Bright field microscopy Samenvattingen, Aantekeningen en Examens

Brock Biology of Microorganisms, 15e (Madigan et al.) Chapter 1 The Microbial World 1.1 Multiple Choice Questions 1) Which of the following statements is FALSE? A) Microbial cells can exist as single cells. B) Microbial cells carry out their life processes of growth independently. C) Microbial cells include both bacteria and viruses. D) Microbial cells are surrounded by a plasma membrane. 2) Which of the following statements is correct? A) Microorganisms are significant contributors to ...

What are the three measurements used and what's the relationship between them? millimeters (mm) - 10^-3 M micrometers (Mm) - 10^-6 M nanometers (nm) - 10^-9 M 1000 nm = 1 Mm 1000 Mm = 1 mm Humans can see up to what measurement? ~100-200 Mm What are three contradictions to the definition of a microbe? Supersize microbial cells, Microbial communities, and viruses What are Robert Hooke - Built the first microscope - First to observe mold, fleas, and cork under a micro...

What is the total magnification of a sample imaged with a 60x objective and a 10x eyepiece? (short answer) CORRECT ANSWER 60 x 10 = 600x magnification True or False: A cell that is adherent, flat, and unstained is easily identified using bright field microscopy CORRECT ANSWER False. Adherent, flat cells are almost invisible due to the limits on both resolution and contrast Which of the following could be seen clearly by the unaided eye? (multiple choice) CORRECT ANSWER Protozoa with diamet...

What are properties of all cells? - Growth Metabolism Evolution LUCA - Last universal common ancestor How do we decide how the phylogenetic tree is drawn? - Use ribosomes. All organisms have it and it has been the same for billions of years What are the domains? - Bacteria Archaea Eukarya What defines the domains of cells? - Their rRNA sequencing What domains are most closely related? - Archaea and eukarya What emerged from Archaea? - Eukarya How do we know kw when oxygen appeare...

Portage Learning: Microbiology Module 3 Already Graded A Define the measurements micrometer and nanometer. A micrometer (μm) is defined as being one-millionth of a meter and is commonly designated at 10-6 meters. A nanometer (nm) equals 10-9 m or one-billionth of a meter. What are the two critical factors that influence your ability to see an object? Resolution and contrast. Resolution refers to the distance between two objects at which the objects still can be seen as separate. Poor or low r...

AAB MT Basic Knowledge Question and answers rated A+ 2023/2024 Function of centrifuge - correct answer Separates substances based on density Daily maintenance of centrifuge - correct answer clean with 10% bleach periodic maintenance of centrifuges - correct answer check speed using tachometer types of pipettes - correct answer Measuring, Serological, and Volumetric types of serological pipettes - correct answer blow out and drain out types of thermometers - correct answer liquid...

BIOS 242 - Final Review Questions And Answers Three Domains - ANS Archaea, Bacteria, Eukarya Hierarchy - ANS Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species Zone of inhibition - ANS The clear region around the paper disc saturated with an antimicrobial agent on the agar surface. The clear region is an indication of the absence, or the effective inhibition, of microbial growth by the antimicrobial agent. Koch's Postulates - ANS 1. The suspected causative a...

What are the 2 most common measurements used in microscopy - micrometer and nanometer describe simple microscopes and compound microscopes - simple microscopes contain a single lens; compound microscopes contain a group of diverse lenses What is refracted light - "light whose rays have been bent out of their original course by passing through a transparent membrane" list 3 basic lens shapes - flat, convex, and concave what is the "resolving power" of a microscope lens - ability to dis...

Bio 315 Exam 1 Questions and Answers 100% Pass Cytology - Correct Answer ️️ -focuses mainly on cellular structure and emphasizes optical techniques Biochemistry - Correct Answer ️️ -focuses on cellular structure and function Genetics - Correct Answer ️️ -focuses on information flow and heredity and includes sequencing of the entire genome (all of the DNA) in numerous organisms Robert Hooke - Correct Answer ️️ -Discovered cells 30x magnification -termed cells Cellula -drew...

Bio 315 Exam 1 Questions and Answers 100% Pass Cytology - Correct Answer ️️ -focuses mainly on cellular structure and emphasizes optical techniques Biochemistry - Correct Answer ️️ -focuses on cellular structure and function Genetics - Correct Answer ️️ -focuses on information flow and heredity and includes sequencing of the entire genome (all of the DNA) in numerous organisms Robert Hooke - Correct Answer ️️ -Discovered cells 30x magnification -termed cells Cellula -drew...