Dyes and stains Study guides, Class notes & Summaries

Fungi - cell wall made of chitin; Eukaryote Algae - cell wall made of silicates, eukaryotic Protozoa - Eukaryote Bacteria - Prokaryotic Virus - Acellular; only reproduce if they are inside of a living cell What allows a substance to cross a membrane - Protiens Substances that will never pass through a membrane - Charged substances Passive movement processes - No ATP needed 1. Diffusion 2. Facilitaed Diffusion 3. Osmosis Active Transport processes - Uniport Aniport Sy...

microbe living single-celled organism that requires a microscope and has the capacity to reproduce some microbes can be seen without a microscope naming system used:________; 1st word: _________________; always ____________; 2nd word: _______________; full name is always: ____________ binomial; genus --> capitalized; specific epithet; italicized or underlined Who built the compound microscope and coined the term "cell"? Robert Hooke Who first observe...

UFT IICRC Exam Questions and Answers With 100% Correct Solutions Latest 2024/2025 | Graded A+. 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 stai...

What term describes the morphology of organisms that vary in shape and size? Pleomorphic i.e. coccobacilli Bacteriology arrangements: -pairs (diplococci "N. Gon"; diplobacilli -chains (streptococci, streptobacilli) -grape like clusters (staphylococci) -group of four-tetrads (peptococcus) -packets of eight-cuboidal (sarcina) -palisades (corneybacterium) Capsules are the basis of which test? serotyping and identification (capsules are antigenic); they are observed usi...

Heterochromatin correct answers form of DNA - tightly coiled, usually peripherally placed in the nucleus, dark-staining, inactive - not involved in RNA synthesis Euchromatin correct answers form of DNA - partially/fully uncoiled, centrally placed, light staining, active - involved in RNA synthesis Basophilic correct answers stains readily with basic dyes (e.g haemotoxylin is a basic dye that stains the nucleus - which is basophilic - blue/purple) Nuclear envelope correct answers double-...

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...

Molecular Cell Biology Final EXAM QUESTIONS AND CORRECT ANSWERS(VERIFIED ANSWERS)|AGRADE Separation of most blood cells is difficult, if not impossible, to achieve because they have similar properties and/or densities. What procedure is used to separate T-cells of the immune system from the many other different types of white blood cells or spleen cells? What feature of the T-cell facilitates the isolation protocol? Describe how this procedure is performed. - ANSWER- Flow cytometr...

Molecular Cell Biology Final EXAM QUESTIONS AND CORRECT ANSWERS(VERIFIED ANSWERS)|AGRADE Separation of most blood cells is difficult, if not impossible, to achieve because they have similar properties and/or densities. What procedure is used to separate T-cells of the immune system from the many other different types of white blood cells or spleen cells? What feature of the T-cell facilitates the isolation protocol? Describe how this procedure is performed. - ANSWER- Flow cytometry is used to...

Clinical Chemistry Exam 1 & (Book Chapters 1,2,3,4 Review Questions) Rated A+ Reverse osmosis (RO) is describes as a process: In which water is forced through a semipermeable membrane that acts as molecular filter. Activated carbon filters remove: Organic Compounds from water A 0.22 micron filter will remove: Particles with a diameter of 2.2 microns The unit of resistivity is: MQcm The electrical resistance measured between opposite faces of a 1.00 cm cube of an aqueous solution at a specifi...

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...