9 Weeks Test Review: Question Preview (ID: 21302)


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Which of the following makes reactions occur faster, with less energy and at a lower temperature?
a) competitive inhibitor b) enzyme c) substrate d) noncompetitive inhibitor
What blocks the active site preventing the reactant from joining with the active site?
a) competitive inhibitor b) enzymes c) noncompetitive inhibitor d) substrate
Which property of an enzyme and substrate is complementary?
a) pH b) color c) shape d) temperature
water moving up the stem of a plant to the leaves
a) cohesion b) capillary action c) adhesion d) pH
Lets insects from walking on water
a) cohesion b) capillary action c) adhesion d) pH
In Exergonic reactions energy is
a) created b) released c) absorbed d) destroyed
Water forms a meniscus in a graduated cylinder
a) cohesion b) adhesion c) capillary action d) solubility
Glass filled with water and is bulging slightly over the rim is
a) cohesion b) adhesion c) capillary action d) solubility
Waxy organic substance that repels water is
a) carbohydrate b) lipid c) nucleic acid d) protein
water molecules attract to other water molecules is
a) cohesion b) adhesion c) capillary action d) solubility
When an animal survives without food for a long time, it will eventually break down proteins for energy. This occurs after using
a) DNA and RNA b) carbohydrate and lipids c) carbon dioxide and water d) enzymes and nucleic acids
Cellular respiration breaks down complex molecules into smaller units that provide energy to organisms. What are these complex molecules?
a) carbohydrates b) lipid c) nucleic acid d) protein
This organic compound makes up the physical structure of the organism (skin, hair, nails).
a) carbohydrate b) lipid c) nucleic acid d) protein
This organic compound is the main source of energy and is used before any other source.
a) carbohydrate b) lipid c) nucleic acid d) protein
Long hydrocarbon chains that repel water are
a) Carbohydrates b) Lipids c) Nucleic Acid d) Protein
The organic compound stores hereditary material.
a) carbohydrate b) lipid c) nucleic acid d) protein
This organic compound stores extra energy supplies.
a) Carbohydrates b) Lipid c) Nucleic Acid d) Protein
In endergonic reactions energy is
a) released and absorbed b) released c) absorbed d) not needed
Glucose is an example of
a) Carbohydrate b) Lipids c) Nucleic Acid d) Protein
An amino acid chain called a polypeptide is
a) Carobhydrate b) Lipid c) Nucleic Acid d) Protein
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