Biology Unit 4 - Prokaryotes Pt 1 Question Preview (ID: 33702)
Biology Unit 4 - Prokaryotes Pt 1.
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The cell membrane is made up of a _____ bilayer.
a) lipid
b) protein
c) carbohydrate
d) acid
Bacteria can be which of the following shapes?
a) Bacillus, Spirilia, Canadiaus
b) Bacillus, Spirilia, Conpus
c) Bacillus, Spirilia, Coccus
d) Bacillus, Quadrain, Coccus
The salt content inside and outside of the cell is equal. What happens to the movement of molecules at this point?
a) Water continues to enter the cell until the salt concentration is lower in the cell
b) Water continues to exit the cell until the salt concentration is higher in the cell
c) Molecules continue to pass in and out of the cell in equal parts
d) All movement stops
Chamber A contains 40% helium and Chamber B contains 20% helium. Chambers are connected by a tube the molecules are free to cross. Which of the following will occur?
a) some helium will move from chamber A to chamber B
b) some helium will move from chamber B to chamber A
c) helium will remain concentrated in chamber A
d) all of the helium will move into chamber B
Prokaryotes and eukaryotes are different because
a) Prokaryotes have RNA; eukaryotes have DNA
b) Prokaryotes have DNA; eukaryotes have RNA
c) Prokaryotes have a nucleus; eukaryotes have a nucleoid
d) Prokaryotes have a nucleoid; eukaryotes have a nucleus.
The outermost boundary of an animal cell is the
a) cell membrane
b) cell wall
c) nucleus
d) cytoplasm
The term prokaryotic means what-literally?
a) false nucleus
b) before the nucleus
c) true nucleus
d) small nucleus
When put into distilled water, a red blood cell will:
a) Inflate until it pops
b) Stay the same
c) Shrink
d) Double in size and then stay that way
What will happen to an animal cell placed in a salt water solution?
a) The cell will shrink
b) the cell will expand
c) the cell will burst
d) the cell will shrink and then expand and then shrink again
What is diffusion?
a) The movement of molecules through a semi-permeable membrane from an area of low concentration to an area of high concentratio
b) The movement of molecules through a semi-permeable membrane from an area of high concentration to an area of low concentratio
c) The movement of molecules across a semi-permeable membrane until there are equal amounts on each side of the membrane
d) Molecules desire to spread as far from a membrane as possible
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