Biology > QUESTIONS & ANSWERS > BIOD 171 Final Exam Possible 2022 Questions and Answers (All)

BIOD 171 Final Exam Possible 2022 Questions and Answers

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BIOD 171 Final Exam Possible 2022 Questions and Answers True/False. A virus is classified as a microbe. Correct answer- True True or False: The smallest biological unit of life is the molecule. Correct answer- False -smallest unit of life is the cell. At a generalized level, all cells are comprised of what? Correct answer- Proteins, lipids, nucleic acids, and Polysaccharides How many different types of amino acids are available from which to make proteins? Correct answer- 20 How many amino acids are classified as being essential amino acids? Correct answer- 9 What are the two major types of nucleic acids and their roles? Correct answer- DNA (deoxyribonucleic acids): contains genetic material and hereditary info in living organisms, RNA (ribonucleic acid): decodes sequence of hereditary info that is found in DNA Complete the following DNA strand, and indicate how many bonds are formed for each complementary pair: 3' GGTCATCG 5' 5' CC AGC 3' Correct answer- 3' GGTCATCG 5', 5' CCAGTAGC 3', 2 bonds between A & T, 3 bonds between C & G The plasma membrane (select all that are true): Correct answer- Restricts movement of materials in and out of the cell, Prevents essential nutrients from escaping How many carbon atoms are present in the monosaccharide glucose? Correct answer- 6 The molecular formula of Glucose is Correct answer- C6H12O6 True of False: The genetic material within a prokaryotic cell is contained within a membrane-enclosed region. Correct answer- False , Only eukaryotic cells contain genetics in nucleus. True or False: Prokaryotic cells can be subdivided into Bacteria and Archaea. Correct answer- True True or False: Archaea is noted for its ability to survive under harsh conditions. Correct answer- True Which of the following microorganisms are considered to be Eukarya? Select all that apply. Correct answer- Animalia , Plantae , Fungi, Protista Microorganisms classified as _________ obtain most of their energy by converting light energy into chemical energy. Correct answer- Plantae Which of the following are considered Protista? Select all that apply. Correct answer- Algae , Amoeba True or False: Protista retain a unicellular classification, as they are unable to form tissue layers. Correct answer- True The function of the lysosome is (select all that apply): Correct answer- Waste disposal via hydrolytic enzymes Identify the following cellular components by matching the number with the description. Correct answer- 1 C Nucleus, 2 G Lysosome, 3 E Plasma membrane, 4 B Golgi apparatus, 5 A Rough endoplasmic reticulum, The combination of the cell membrane and the outer membrane is referred to as the (select all that apply): Correct answer- Cell envelope The function of the Golgi is (select all that apply): Correct answer- Protein modification and distribution True or False. All multicellular microorganisms classified as Animalia are autotropic. Correct answer- False True or False: As movement requires energy, metabolism can be defined as a controlled set of biochemical reactions that occur in only motile organisms in order to maintain life. Correct answer- False Metabolism occurs in all living organisms, not just those that move. True or False: Enzymes are polysaccharides that catalyze chemical reactions Correct answer- False Enzymes are proteins that catalyze chemical reactions. What is a cofactor? And give a general example. Correct answer- A cofactor is a small chemical compound and helps an enzyme to catabolize a general example is metal ions.

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