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Chemical and Physical Foundations of Biological Systems
An object is projected from the ground at an angle of 30o above the horizontal and returns to the ground 8 seconds later. What is the object’s maximum height?
40 m
80 m
160 m
There is not enough information to solve.
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Biological and Biochemical Foundations of Living Systems
All of the following types of bonds are involved in synthesizing double-stranded DNA EXCEPT:
β-N-glycosidic linkages.
disulfide bridges.
phosphodiester bonds.
hydrogen bonds.
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Psychological, Social, and Biological Foundations of Behavior
According to the elaboration likelihood model, which of the following does NOT predict whether a message will be persuasive?
The length of the message
The attractiveness of the person delivering the message
The truthfulness of the message
The trustworthiness of the person delivering the message
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Chemical and Physical Foundations of Biological Systems
Which of the following best characterizes the differences between fatty acids and phospholipids?
Fatty acids have two tails and form micelles; phospholipids have one tail and form membranes.
Fatty acids have two tails and form membranes; phospholipids have two tails and form micelles.
Fatty acids have one tail and form micelles; phospholipids have two tails and form membranes.
Fatty acids have one tail and form membranes; phospholipids have two tails and form micelles.
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Psychological, Social, and Biological Foundations of Behavior
Cooley’s looking-glass self states that a person’s sense of self is the result of the perception of others. The sociological theory that best captures this idea is:
conflict theory.
labeling theory.
symbolic interaction theory.
functionalist theory.
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Biological and Biochemical Foundations of Living Systems
Which of the following organisms would be forced to undergo fermentation in the presence of a toxin that blocks oxidative phosphorylation in mitochondria?
Escherichia coli, a facultative anaerobic bacterium
Saccharomyces cerevisiae, a facultative anaerobic yeast
Propionibacterium acnes, an obligate anaerobic bacterium
Mycobacterium tuberculosis, an obligate aerobic bacterium
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Psychological, Social, and Biological Foundations of Behavior
Researchers want to explore the experience of subjects as they engage in the Stroop task, a task in selective attention that measures the ability to distinguish between discordant stimuli. The researchers are not merely interested in response time but want to know qualitative details about the subjects’ internal experiences. Which of the following methodologies should the researchers implement?
Correlational method
Observational method
Survey method
Phenomenological method
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Chemical and Physical Foundations of Biological Systems
Compound J reacts with Compound K at 20oC to form a mixture of two products, L (20%) and M (80%). When the reaction is performed at 60oC, Compounds L and M are formed in 80% and 20% yields, respectively. When the reaction mixture obtained at 20oC is heated to 60oC and allowed to stand overnight, the composition of the mixture slowly changes to 80% L/20% M and remains invariant at longer reaction times. Which of the following statements is most consistent with the information given above?
An equilibrium mixture of L and M is obtained at 60oC.
The activation energy for formation of L is lower than that for M.
M is more stable than L.
L is formed faster than M.
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Biological and Biochemical Foundations of Living Systems
Which of the following would best describe a scenario involving directional selection?
Turtles living on an island become physically separated into two groups when a tropical storm divides the habitat and, eventually, they are no longer able to mate.
Breeding creates dogs that produce little to no dander and thus are hypoallergenic for pet owners with allergies.
The ability to collect a wide variety of food is valued by a certain type of monkey and females who exhibit this skill are able to attract more sexual partners.
Field mice that are able to escape into small spaces are less likely to be consumed by predators and thus larger mice are selected against over time.
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Biological and Biochemical Foundations of Living Systems
Bisphosphonates are a class of medications that function to inhibit bone resorption. They are frequently used by physicians to prevent or reduce the bone loss that occurs during osteoporosis. Which of the following is a potential mechanism of action for bisphosphonates?
Increase calcium absorption in the small intestine
Trigger apoptosis, or programmed cell death, in osteoclasts
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