Iris diaphragm Study guides, Class notes & Summaries

Portage Learning BIOD 171 Microbiology Lecture Exam Key 1-6 Exams 1. What are the two major types of nucleic acids and their roles? DNA- deoxyribonucleic acid RNA- Ribonucleic acid DNA- Cellular life has DNA and a role that DNA has is long-term storage of information, it holds the characteristics of living organisms. RNA- Is the carrier of information in form of amino acid sequence. It converts the information in the DNA and synthesizes proteins Tru...

Course Objectives: Cultivation of samples: growth conditions and equipment used Identification of samples: biochemical assays & tests available Evaluation of samples: microscopy- visualization and key characteristics of specimens Basic Equipment: Cleaning: Autoclave 125°C- uses heat, pressure, & steam to sterilize; autoclave will take minutes to sterilize & hot dry air which will take hours; before opening make sure it is depressurized and will have very hot air. Growing (bacteria/patho...

BIOD 171 Portage Learning Final EXAM Questions and Answers 100%Correct/Exam 1-7 2023/2024 UpdatePortage Learning BIOD 171 Final EXAM Questions and Answers 100%Correct/Exam 1-7 2023/2024 Update 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. 1. What is the smallest biological unit of life? A cell. ...

Microbiology Lab Midterm Questions and Answers Already Passed Compound microscope 1. Ocular-eyepiece lens (usually 10x) 2. Objective-nosepiece lenses (commonly 4x, 10x, 45x, and 100x) At what magnification do you use the oil immersion technique? 100x. Total Magnification = Magnification (Objective) x Magnification (Ocular) Important Parts of the Microscope Framework, Stage, and Lens System Framework Arm and base are the structural parts of the microscope which support the basic frame. Stage...

Biol 227 Lab Exam Latest Update with Verified Solutions Acoelomate (Platyhelminthes) planaria. has eyespots , auricles, incomplete digestion, pharynx, dorsoventrally flattened acoelomate filled with parenchyma derived from mesoderm albumen egg white, just under shell, supples water, nutrients, o2 allantois collects waste allantois in mammals tube that fuses with chorion to form chorioallantoic placenta Allomyces Chytridiomycota Alveolata A protistan clade that includes d...

Who is the father of microscopy? Antonie van Leeuwenhoek Lamp: produces visible light to illuminate the specimen Condenser: collects light and directs it through the stage opening (converges or focuses the rays of light to a single point) Iris diaphragm: regulates the amount of light available to the objective lens Factors that affect microscope function: Resolving power, numerical aperture, magnification, working distance Resolving power: ability of a microscope to differentiate two ...

NSG 6020 Midterm Exam (Version 1), NSG 6020 Health Assessment, South University, Savannah, (Verified and Correct Documents, Already highly rated by students) NSG 6020 Midterm Quiz / NSG 6020 Midterm Exam (Latest): South University NSG 6020 Midterm Quiz (Latest) Question 1 (2 points) In performing an examination of a 3-year-old with a suspected ear infection, the nurse practitioner would: Question 1 options: omit the otoscopic exam if the child has a fever. pull the ear up and back before in...

CSMLS Questions With Verified Correct Answers New Update 2024 A+ Graded Which of the following actions should be taken first when a new co-worker consistently fails to replenish analyzer reagents at the end of their shift? - ANS-Discuss the concern with the co-worker directly What is the term for the moral obligation a health care professional has to keep patient health information private? - ANS-Not privacy lmao Pale cytoplasmic staining w/ H&E or lacks three distinct shades of pink - AN...

BIOD 171 FINAL EXA M 2022 Portage Learning 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 ma...

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...