Bio Final Exam

Biology Final Answers

1) List the four major categories of biological molecules, identify the principle characteristics of each, and give common examples of each.

2) Correctly state the testable null hypothesis for the question, “is it a nice day?” Be aware that you may have to establish some boundaries or make some definitions for this to be testable.

3) Define life (hint: look in your textbook).

The assets or worth that make out living organisms from dead organisms and lifeless matter, manifested in functions such as metabolism, growth, reproduction, and response to stimuli or adjustment to the environment derive from within the organism.

4) Match the following

a. Covalent Bond i. Electrons are completely lost by one participant in the bond

b. Ionic Bond ii. Molecules are attracted to each other by unequal charge distribution

c. Hydrogen Bond iii. Electrons are shared between the participants in the bond

a) Covalent Bond = Electrons are shared between the participants in the bond.

b) Hydrogen Bond = Molecules are attracted to each other by unequal charge distribution.

c) Ionic Bond = Electrons are completely lost by one participant in the bond.

5) If you know that 21% of the nucleotide bases in the DNA of a cell is Adenine, how much of it must be guanine? (think about what you know of the pairing of bases in a DNA double helix and don't over think this).

6) Compare and contrast photosynthesis and cellular respiration. Pay particular attention to the direction of energy flow and the role of energy carrying molecules like ATP. Keep your answer to 1 paragraph, I don’t want diagrams, just a demonstration that you understand the processes.

7) Design an experiment (complete with correctly stated hypotheses) to demonstrate that photosynthesis liberates oxygen from water and respiration liberates CO2 from sugar.

8) Explain the situation that occurs when you exercise anaerobically and build up lactate in your muscles (that is what...