Dyes and stains Study guides, Class notes & Summaries

Carpet Cleaning Technician 2024 Exam Questions With 100% Answers filament - Answer - a single strand of a natural or synthetic fiber natural fibers - Answer - More expensive, require more drying time Ex: Wool Cotton Silk Synthetic Fibers - Answer - By-product and man made Ex:Nylon Polyester Olefin Acrylic Two types of Natural Fibers - Answer - cellulosic=plant and protein=animals Wool - Answer - Natural crimp so springs back, stains easily, high alkalinity can damage it, ver...

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...

Microbiology Lab Review Questions with Certified Answers Explain why the body tube of the microscope should not be lowered while you are looking through the ocular lens. to ensure that the slide or lens is not broken For what purpose would you adjust the Iris diaphragm? adjust the amount of light coming through the specimen For what purpose would you adjust the course-adjustment knob? to bring the specimen into view For what purpose would you adjust the fine adjustment knob? to bring the spe...

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...

BIOL 2325L: FUNDAMENTALS OF MICROBIOLOGY LABORATORY| LAB REPORT 4|LATEST UPDATED 2024 /SCORED A+ Bacterial Structure, Simple Stains, Negative Stains, Gram and Acid-Fast Stains Introduction: Visualizing bacteria is difficult because of their small size and also because their refractive index is close to their aqueoussurroundings, making them nearly transparent. To effectively visualize bacteria,they must be stained to enhance the contrast between the cells and their surroundings (Leboffe a...

Microbiology Lab Test, Micro lab 1 Questions with Correct Answers Graded A+ Why are thick or dense smears less likely to provide a good smear preparation for microscopic evaluation? It will diminish the amount o flight that can pass through making it difficult to see under the microscope. Why is it essential that smears be air-dried? Why can't they be gently heated over the flame to speed up the drying process? 1. Overheat will denature and rupture the cell wall. 2. excess water on...

Microbiology Lab Test, Micro lab 1 Exam Questions and Answers Why are thick or dense smears less likely to provide a good smear preparation for microscopic evaluation? -Answer-It will diminish the amount o flight that can pass through making it difficult to see under the microscope. Why is it essential that smears be air-dried? Why can't they be gently heated over the flame to speed up the drying process? -Answer-1. Overheat will denature and rupture the cell wall. 2. excess water on the...

MLPAO Test Prep ~ Hematology Questions and Answers Graded A+ What does CBC stand for? Complete Blood Count What are the formed elements of blood? WBC, RBC, and Platelets Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:11 / 0:15 Full screen EDTA Anticoagulant Maintains cell shape and size and prevents blood from clotting by binding to calcium Heparin Anticoagulant Initiates cell clumping and provides blue backgroun...

1. Fabrics frequently are made from a blend or combination of --- Fibers 2. Natural fibers (rayon, cotton, linen) absorb water and other substances more easily than synthetic fibers, so they --- more slowly and --- more easily. 1) Dry 2) Stain 3. The cotton plant produces fibers from the --- --- of the plant. Seed Pod 4. Lignin is the binder in cellulose materials that dissolves in water to cause stains Called ---- ----. Cellulosic Browning 5. The flax plant produ...

Histopathologyhistopathology - correct answers the microscopic examination of tissue in order to study the manifestations of disease fixation - correct answers chemical or physical method of killing the tissue and yet retaining the characteristic peculiarities of shape and structure formalin - correct answers a chemical commonly used as a fixative How to cut tissue into thin sections? - correct answers freeze the fresh fixed tissue, dehydrate tissue in alcohols (embedding) embedding ...