Biol100B_Sample MidtermI

Biol100B_Sample MidtermI - Below are some practice...

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Below are some practice questions for Midterm 1. These questions may be repeated on the actual exam; therefore, answers will not be provided. Please note ALL material covered in lecture is “fair game” for the actual exam, even if it is not covered on the practice exam. The actual exam will have about double the number questions ( approx. 50-60 questions) Multiple Choice Choose the one alternative that best completes the statement or answers the question. (2 points each) 1. What molecule is needed to break down large organic molecules? a. sugar. b. carbon. c. ATP. d. water. e. digestive system. 2. What determines the atomic number of an atom? a. the electrons. b. the neutrons. c. the protons. d. the atomic weight. . 3. Solutions that have a higher concentration of dissolved particles than does a cell’s cytoplasm, and thus cause water to ________ the cell by osmosis, are termed __________. a. Enter: hypertonic b. Leave: hypertonic c. Enter: hypotonic d. Leave: hypotonic 4. What is ATP? a. a carbohydrate used to carry energy b. a lipid used to carry energy c. a protein used to carry energy d. a nucleic acid used to carry energy 5. Ribose is a monosaccharide with ______ carbons, _____ hydrogens, and _____ oxygens a. 5, 12, 5 b. 5, 5, 5 c. 5, 10, 5
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d. 1, 2, 1 6. A hydrophobic molecule: a. is attracted to water. b. is afraid of water c. is neutral in water. d. is sometimes attracted and sometimes avoids water. e.
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Biol100B_Sample MidtermI - Below are some practice...

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