ch.4 prokaryotic cells

Question 1

prokaryotics have two domains:

Answer 1

archaea and bacteria

Question 2

prokaryotics cells do not have

Answer 2

-an internal membrane system
-numerous membrane-bounded organelles

Question 3

3 purposes of cell walls

Answer 3

1. protect the cell
2. maintain its shape
3. prevent excessive uptake or loss of water

Question 4

cells walls of ______ are more diverse than _____, containing polysaccharides and proteins, and possibly even inorganic components.

Answer 4

archaea, bacteria

Question 5

________ membrane lipids include saturated hydrocarbons that are covalently attached to glycerol at both ends, which forms a monolayer membrane.

Answer 5

Archaeal

Question 6

bacterial _____ consists of protein rings embedded in the plasma membrane, and a cell wall w/ long protein fibers extending from this.

Answer 6

flagella

Question 6

bacterial _____ consists of protein rings embedded in the plasma membrane, and a cell wall w/ long protein fibers extending from this.

Answer 6

flagella

Question 7

what features do bacteria and archaea share

Answer 7

-both tend to be single cells that lack a membrane-bounded nucleus, and lack extensive internal endomembrane systems.
-both have a cell wall.
-do not undergo mitosis.