- Study guides, Class notes & Summaries

metabolism Correct Answer-the sum of all chemical reactions(anabolic and catobolic) within a living organism. OR and energy balance act anabolism Correct Answer-(synthesis), chemical reactions in which energy is used to synthesize large molecules from simpler componenets Example: 1) Amino acid + Amino acid 2) capsule synthesis in bacteria dehydration syntheisis Correct Answer-removal of water to create a larger molecule catabolism Correct Answer-(hydrolysis), the chemical breakdown ...

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40 pages

Written in 2023/2024

Grade A+

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Innate resistance Correct Answer-bodies first and second line of defense First line of defense Correct Answer-to prevent pathogens entering the body, includes the skin and mucous membranes of respiratory, digestive, urinary, and reproductive systems, lacrimal apparatus, normal flora lacrimal apparatus function Correct Answer-produces, distributes, and removes tears normal flora Correct Answer-Microorganisms that reside in or on the body without causing disease Epidermis Correct Answe...

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8 pages

Written in 2023/2024

Grade A+

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Archaea Correct Answer-prokaryote cell wall: pseudomurein live in extreme environments include: halophil, thermophil, and methanogen fungi Correct Answer-eukaryote cell wall: chitin yeast - unicell but mold and mushroom are multicelled and made up mycelia (which are made of hyphae) protozoa Correct Answer-eukaryote can be free living or parasitic motile via: pseudopod (ex. amoeba), cilia (ex. paramecium), or flagella (ex. trichomonas vaginalis) plasmodium vivax is a protozoan al...

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27 pages

Written in 2023/2024

Grade A+

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classifications of microbes Correct Answer-bacteria, archaea, fungi, protozoa, algae, and small multicellular animals bacteria & archaea Correct Answer-prokaryotes, unicellular & lack nucleus, much smaller than eukaryotes, found in moist environments & isolated extreme conditions, asexual repro, bacteria has peptidoglycan cell wall while archaea does not 2 types of prokaryotes Correct Answer-bacteria and archaea fungi Correct Answer-eukaryotic (membrane bound nucleus), obtain food from ...

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15 pages

Written in 2023/2024

Grade A+

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What is the proper way to write bacteria? Correct Answer-Genus is capitalized, specific epithet is lowercase, everything is italicized Antoni van Leeuwenhoek Correct Answer-Using his handcrafted microscopes, he was the first to observe and describe microorganisms. Considered the Grandfather of Microbiology Louis Pasteur Correct Answer-demonstrated that microorganisms are present in the air, support biogenesis Robert Koch Correct Answer-provided the experimental steps, Koch's postulates...

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17 pages

Written in 2023/2024

Grade A+

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1. Biochemical tests are used to determine -Staining characteristic -Amino acid sequences -Nucleic acid-base composition -Enzymatic activities -All of these Correct Answer-Enzymatic activities 2. According to the operon model, for the synthesis of an inducible enzyme to occur, the -End-product must not be in excess. -Substrate must bind to the enzyme -Substrate must bind to the repressor -Repressor must bind to the operator -Repressor must not be synthesized Correct Answer-Substrate...

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17 pages

Written in 2023/2024

Grade A+

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Microorganisms Correct Answer-organisms that are too small to be seen with the unaided eye Microbes in our life Correct Answer--pathogenic (disease-causing) -organic (carbon-based) (proteins, carbs, DNA) What do microbes produce? Correct Answer--produce industrial chemicals such as ethanol and acetone -produce fermented foods such as vinegar, cheese and bread -produce products in manufacturing (cellulase) and treatment (insulin) What are the 3 classifications in the ecosystem? Correc...

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24 pages

Written in 2023/2024

Grade A+

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What sticky layer allows bacteria to attach to surfaces? a. peptidoglycan b. outer membrane c. slime layer d. pilli Correct Answer-c. slime layer Archael cell walls a. do not up take crystal violet b. contain peptidoglycan and specialized polysarcharides c. contains specialized polysarcharides but does not contain peptidoglycan d. cannot be gram stained Correct Answer-b. contain peptidoglycan and specialized polysarcharides Prokaryotic and eukaryotic ribosomes a. are the same siz...

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17 pages

Written in 2023/2024

Grade A+

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Microbiology Correct Answer-is a branch of biology that deals with scientific study of microorganism such as: bacteria, fungi, viruses, and parasites(protozoa,helminths, and some insects) prokaryotic cell Correct Answer-bacteria and cyanobacteria (blue-green algae) eukaryotic cell Correct Answer-(fungi, protozoa, green algae, animals, and plants) mycosis Correct Answer-any disease caused by fungi virus Correct Answer-need a host to live -they are non-living because they need a host,...

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29 pages

Written in 2023/2024

Grade A+

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MCB2010 Exam Questions and Answers 2024

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53 pages

Written in 2023/2024

Grade A+

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