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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
Provides a soluble environment for chemical reactions
C
Is a buffer for body temperature
D
All of these
2) What is an enzyme?
A
protein catalyst that speeds up a chemical reaction within an organism
B
substance that influences, promotes, and speeds up chemical reactions without being changed itsel
C
site on enzyme where its substrate binds
D
the substance that an enzyme catalyzes or works on
3) Which of the following explains specificity?
A
One enzyme, one substrate
B
One enzyme, one lock
C
One key, one substrate
D
One enzyme, one specific ion
4) If you were to boil an enzyme in water, which of the following would result?
A
There would be no change in how the enzyme works
B
The enzyme would begin working at a faster speed
C
The enzyme would change shape and work less
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 an animal cell because it has mitochondria and an endoplasmic reticulum
B
It is a fungus cell because it has a cell wall and golgi apparatus.
C
It is a prokaryotic (bacterial) cell because it has no membrane-bound organelles.
D
It is a plant cell because it has a cell wall and chloroplasts.
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
Active Transport
B
Osmosis
C
Diffusion
D
Passive Transport
7) Organic Molecules are always comprised of Hydrogen and:
A
Sulfur
B
Carbon
C
Iron
D
Oxygen
8) A type of organic molecule that stores genetic information:
A
Protein
B
Lipid
C
Nucleic Acid
D
Carbohydrate
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
Carbohydrate
B
Protein
C
Nucleic Acid
D
Lipid
10) A type of organic molecule that is used as a log term enegy supply and makes up part of the cell membrane
A
Carbohydrate
B
Nucleic Acid
C
Protein
D
Lipid
*select an answer for all questions
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