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MCB3020 Final Exam Study Guide with Complete Solutions
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MCB3020 Final Exam Study Guide with Complete SolutionsMCB3020 Final Exam Study Guide with Complete SolutionsMCB3020 Final Exam Study Guide with Complete SolutionsMCB3020 Final Exam Study Guide with Complete SolutionsMCB3020 Final Exam Study Guide with Complete Solutions virus - ANSWER - An infecti...

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  • August 1, 2024
  • 23
  • 2024/2025
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  • mcb3020 final exam study guide with complete solut
  • mcb3020 final exam study guide
  • virus answer an infectious agent made up of p

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MCB3020 Final Exam Study Guide with Complete Solutions
virus - ANSWER - An infectious agent made up of protein, nucleic acids and sometimes a lipid membrane
Viroid - ANSWER - An infectious agent consisting of only RNA
Prion - ANSWER - An infectious agent consisting of only protein
The proper sequence of reagents in the Gram stain procedure is - ANSWER - crystal violet, iodine, ethanol, safranin.
The Gram stains of of a bacterial cell is based on the chemical properties of its - ANSWER - cell wall
True or False: The Gram stain can only be performed on cultures grown in liquid media. - ANSWER - False
After performing a Gram stain of a mixed culture of Gram-positive and Gram-negative cells, you shout: "Oops, I forgot the iodine step!" What would you expect to see if you observed the slide under the microscope? - ANSWER - Pink Gram-positive and pink Gram-negative cells
Acetone can be used as the decolorizer in the Gram stain procedure. - ANSWER - true
Storage inclusion - ANSWER - stores nutrients, energy, metabolic products, building blocks
-carbon -glycogen -amino acids Chemotaxis - ANSWER - the process by which bacteria move toward an attractant or away from a repellent
What is the most common cell wall in most Archaea? - ANSWER - S layer
Antiseptic surgery was pioneered by - ANSWER - Lister
Which of the following is not true about archaeal ribosomes? - ANSWER - They have similar antibiotic sensitivities to those of bacteria.
Unlike members of the Bacteria, most archaeans have linear chromosomes. - ANSWER - false
The concept that living cells can arise from nonliving material - ANSWER - spontaneous generation
Golgi apparatus - ANSWER - Involved in the modification, packaging, and secretion of materials
Rough ER - ANSWER - ER that is dotted with ribosomes and where protein synthesis occur
The nucleolus plays a major role in synthesis of - ANSWER - rRNA
The first of Koch's postulates is - ANSWER - the microorganism must be present in every case of the disease but absent from healthy organisms.
Which of the following cells will be expected to contain the most active lysosomes? - ANSWER - Phagocytosing white blood cell
The enzymes found in the lysosomes were formed in the endoplasmic reticulum. - ANSWER - true
The abnormal form of the protein is designated _________. - ANSWER - PrPSc, normal is PrPc Which of the following bacterial structures are most directly linked to swimming motility in chemotaxis? - ANSWER - flagella
True or False: Gram-positive bacteria have a thinner layer of peptidoglycan than gram-negative bacteria -
ANSWER - False
Cytosol - ANSWER - liquid component of the cytoplasm
What is useful in distinguishing between prokaryotic and eukaryotic cells? - ANSWER - The presence of membrane-delimited organelles within the cytoplasm
ER - ANSWER - Location for protein synthesis and some protein modifications
which of the following advances best describes that today we maybe experiencing a second golden age of microbiology? - ANSWER - genomic testing
Perisomes - ANSWER - Location for storage of protective compounds that break down lipids and detoxify certain chemicals
function of mitochondria - ANSWER - tricarboxylic acid cycle enzyme reaction, electron transport, ATP synthesis
Lacks linear chromosome and has a peptidoglycan cell wall - ANSWER - Bacteria
Which of the following describes an organism that rarely contains plasmid? - ANSWER - Eukarya
Which acellullar agent/s are composed of nucleic acids only? Check all that apply. - ANSWER - satellite, prion, virus
Which of the following describes an organism that contains 80S ribosomes? - ANSWER - eukarya

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