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Final Review 2
Test Description: Final Review 2
Instructions: Answer all questions to get your test result.
1) Which of the following is a reason that water is important to cells?
A
Participates in chemical reactions
B
Is a buffer for body temperature
C
All of these
D
Provides a soluble environment for chemical reactions
2) What is an enzyme?
A
the substance that an enzyme catalyzes or works on
B
site on enzyme where its substrate binds
C
protein catalyst that speeds up a chemical reaction within an organism
D
substance that influences, promotes, and speeds up chemical reactions without being changed itsel
3) Which of the following explains specificity?
A
One enzyme, one lock
B
One key, one substrate
C
One enzyme, one specific ion
D
One enzyme, one substrate
4) If you were to boil an enzyme in water, which of the following would result?
A
The enzyme would begin working at a faster speed
B
The enzyme would change shape and work less
C
There would be no change in how the enzyme works
D
The enzyme would unfold and not work at all
5) It is a plant cell because it has a cell wall and chloroplasts.
A
It is a plant cell because it has a cell wall and chloroplasts.
B
It is a fungus cell because it has a cell wall and golgi apparatus.
C
It is an animal cell because it has mitochondria and an endoplasmic reticulum
D
It is a prokaryotic (bacterial) cell because it has no membrane-bound organelles.
6) The water concentration is higher in the root hairs of a certain plant growing in the desert than it is in the surrounding soil. Under these conditions, more water molecules may e
A
Passive Transport
B
Active Transport
C
Osmosis
D
Diffusion
7) Organic Molecules are always comprised of Hydrogen and:
A
Oxygen
B
Carbon
C
Iron
D
Sulfur
8) A type of organic molecule that stores genetic information:
A
Lipid
B
Protein
C
Carbohydrate
D
Nucleic Acid
9) A type of organic molecule that is used as a quick energy supply and helps make up the cell wall of a plant cell:
A
Protein
B
Carbohydrate
C
Lipid
D
Nucleic Acid
10) A type of organic molecule that is used as a log term enegy supply and makes up part of the cell membrane
A
Lipid
B
Carbohydrate
C
Protein
D
Nucleic Acid
*select an answer for all questions
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