Microscopes Study guides, Class notes & Summaries

Microscopy - Microscopes

Test Bank for Prescott's Microbiology 11th Edition by Joanne Willey, Kathleen Sandman & Dorothy Wood 9781260211887 Chapter 1-43 | Complete Guide A+. Prescott's Microbiology, 11e (Willey) Chapter 1 The Evolution of Microorganisms and Microbiology 1) Extant microorganisms are organisms from the fossil record that are no longer present on Earth today. Answer: FALSE Topic: Taxonomy of Microorganisms Bloom's/Accessibility: 2. Understand / Keyboard Navigation ASM Topic: Module 01 Evolution ASM Obje...

Bright Field Microscope CORRECT ANSWER Most widely used Dark object, bright background Examine stained and unstained specimens Made by putting light through specimen Dark field microscope CORRECT ANSWER Image is lighter than illuminated background Uses a condenser on the light microscope Phase contrast microscope CORRECT ANSWER Used with live specimen Produces image with specimen against gray background Can see internal cells Scanning electron microscope CORRECT ANSWER Detailed 3D...

BIOD171 ESSENTIALS IN MICROBIOLOGY LAB MODULE 2 MICROSCOPES FINAL EXAM REVIEWBIOD171 ESSENTIALS IN MICROBIOLOGY LAB MODULE 2 MICROSCOPES FINAL EXAM REVIEWBIOD171 ESSENTIALS IN MICROBIOLOGY LAB MODULE 2 MICROSCOPES FINAL EXAM REVIEW

VBIOD171 ESSENTIALS IN MICROBIOLOGY LAB MODULE 2 MICROSCOPES FINAL EXAM REVIEWBIOD171 ESSENTIALS IN MICROBIOLOGY LAB MODULE 2 MICROSCOPES FINAL EXAM REVIEWBIOD171 ESSENTIALS IN MICROBIOLOGY LAB MODULE 2 MICROSCOPES FINAL EXAM REVIEW

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...

Microbiology LAB Exam 1 with Complete Solutions Microscope- The Condenser focuses the light ging into the objective lens Microscope- The Iris Diaphragm adjusts the amount of light going into the objective lens Microscope- Nosepiece holds the objective lenses and rotates to change from one objective to another Microscope- Coarse Objective Knob moves the stage larger distances to help get the object in focus Microscope- Fine Adjustment Knob moves the stage smaler increments to help get the obj...

Carolus Linnaeus Correct Answer-system for naming plants and animals and grouping similar organisms together Carl Woese Correct Answer-o 3 Domains: Eukaryotes, Bacteria, Archaea o started sequencing rRNA, saw that 16S RNA has to be highly conserved, found that there are 3 domains of life o the phylogenetic tree is based on Woese's rRNA analysis Antoni van Leeuwenhoek Correct Answer-o made and looked through microscopes o Father of Microscopy Aristotle Correct Answer-spontaneous gene...

Last Universal Common Ancestor (LUCA) CORRECT ANSWER Was a microbe of unknown type that lived about 4 billion years ago; the origin of all organisms. What is 16s small unit rRNA used for? CORRECT ANSWER It's used to study construct phylogenetic trees of organisms because it's highly conserved and hasn't changed much over time. Antonie von Leeuwenhoek CORRECT ANSWER Father of microscopy in 1620 Increased surface area like folded membranes CORRECT ANSWER How do larger cells maximize di...

Homeostasis When organisms maintain a stable internal environment even when external conditions change Metabolism Combination of chemical reactions taking place within an organism Stimulus A signal to which an organism responds Biosphere Means "living planet" Robert Hooke Scientist who looked at cork through a microscope and gave the name to cells Light Microscope A type of microscope Can magnify 1000x Not as strong as other microscopes Uses light Scanning Electron Microscope A typ...