Unit 1 Practice Problems PDF
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Northeastern University
OCR
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Summary
This OCR document is a set of practice problems for Unit 1. The problems cover various concepts in biology, including different chemical bonds, membranes, protein structures, and more. The format includes multiple choice questions.
Full Transcript
Unit 1 Practice Problems Exam 1 is 38 multiple choice questions Bring pencil and photo ID (NU ID preferred) You have whole period for exam 1. What are the different variables in an experiment? What are controls? 2. You are planning an experiment to test if a new drug is able to ac...
Unit 1 Practice Problems Exam 1 is 38 multiple choice questions Bring pencil and photo ID (NU ID preferred) You have whole period for exam 1. What are the different variables in an experiment? What are controls? 2. You are planning an experiment to test if a new drug is able to act as a ligand for the estrogen receptor. What would be a good negative control for this experiment? What would be a good positive control? 3. How are ionic and covalent bonds different from each other? 4. Describe at least two ways in which polar and non- polar bonds are different from each other. 5. What are hydrogen bonds? Where do you expect them to form and why? 6. What does pH measure and how does the pH scale work? 7. Define the terms hydrophilic and hydrophobic. What causes a molecule to be hydrophobic or hydrophilic? 1. What are the parts of a phospholipid and what chemical qualities do they have? How are they arranged to make a membrane? What other molecules are found in membranes? 2. What are the differences between cell membranes and cell walls? 3. What are the similarities and differences between saturated and unsaturated fats? 4. What are the similarities and differences between starch, glycogen, and cellulose (fiber)? 5. Why are proteins/polypeptides capable of carrying out so many different types of tasks? 1. What are the levels of protein structure? What defines them? What bonds are involved in each? 2. How do the qualities of individual amino acids affect where they end up in folded protein structures? 3. What does it mean to denature a protein? What are some things that can denature a protein? 4. Give two reasons why a protein with the correct amino acid sequence might not be functional. 5. What are chaperones? 6. What types of molecules can cross a membrane without help? What kinds need help? Why? What provides that help? 7. What type(s) of membrane transport require energy? Why? More Practice on Canvas! Quizzes with multiple choice problems Study Guides with blank lecture outlines and more short answer practice Look back at introduction lecture for more advice on studying