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Reading Quiz

This activity contains 28 questions.

Question 1
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Scientists are exploring an area of modern science called nanotechnology, which involves __________.
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Question 2
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Which is the best definition of energy?
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Question 3
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Which one of the following statements about energy is correct?
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Question 4
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Energy is observed in two basic forms: potential and kinetic. Which of the following is an example of potential energy?
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Question 5
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Entropy means that __________.
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Question 6
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Molecules of food have a special form of potential energy called _____.
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Question 7
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Calories are units of _____.
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Question 8
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The molecule most directly involved in energy transfer within cells is _____.
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Question 9
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Which are materials found in a molecule of ATP?
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Question 10
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ATP drives work in cells by __________ to other molecules.
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Question 11
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Which is a true statement about the ATP cycle?
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Question 12
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An enzyme is a protein that __________.
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Question 13
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Activation energy can be described as __________.
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Question 14
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Which choice describes the process scientists use to mimic a natural genetic process of cells?
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Question 15
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What best explains the observation that an enzyme is selective in the reaction it catalyzes?
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Question 16
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Many metabolic pathways are slowed by inhibiting an enzyme required for a particular product. What is this process called?
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Question 17
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A primary function of the cell membrane is to __________.
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Question 18
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The passive movement of molecules from an area of higher concentration to an area of lower concentration is called _____.
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Question 19
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An animal cell placed in a hypertonic solution will __________.
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Question 20
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In osmosis, water always moves toward the _____ solution, that is, toward the solution with the _____ solute concentration.
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Question 21
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Which one of the following is an example of osmosis?
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Question 22
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Which term is used to describe an animal's ability to survive if the cells are exposed to a hypotonic or hypertonic environment?
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Question 23
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Plant cells can better tolerate exposure to hypotonic solutions than can animal cells. Which one of the following helps to best explain why plant cells can better tolerate hypotonic solutions?
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Question 24
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The concentration of calcium in a cell is 0.3%. The concentration of calcium in the surrounding fluid is 0.1%. How could the cell obtain more calcium?
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Question 25
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The use of energy to move molecules across a membrane defines _____.
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Question 26
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Which one of the following terms is sometimes called "cell eating"?
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Question 27
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A cell may receive a stimulus from the outside environment or from a signaling molecule __________.
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Question 28
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A characteristic of phospholipids that makes them a candidate for the first organic compounds on Earth to be related to life is their ability to __________.
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