Biology 1020 Exam 1 Practice Test

Biology 1020 Exam 1 Practice Test - Biology 1020 Exam 1...

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Biology 1020 Exam 1 Practice Test Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. These organic molecules have a chemical formula that is at or close to a multiple of (CH 2 O). A) carbohydrates D) nucleic acids B) lipids E) none of the above C) proteins (polypeptides) 2. Two isotopes of the same element differ in the number of: 3. The sum of all chemical reactions and energy transformations that take place in living organisms is called: 4. Which of the following is NOT true about a scientific hypothesis? 5. These organic molecules are composed of amino acid monomers. A) carbohydrates D) nucleic acids B) lipids E) none of the above C) proteins (polypeptides) 6. The formation of a disulfide bridge between cysteines in a single polypeptide chain results in a/an ____ bond and is considered part of the ___ structure. 7. Related genera are grouped into a/an:
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8. A doctor is performing an experiment to test the hypothesis that aspirin reduces the risk of heart attacks in people with high blood pressure. Each member of her experimental group of 100 people with high blood pressure is taking an aspirin once a day. Which of the following would make the best control group for her experiment?
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