BIO152 - Sample Midterm Questions

BIO152 - Sample Midterm Questions - BIO152: Sample Midterm...

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BIO152: Sample Midterm Exam Questions Dr. F. Rawle 1. In the Linnaean classification system, which taxon would generally include the largest number of species? A. family B. order C. genus D. phylum E. population 2. Which of the following is not a property of liquid water? A. Its density is greater than ice. B. Its specific heat is higher than that for most other substances. C. It is polar. D. Its heat of vaporization is lower than that for most other substances. E. All of the above statements are properties of water 3. A solution with a pH of 5 has how many more protons in it than a solution with a pH of 7? A. 2 times B. 5 times C. 10 times D. 100 times E. 1000 times 5. What is the difference between a ribonucleotide and a deoxyribonucleotide? A. Ribonucleotides contain a phosphate group B. Ribonucleotides contain a sugar with 5 carbon atoms C. Ribonucleotides have a hydroxyl group on the 2 carbon of their sugar subunit D. Ribonucleotides have a hydrogen atom on the 1 carbon of their sugar subunit E. All of the above 6. Why do many researchers consider RNA to be the best candidate for the first life-form? A. It is simple in structure. B. It carries more information than any other molecule. C. It is capable of self-replication and catalysis. D. All of its nucleotide components have been created under laboratory conditions that mimic early Earth. E. All of the above. 7. Dairy cattle were unknown in Thai culture until recently, and 97% of Thai people are lactose intolerant as adults. Which explanation for such a widespread lactose intolerance is most likely correct? A. Allergies are becoming more common in humans as more chemicals are being encountered during longer lifetimes. B. Evolutionarily, producing an enzyme to break down a sugar that will never be encountered is wasteful. C. The ability to digest sugar in milk is determined by environment, and most humans are not exposed to milk as a good source beyond childhood years. D. There is no good explanation for this situation in humans.
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BIO152: Sample Midterm Exam Questions Dr. F. Rawle 12. Which would be the most accurate endomembrane route through which a protein is secreted from a cell? A. Golgi apparatus lysosome vesicles plasma membrane B. plasmid plasma membrane nuclear envelope smooth endoplasmic reticulum C. nuclear envelope vesicles Golgi apparatus plasma membrane D. rough endoplasmic reticulum lysosomes vesicles cell membrane E. rough endoplasmic reticulum Golgi apparatus vesicles plasma membrane 13. How is the structure of kinesin related to its function? A. Kinesin has two intertwined polypeptides that make up the stalk and enable it to contract and shorten. B. The kinesin tail has an ATP binding site to fuel its activities.
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This note was uploaded on 11/30/2010 for the course BIO BIO152 taught by Professor Cordon during the Fall '09 term at University of Toronto.

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BIO152 - Sample Midterm Questions - BIO152: Sample Midterm...

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