Tem microscope lens - Study guides, Class notes & Summaries

BIO 235 Microbiology Exam TEST 1() units of measurement - CORRECT ANSWER1 µm = 10-6 m = 10-3 mm 1 nm = 10-9 m = 10-6 mm 1000 nm = 1 µm 0.001 µm = 1 nm total magnification (compound microscopes) - CORRECT ANSWER-the image from the objective lens is magnified again by the ocular lens -total magnification = objective lens x ocular lens resolution - CORRECT ANSWER-the ability of the lenses to distinguish two points. -shorter wavelengths of light provide greater resolution objective l...

Three Domains Correct Answer Archea, Bacteria, Eukarya Hierarchy Correct Answer Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species Zone of inhibition Correct Answer 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 Correct Answer 1. The suspected causative agent must be found in eve...

microbe - Answer a living organism that requires a microscope to be seen 2 types of microbial organisms - Answer prokaryotes [cell lacks nucleus] -archaea -bacteria eukaryotes [cell w/ nucleus] -algae/plants -fungi/animals -protists 3 domains of life - Answer Bacteria, Archaea, Eukarya normal microbiota - Answer microbes normally present in and on the human body aid digestion prevent diseases by competing with pathogen microorganisms in environment - Answer recycling of n...

What is cell theory? - ANSWER It states that the cell is the fundamental structure of all living matter, and that cells can only develop from other existing cells. Why was cell theory not fully developed before the mid-19th century? - ANSWER Before then, microscope magnification was not as powerful, and so scientists were unable to see and identify single cells or cell components. Describe the process of calibrating a microscope. - ANSWER 1. Place the stage micrometer on the stage and alig...

FINAL EXAM 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 ...

BIO 235 Microbiology Exam TEST 1() units of measurement - CORRECT ANSWER1 µm = 10-6 m = 10-3 mm 1 nm = 10-9 m = 10-6 mm 1000 nm = 1 µm 0.001 µm = 1 nm total magnification (compound microscopes) - CORRECT ANSWER-the image from the objective lens is magnified again by the ocular lens -total magnification = objective lens x ocular lens resolution - CORRECT ANSWER-the ability of the lenses to distinguish two points. -shorter wavelengths of light provide greater resolution objective l...

BIOD 171 PORTAGE LEARNING EXAM 3 2024/2025 COMPLETE QUESTIONS WITH VERIFIED ANSWERS | RATED A+ Define the measurements micrometer and nanometer. - Answer>>>A micrometer is onemillionth of a meter and a nanometer is one-billionth of a meter. What are the two critical factors that influence your ability to see an object? - Answer>>>The resolution and the contrast. Resolution is the distance between two objects where you can still see them as separate. Contrast is the diffe...

2024 AQA AS BIOLOGYPAPER 2 2022 / 2024 AQA AS BIOLOGY Paper 2 Question Paper & Mark scheme (Merger) Glycolipid - ANS-A carbohydrate covalently bonded with a lipid. They act as recognition sites, help maintain stability of the membrane and help cells attach to one another. Cholesterol - ANS-Lipid that is an important component of cellsurface membranes because it adds strength. Excess in the blood can lead to atheroma. Permeability - ANS-How permeable a substance is depends on the...

BIOS 242 Chamberlain Midterm Exam updated 2024 A+ Graded Questions and Answers 100% Pass. Three Domains - CORRECT ANSWER-Archea, Bacteria, Eukarya Hierarchy - CORRECT ANSWER-Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species Zone of inhibition - CORRECT ANSWER-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 antimicrobi...

What are the three parts of the cell theory? Every cell is made up of one or more cells. Cells are the basic unit of structure. All cells are from pre-existing cells. How was the cell theory discovered? The cells theory was discovered by Robert Hooke when he was looking at a peice of cork under a microscope where the chambers he saw reminded him of the cell/rooms where monks slept in their monasteries What is the difference between a theory and a hypothesis? How is a theory developed? A hypoth...