Biochem Chapter Pretests and Posttests

Biochem Chapter Pretests and Posttests - 1 Pretest Chapter...

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1 Pretest Chapter 1 1)What are the distinctive properties of living systems? A. complicated and highly organized B. contain structures with functional purpose C. extract and utilize energy from the environment D. remarkable fidelity for self replication Choose the correct answer. a. 2)What property renders H, O, C and N atoms so suitable to the chemistry of life? a.
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2 3)All biomolecules contain carbon. What properties of carbon make it so versatile? It: A. forms stable covalent bonds with itself B. forms stable covalent bonds with H, O, and N C. forms double bonds with itself, O and N D. has a tetrahedral arrangement of its single bonds E. forms complex 3-D structures. Choose the correct answer. a. 4) What principle underlies the structural organization of complex biomolecules? Complex molecules: a. 5) Which are the attributes of organelles? They: A. are cellular inclusions surrounded by a membrane B. contain genes C. capture energy in the form of ATP D. are dedicated to important cellular tasks E. contain vacuoles with small inclusions Choose the correct answer.
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3 a. 6) Which of the following non-covalent bonds and interactions are particularly important in maintaining membrane structure? a. 7) A major property of biomolecules, that reflects their fitness to specify life, is that they contain biological information. The information content of biomolecules results from the: A. head-to-tail polymerization of the building block units which gives the molecule structural polarity. B. sequence of the component building block units. C. H-bond, van der Waals forces and ionic interactions which hold macromolecules together. D. exclusion of water from the hydrophobic interactions which would otherwise dilute out the information. Choose the correct answer. a.
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4 Amino acids, nucleotides and monosaccharides each polymerize in a head-to-tail fashion that endows the macromolecule with a "sense" or direction to its structure -- the macromolecule has a structural polarity. Non-covalent interactions and hydrophobic interactions are important determinants of macromolecular structure and function, but do not have informational content. Learning Plan Key Question 1.4 1.9 Amino Acids Forming Polypeptides 1.9 Simple Sugars Forming Polysaccharides 1.9 Nucleotides Forming Nucleic Acid 8) The functional properties of biological molecules and biological systems depend on the ability to: a. 9) Name the organelle. Involved in packaging and processing of proteins for secretion or delivery to other organelles. a.
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5 10) Name the organelle. Involved in the oxidation of carbohydrates, lipids and amino acids with the conservation of the energy released as ATP. a. 11) Name the organelle. Contains hydrolytic enzymes with acidic pH optimums for controlled degradation of intracellular components as well
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Biochem Chapter Pretests and Posttests - 1 Pretest Chapter...

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