Biol 1090 Mock Midtern Winter 2012

Biol 1090 Mock Midtern Winter 2012 - Name: Student ID#:...

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Name: Student ID#: BIOL*1090 Introduction to Molecular and Cellular Biology Mock Midterm Total marks: 50 Total time: 75 minutes It is best to write this mock midterm under EXAM CONDITIONS Do your best to write it individually and within 75 minutes Attempt every question Disclaimer: This mock midterm was created by the SLG leaders of this course. It can potentially contain errors that may or may not be apparent unless the SLG midterm session is attended. This mock midterm is not affiliated with the department of Molecular and Cellular Biology. The mock midterm will be covered in the following times: Mikaela Tuesday 7-10pm Lib 359 Naythrah Thurs. 2:30-5:30pm Library 100A (Forster Room) Celine Thursday 6-9pm Library 370
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Section A Select the BEST answer to the question provided. A correct answer is worth one mark. Section A is a total of 25 marks. 1. Which of the following best describes biological membranes? a) It is difficult for lipids to move laterally within a leaflet b) They are dynamic structures of lipids and proteins c) They allow many molecules to pass freely d) Lipids move easily from one leaflet to the other e) They are a fairly rigid structure 2. What happens when a bacterium increases the proportion of saturated lipids in a plasma membrane? a) The plasma membrane will become more rigid b) The plasma membrane will create an opening for molecules to pass c) The plasma membrane will become more fluid d) The plasma membrane’s lipid rafts will break apart e) The leaflets will separate 3. In biological membranes, which best describes the transition temperature? a) The temperature below which a lipid bilayer becomes fluid b) The temperature at which the rate of diffusion increases c) The temperature above which a lipid bilayer becomes a crystalline gel d) The temperature above which a lipid bilayer becomes fluid e) The temperature at which the lipid bilayer stays rigid 4. Which of the following is not part of a virion? a) A genome b) A nucleoid c) A protein coat d) A capsule e) A nucleolus
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5. Which of the channels are transport mediated? a)
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Biol 1090 Mock Midtern Winter 2012 - Name: Student ID#:...

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