BIOLOGY 130 CHAPTER 1-6 STUDY QUESTIONS | VERIFIED SOLUTION

BIOLOGY 130 CHAPTER 1-6 STUDY QUESTIONS CHAPTER 2 WEEK 1 STUDY QUESTIONS Chemistry and physics are fall into which field of science? Select all that apply. A. natural science B. physical science C. life science D. social science E. hard science Feedback: Learning Objective: Define matter and elements Question 2 of 10 1.0/ 1.0 Points What functional group allows sugars (CnH2nOn) to be water soluble? Select all that apply. A. methyl B. carbonyl C. hydroxyl D. amino E. sulfhydryl Feedback: Learning Objective: Explain why carbon is important for life Question 3 of 10 1.0/ 1.0 Points Normal (homeostatic) pH level of blood serum’s pH is around 7.4. Carbonic acid is released in the blood to help maintain a pH when the blood has high hydroxyl levels. This would cause pH to change from A. basic to acidic B. basic to neutral C. neutral to basic D. acidic to 7.4 E.basic to 7.4 Feedback: Learning Objective: Discuss the role of acids, bases, and buffers in homeostasis. Question 4 of 10 1.0/ 1.0 Points After 11,200 years, approximately carbon­14 would remain in a sample of wood. A.75% B.50% C.25% D.12.5% Feedback: Learning Objective: Define matter and elements Question 5 of 10 1.0/ 1.0 Points Carbon represents less than 1% of the Earth’s crust, but is 18% of the composition of living things. Why? A.Living organisms sequester carbon to lower its toxicity to their cells. B.Cytoplasm is composed largely of a liquid form of carbon. C.Cell membranes are composed of layers of graphite. D.The unique bonding properties of carbon allow it to create a huge variety of biological molecules. E. This is a measure of waste gases like CO2 and CH4. Feedback: Learning Objective: Analyze the structure of an atom, how the isotopes of an element differ, and how atoms combine to form molecules and larger structures Question 6 of 10 1.0/ 1.0 Points Before the battery in the car is jumped, the individuals notice the hook­ups on the battery are corroded by acid. What substance can be used to clean the acid? A. orange juice B.baking soda C.urine D.black coffee E.lemons Feedback: Learning Objective: Discuss the role of acids, bases, and buffers in homeostasis Question 7 of 10 1.0/ 1.0 Points Why does water boil at a higher temperature than butter, which is non­polar? A.breaking of hydrogen bonds requires a lot of energy B. removing hydrogen from the liquid requires a lot of enegy C. energy is used to cool the water as it undergoes from liquid to gas D. energy is consumed to form hydrogen bond