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Biology 101 Unit 1 Practice Exam Questions and Answers
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Biology 101 Unit 1 Practice Exam Questions and Answers
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Biology 101 Unit 1 Practice ExamQuestions and Answers
What is NOT a characteristic shared by all living things? - Answer-Ability to generate
energy through photosynthesis
What is the best illustrate the hierarchical organization of living systems? - Answer-
chloroplast, plant cell, tree
In biology, a theory is best described as - Answer-a scientifically accepted explanation
based accumulated evidence
In the process of scientific inquiry, the next step after generating a hypothesis is usually
to - Answer-make one or more predictions.
Charles Darwin's key contribution to our understanding of evolution was introducing the
concept that - Answer-natural selection was the mechanism of evolutionary change.
What about natural selection is true? - Answer-There must be heritable variation in a
trait for it to evolve by natural selection
What observation provides evidence that whales evolved from terrestrial mammals? -
Answer-The forelimbs of whales are made up of the same arrangement of bones as
other animals.
What is an example of a nucleic acid? - Answer-Uracil
What is an example of a carbohydrate? - Answer-Cellulose
True or False: All proteins have quarternary structure? - Answer-False
What characteristic would allow you to determine if a fatty acid was in cis or trans
configuration? - Answer-The arrangement of the hydrogen atoms
The _____ structure of a protein refers to the presence of hydrogen bonds resulting in
helices and pleated sheet structures. - Answer-Secondary
In what molecule would you find a fatty acid? - Answer-Phosoplipid
Trans fats are a health concern because eating trans fats - Answer-increases LDL and
lowers HDL cholesterol levels
What statement regarding a protein denaturation is NOT true? - Answer-Denaturation
does not usually affect protein function
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