to get materials and and out of the cell depends on the available surface area.
As a cell increases in volume, does it's proportionate surface area INCREASE or DECREASE?
The surface area decreases in proportion to the growth in volume.
What kind of membrane surrounds all cells?
Plasma membrane.
What material is inside of a cell? (In the space.)
What regulates what goes in and out of a cell?
The plasma membrane.
What characteristics does a prokaryote cell have that eukaryotic cells do not have?
(Five points.)
1. A nucleoid - Instead of a nucleus, where the chromosomes are.
2. Capsule - A gel-like coating outside the cell wall.
3. Structually simple
4. Metabolically diverse
5. Adapted to most types of environments
What are four characteristics of eukaryotic cells that are not true of prokaryotic cells?
1. Have a nucleus
2. Possess membrane-bound organelles
3. Structurally complex
4. May have a cell wall
What are cell membranes made of? (Surrounding the cell itself, and the cell organelles.)
Phospholipid bilayer.
Do animal cells have cell walls?
No, plant cells only.
Do plant cells have lysosomes?
Yes, plant cells have lysosomes but animal cells do not.
Do animal cells have chloroplasts?
No, animal cells only have mitochondria. Plant cells have mitochondria AND chloroplasts.
Do animal cells have centrioles?
Yes, only animal cells have centrioles.
What pattern of microtubules do centrioles have?
9+0, nine sets of triplets and a central tubule.
What pattern of microtubules do cilia and flagella have?
9+2, nine sets of doublets and two central tubules.