Final Review 2 Question Preview (ID: 12164)
Final Review 2.
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Which of the following is a reason that water is important to cells?
a) Provides a soluble environment for chemical reactions
b) Participates in chemical reactions
c) Is a buffer for body temperature
d) All of these
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
Which of the following explains specificity?
a) One key, one substrate
b) One enzyme, one lock
c) One enzyme, one specific ion
d) One enzyme, one substrate
If you were to boil an enzyme in water, which of the following would result?
a) The enzyme would change shape and work less
b) The enzyme would unfold and not work at all
c) The enzyme would begin working at a faster speed
d) There would be no change in how the enzyme works
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 prokaryotic (bacterial) cell because it has no membrane-bound organelles.
c) It is a plant cell because it has a cell wall and chloroplasts.
d) It is a fungus cell because it has a cell wall and golgi apparatus.
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) Diffusion
d) Osmosis
Organic Molecules are always comprised of Hydrogen and:
a) Oxygen
b) Carbon
c) Sulfur
d) Iron
A type of organic molecule that stores genetic information:
a) Carbohydrate
b) Protein
c) Lipid
d) Nucleic Acid
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) Lipid
d) Nucleic Acid
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) Protein
c) Lipid
d) Nucleic Acid
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