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Biology 114 Final Exam; Questions & Answers 100% Verified

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Biology 114 Final Exam; Questions & Answers 100% Verified What happens when a protein is denatured? Correct answer-It loses its 3-dimensional structure (shape) and stops functioning normally. Which best defines a gene in the molecular sense of the word? Correct answer-a segment of DNA that ...

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  • August 9, 2024
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  • 2024/2025
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Biology 114 Final Exam; Questions & Answers
100% Verified
What happens when a protein is denatured? Correct answer-It loses its 3-dimensional
structure (shape) and stops functioning normally.




Which best defines a gene in the molecular sense of the word? Correct answer-a
segment of DNA that encodes the primary structure of a protein




unsaturated fatty acid Correct answer-




Which of these has "kinky" fatty acid tails, is liquid at room temperature, and is healthy to eat?
Correct answer-unsaturated fat




Most of these are bacteria or fungi. They are vitally important to chemical cycling because they
consume dead material and release simpler nutrients. Correct answer-decomposers




Like gasoline, ___________________ are mostly made of long chains of carbon and hydrogen.
They are also rich in energy. Correct answer-triglycerides (fats and oils)




Here is a scenario excerpted from a recent post in ScienceNow, a blog produced by the
American Academy for the Advancement of Science. "A drug used for decades to treat high
blood pressure and other conditions has shown promise in a small clinical trial for autism...



Several lines of evidence suggest that autism interferes with the neurotransmitter GABA...
Bumetanide may enhance the effects of GABA... In a new study, researchers... recruited 60

, Biology 114 Final Exam; Questions & Answers
100% Verified
autistic children between the ages of 3 and 11 and randomly assigned them to receive either a
daily pill of bumetanide or a placebo. (Neither the children's parents nor the researchers who
assessed the children knew who received the actual drug.)




As a group, those who got bumetanide improved by 5.6 points on a 60-point scale that's often
used to assess behaviors related to autism, the researchers report today in Translational
Psychiatry. That was enough to nudge the group a Correct answer-Patient's drug status
(bumetanide or placebo) - independent variable



60-point scale used to measure autistic behaviors -

dependent variable



30 children who received the drug bumetanide - experimental group




30 children who received a placebo but were otherwise treated the same as those who got the
drug -

control group



Modern dog breeds all descend from wolves, but through __________________ a vast range of
dog shapes, sizes, and behaviors have been produced. Correct answer-artificial selection




cholesterol Correct answer-

, Biology 114 Final Exam; Questions & Answers
100% Verified
amino acid Correct answer-




cells contain a nucleus and other organelles;

eukaryote or prokaryote? Correct answer-eukaryote




a plant or animal;

eukaryote or prokaryote? Correct answer-eukaryote




cells do not have a nucleus; DNA floats free;

eukaryote or prokaryote? Correct answer-prokaryote




protist, such as an amoeba or a seaweed;

eukaryote or prokaryote? Correct answer-eukaryote




bacterium;

eukaryote or prokaryote? Correct answer-prokaryote




A cell is malfunctioning, causing a health problem. To figure out why the cell has gone haywire,
you would probably need to investigate at the next level "down" and study the cell's
_____________. Correct answer-molecules and organelles

, Biology 114 Final Exam; Questions & Answers
100% Verified
As ___________________ break down, they emit energy, making them very useful for medical
research but also potentially dangerous. Correct answer-radioactive isotopes




Which of the following best describes a scientific theory? Correct answer-a well-
developed idea that has been tested many times and helps us predict what will happen and why




Which kinds of ideas are generally outside the bounds of science / nonscientific in nature?
Correct answer-Explanations that involve supernatural beings and/or value judgments




In ecosystems, chemicals ___________; energy __________. Correct answer-Chemicals
are recycled;

energy flows through.




Na (sodium) becomes a positively charged Na+ ion when it Correct answer-loses an outer
electron




Salt and sugar are both... Hydrophilic or Hydrophilic? Correct answer-Hydrophilic




Oils and waxes are... Hydrophilic or Hydrophilic? Correct answer-Hydrophobic




Carbohydrates have polar regions and therefore are generally... Hydrophilic or Hydrophilic?
Correct answer-Hydrophilic

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