Portage Learning BIOD 171 Microbiology Lecture Exams Questions and Answers, Exams of Nursing

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**1. True or False: A virus is considered a microorganism. False. Viruses are not living and as such are not considered microorganisms. Viruses can, however, be classified as microbes, a more general term that includes microorganisms and viruses.

2. What is the smallest biological unit of life? A cell.
3. At a generalized level, all cells are comprised of what? Macromolecules* *A student may also answer: Proteins, Lipids, Nucleic acids and Polysaccharides but they must answer with all four to be fully correct.
4. How many different types of amino acids are available** from which

Portage Learning BIOD 171 Microbiology

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Lecture Exams Questions and Answers

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to make proteins? 20

2. Define an essential amino acid. An essential amino acid cannot be produced by the human body and as such must be take in from the environment through alternative sources (i.e) food. 1. What are the two major types of nucleic acids and their roles? DNA- deoxyribonu cleic acid RNA- Ribonucleic acid DNA- Cellular life has DNA and a role that DNA has is long- term storage of information, it holds the characteristics of

Portage Learning BIOD 171 Microbiology

Lecture Exams Questions and Answers

Lecture Exams Questions and Answers

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living organisms. RNA- Is the carrier of information in form of amino acid sequence. It converts the information in the DNA and synthesizes proteins

Portage Learning BIOD 171 Microbiology

Lecture Exams Questions and Answers

Lecture Exams Questions and Answers

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B. Is often a triple layer comprised of lipids C. Prevents essential nutrients from escaping D. Contains hydrophobic tails pointing outward A and C

2. How many carbon atoms are present in the monosaccharide glucose? A. 1 B. 3 C. 6 D. 12

Portage Learning BIOD 171 Microbiology

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Lecture Exams Questions and Answers

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C. The molecular formula of Glucose is C6H12O True of False: The genetic material within a prokaryotic cell is contained within a membrane-enclosed region. False. Only eukaryotic cells contain its genetic material within a nucleus True or False: Prokaryotic cells can be subdivided into Bacteria and Archaea. True Describe the 4 basic bacterial morphologies. Coccus (round/spherical), bacillus (rod), vibrio (curved rod) or spirillum (spiral/corkscrew). True or False: Archaea is noted for its ability to survive

Portage Learning BIOD 171 Microbiology

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Lecture Exams Questions and Answers

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True 3.Microorganisms classified as Plantae obtain most of their energy by converting energy into energy. Light (sunlight); chemical (sugars)

1. A defining characteristic of fungi is the presence of chitin in the cell walls. Which of following also contain chitin? Select all that apply. A.Mushrooms B.Bacteria C. Yeast D.Molds

Portage Learning BIOD 171 Microbiology

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Lecture Exams Questions and Answers

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A, C and D all contain chitin. 2.True or False: A defining characteristic of Protista is the inability of colonies to form tissue layers. True.

Portage Learning BIOD 171 Microbiology

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Lecture Exams Questions and Answers

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C. To produce energy (ATP) D.Protein modification and distribution E. Waste disposal via hydrolytic enzymes B. Ribosomes are located in the cytoplasm of prokaryotic cells and in the ER of eukaryotic cells. 1.Identify the following cellular components by matching the number with the description.

Portage Learning BIOD 171 Microbiology

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Lecture Exams Questions and Answers

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A.Cell wall B.Lysosome C. Centriole D.Rough endoplasmic reticulum E. Plasma membrane F.Nucleus G. Golgi apparatus

Portage Learning BIOD 171 Microbiology

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Lecture Exams Questions and Answers

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3.What are usually metal ions known to assists enzyme during the catalysis reaction? Cofactors are usually metal ions and assist enzyme during the catalysis reaction. 1.Define catabolism. Catabolism is the process of breaking down larger molecules into useful energy sources. 2.Upon cellular injury, which metabolic process is involved during the growth and repair phases of the cell? The anabolic process would be active as it (by definition) is involved in the building up of small complexes into larger complexes.

Portage Learning BIOD 171 Microbiology

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Lecture Exams Questions and Answers

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1.Describe the energy transfer process relative to both ATP and ADP. ATP has the energy (phosphate group) to donate while ADP can accept energy in the form of a phosphate group. Thus, ATP can be reduced (ATP →ADP + Pi) while ADP can be built into ATP (ADP + Pi →ATP).

2. An organism that derives its energy (generates ATP) from photons of light is called a? Phototrophic microorganism. An organism that derives its energy by removing electrons from elemental sulfur would be classified as a?

Portage Learning BIOD 171 Microbiology

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Lecture Exams Questions and Answers

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transport chain (ETC). 2.What is the most energetic transition in the catabolism of glucose? The electron transport chain yields 34 ATP while both glycolysis and fermentation (or respiration) each yield only 2 ATP. 3.Identify the reactants of the following chemical equation: Glucose + 2NAD+ → 2 NADH + 2 Pyruvate + 2 ATP The reactants are to the left of the arrow: Glucose and 2NAD+ 4.The presence of what molecule ‘signals’ to the cell that glycolysis is about to start?

Portage Learning BIOD 171 Microbiology

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Glucose-6-phosphate (G6P) 5.True or False: In the absence of oxygen fermentation produces 2 ATP. False. Fermentation only reduces NADH back to NAD+ 1.What is the primary byproduct of the TCA cycle? Select all that apply. A.NAD+ B.FAD

Portage Learning BIOD 171 Microbiology

Lecture Exams Questions and Answers