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Question 1 Which of the following biological molecules contain peptide bonds? Proteins Carbohydrates Lipids Nucleic Acids Bloom’s level: Knowledge/Understanding.

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Presentation on theme: "Question 1 Which of the following biological molecules contain peptide bonds? Proteins Carbohydrates Lipids Nucleic Acids Bloom’s level: Knowledge/Understanding."— Presentation transcript:

1 Question 1 Which of the following biological molecules contain peptide bonds? Proteins Carbohydrates Lipids Nucleic Acids Bloom’s level: Knowledge/Understanding

2 Question 2 What is the function of chaperonin proteins?
Denaturation of polypeptides Assembling amino acids Regulation of gene expression Folding proteins None of the above Bloom’s level: Knowledge/Understanding

3 Question 3 Which amino acid is responsible for the formation of disulfide bonds? Alanine Proline Tyrosine Cysteine Guanine Bloom’s level: Knowledge/Understanding

4 Question 4 The addition of water to break a chemical bond is termed –
Dehydration synthesis Hydrolysis Condensation Catabolism Disassociation Bloom’s level: Knowledge/Understanding

5 Question 5 Which lipid forms membranes? Triglycerides Steroids
Phospholipids Terpenes Saturated fates Bloom’s level: Knowledge/Understanding

6 Question 6 Which of the following is not a function of proteins?
Coding for polypeptides Catalyzes chemical reactions Transport of material Structural components of tissues All of the above are protein functions Bloom’s level: Knowledge/Understanding

7 Question 7 The 2 strands of DNA are covalently bonded together. These bonds are called phosphodiester bonds. This is true This is false Bloom’s level: Knowledge/Understanding

8 Question 8 Which of the following is not part of a nucleotide?
5 carbon sugar Phosphate group Fatty acid chain Nitrogenous base Bloom’s level: Knowledge/Understanding

9 Question 9 The energy in lipids is stored in the C-H bonds.
This is true This is false Bloom’s level: Knowledge/Understanding

10 Question 10 Which of the following is an amino group? -OH -C=O -COOH
-SH -NH2 Bloom’s level: Knowledge/Understanding

11 Question 11 Dehydration synthesis – Is used to link monomers
Removes water to form bonds Is involved in protein synthesis Can form disaccharides All of the above Bloom’s level: Application

12 Question 12 Lincosamides are a class of antibiotics that inhibit peptide bond formation. What type of biological molecule would be affected? Lipids Proteins Nucleic Acids Carbohydrates Bloom’s level: Application

13 Question 13 If a chromosome contains 20% thymine, how much guanine should it have? 10% 20% 30% 40% Bloom’s level: Application

14 Question 14 A person is lactose intolerant. What type of molecule is lactose? Monosaccharide Disaccharide Oligosaccharide Polysaccharide Bloom’s level: Application

15 Question 15 The alpha-toxin produced by the bacterium that cause gas gangrene is a phospholipidase enzyme. How does this toxin kill cells? Disruption of protein synthesis Prevention of DNA replication Breaking down the plasma membrane Blocking nutrient absorption Stopping biochemical pathways Bloom’s level: Application

16 Question 16 What happens when a lipid is hydrogenated?
Hydrogen is added to the fatty acid chains The melting point is raised The lipid is converted into a saturated fat The fatty acid chain is straightened All of the above Bloom’s level: Application

17 Question 17 You worked at a fish hatchery and wanted to set up an experiment to deliver the female sex hormone, estrogen, to some fish. What type of molecule is estrogen? Triglyceride Polypeptide Steroid Terpene Disaccharide Bloom’s level: Application

18 Question 18 If a strand of DNA has a sequence
5’-ATCCTAG-3’, what would be the complementary sequence? 5’-CGAAGAT-3’ 5’-TAGGATC-3’ 3’-TAGGATC-5’ 3’-CGAAGTC-5’ Bloom’s level: Application

19 Question 19 If a cell was grown in a growth medium that has a radioactive sulfur isotope which class of biomolecules will show the presence of the isotope? Nucleic acids Carbohydrates Lipids Proteins Bloom’s level: Analysis

20 Answer Key to mc questions
D B C B (False) A (True) E E B C D

21 How is an enzyme able to increase the rate of a chemical reaction?
Provide thorough answers key to the following questions. Write your answers as though you were providing an answer key for your fellow students, explaining your answers as though you were teaching the topics to your peers. Write your answers out in your class notebooks. I will call on students randomly in class on 2/20 to read their answers to the class. Note: I will be calling on students who don’t normally speak up in class . Describe the structure of an ATP molecule and where is the energy stored? Compare and contrast potential and kinetic energy. Give an example of each. Discuss delta G (ΔG) and explain how it relates to biochemical reactions (what are the components of ΔG?). Discuss the 3 main parts of glycolysis and the reactions that occur in each part. In a biochemical pathway, explain how a biochemical reaction with a positive ΔG can proceed in a forward direction (from reactant to product) within a biochemical pathway. Explain how feedback inhibition allows for the self-regulation of a biochemical pathway. Use the terms anabolism and catabolism to describe biochemical pathways and the role of ATP in these two types of pathways How is an enzyme able to increase the rate of a chemical reaction? Compare and contrast competitive and non-competitive inhibition.

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