Sample%20Midterm - Name:_ Student ID#:_ BIOL2210:...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Name:____________________________________ Student ID#:_______________________________ BIOL2210: Introductory Cell Biology Sample Midterm Examination Total marks: 65 Total time: 75 minutes 1. PRINT your name and student number in the spaces provided at the top left corner of this page AND on the Test Scoring Answer Sheet. 2. This examination consists of three parts numbered Section A, B, and C. Please attempt ALL questions. 3. Section A will be answered IN PENCIL on the provided Test Scoring Answer Sheet. ONLY Test Scoring Answer Sheets will be marked for Section A. 4. Sections B and C will be answered in the spaces provided on the question paper itself. Questions answered in pencil will not be considered for re-marking. Please do not use red ink. Marks Section B 1. 2. 3. Section C 4. Total for B and C
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Section A Select the BEST answer to the question provided and mark it on your Test Score Answering Sheet. A correct answer is worth one mark. Section A is worth a total of 25 marks . 1. Which of the following scientists was responsible for proposing the third tenet of the Cell Theory? a) Robert Brown b) Matthias Schleiden c) Rudolf Virchow d) Theodor Schwann e) Louis Pasteur 2. Why are most cells small in size? a) In order to maximize surface area-to-volume ratio for exchange between the cell and its environment. b) In order to maintain an efficient diffusion rate within the cytoplasm. c) In order to maintain essential concentrations of compounds needed for various processes within the cell. d) All of the above e) None of the above 3. The high concentration of Na + outside a eukaryotic cell, relative to the interior, is maintained by a) passive diffusion. b) a facilitative transporter. c) a voltage-gated channel. d) a ligand-gated channel. e) direct active transport. 4. How does a deficiency in vitamin C affect the cell? a) It results in the synthesis of defective collagen α -chains which fail to form a stable triple helix. b) It causes excessive hydrogen bonding between hydroxyl groups of proline and lysine, resulting in decreased tissue elasticity. c) It leads to increased interactions between collagen and elastin, resulting in decreased tissue elasticity. d) It prevents the removal of the C and N terminal amino acids from procollagen by procollagen peptidase. e) None of the above.
Background image of page 2
5. The polarity of an individual microfilament can be demonstrated by "decorating" it with this molecule and then viewing the microfilament using electron microscopy. a) F-actin b) S1 myosin fragment c) talin d) α -actinin e) more than one of the above 6. Which of the following characteristics is shared by prokaryotes and eukaryotes? a) The presence of a nucleus b) The presence of mitochondria c) Extensive RNA processing d) The presence of ribosomes e) None of the above 7. In sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE), individual proteins migrate in the electric field at rates determined by their a) density b) size c) charge d) shape e) more than one of the above
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/09/2011 for the course MCB 2210 taught by Professor R.mullen,g.vandermerwe during the Winter '09 term at University of Guelph.

Page1 / 18

Sample%20Midterm - Name:_ Student ID#:_ BIOL2210:...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online