practice exam 1 - BSC 2010, EXAM ONE Instructor: Phelps...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
BSC 2010, EXAM ONE FORM A Instructor: Phelps Date: Sept 16, 2005 There are 40 questions on 8 pages. You will have 50 minutes to complete all questions. No extra time will be granted. Please check to make sure that all pages are present, intact, and in the correct order. Please mark your answers on the exam, as well as on the scantron sheet, in case there are any problems. PRINT AND SIGN YOUR NAME . Good luck! Name ________________________________________ SSN _________________________________________ Questions 1-31, recall and comprehension MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) The slight negative charge at one end of one water molecule is attracted to the slight positive charge of another water molecule. What is this attraction called? A) an ionic bond B) a hydrogen bond C) a hydrophobic bond D) a covalent bond E) a hydrophilic bond 2) What do cohesion, surface tension, and adhesion have in common with reference to water? A) All are properties related to hydrogen bonding. B) All increase when temperature increases. C) All are produced by ionic bonding. D) All have to do with nonpolar covalent bonds. E) C and D only 3) Which property of the carbon atom gives it compatibility with a greater number of different elements than any other type of atom? A) Carbon has a valence of 4. B) Carbon forms ionic bonds. C) Carbon has 6 to 8 neutrons. D) A and C only E) A, B, and C 4) What is the reason why hydrocarbons are not soluble in water? A) The majority of their bonds are polar ionic carbon-to-hydrogen linkages. B) They exhibit considerable molecular complexity and diversity. C) The majority of their bonds are nonpolar covalent carbon-to-hydrogen linkages. D) They are lighter than water. E) They are hydrophilic.
Background image of page 1

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

View Full DocumentRight Arrow Icon
5) Which of the following is not one of the four major groups of macromolecules found in living organisms? A) carbohydrates B) lipids C) proteins D) nucleic acids E) salts 6) Dehydration reactions are used in forming which of the following compounds? A) polysaccharides B) triacylglycerides C) proteins D) A and C only E) A, B, and C 7) The R group or side chain of the amino acid serine is -CH 2 -OH. The R group or side chain of the amino acid alanine is –CH 3 . Where would you expect to find these amino acids in an integral transport protein suspended in a lipid bilayer? A) Both serine and alanine would be in the hydrophobic interior of the protein. B) Both serine and alanine would be on the hydrophobic exterior of the protein. C) Both serine and alanine would be in the interior and on the exterior of the protein. D) Serine would be in the hydrophilic pore, and alanine would be on the exterior of the protein. E) Alanine would be in the hydrophilic exterior, and serine would be on the hydrophobic interior.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 9

practice exam 1 - BSC 2010, EXAM ONE Instructor: Phelps...

This preview shows document pages 1 - 3. Sign up to view the full document.

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