Hematoxylin - Study guides, Class notes & Summaries

Self-Assessment Test #2 – BOC Questions and Answers Already Passed What is the main function of mast cells in the immune response? A) Producing antibodies B) Attacking parasites C) Releasing histamine during allergic reactions D) Digesting cellular debris In histopathology, what stain is commonly used to identify connective tissue? A) Hematoxylin B) Gram stain C) Masson's Trichrome D) Wright stain Which condition is commonly diagnosed with a high sedimentation rate? A) ...

Which of the following actions should be taken when the hematoxylin and eosin stain lacks three distinct shades of pink? a. check pH of fixative b. replace hematoxylin c. check pH of eosin d. increase time in water - ACCURATE ANSWERS c. check pH of eosin A dark brown pigment is noted on formalin fixed, hematoxylin and eosin stained section. What action can prevent this from occurring? a. maintain formalin at a neutral pH b. treat sections with alcoholic picric acid c. "bread loaf" l...

MCAT STUDY GUIDE EXAM QUESTIONS WITH CORRECT ANSWERS. resolution - CORRECT ANSWER differentiate close objects magnification - CORRECT ANSWER increase size eyepiece magnification - CORRECT ANSWER 10x objective magnification - CORRECT ANSWER 4x,10x,20x, 100x Cell Theory - CORRECT ANSWER -all living things composed of cells -cell=basic functional unit of life -cells from other cells only -cells have DNA (parent-->daughter cells) total magnification - CORRECT ANSWER eyepiec...

Histotechnology--Nuclear & Cytoplasmic Staining Question and answers already passed 2023/2024 c. nuclei *hemalum stains (hematoxylin mordanted with either ammonium aluminum sulfate or potassium aluminum sulfate) are used almost exclusively to stain nuclei Harris hematoxylin is used on tissue sections to stain: a. fat b. glycogen c. nuclei d. cytoplasm b. oxidation *can be done naturally (atmospheric oxygen), or with oxidizing agents Ripening of hematoxylin is a process of: ...

CSMLS chemistry exam questions and answers Chilled Samples - CORRECT ANS-ACTH, lactic acid, ammonia, blood gases, acetone, gastrin, glucagon, pyruvate, renin Protect samples from light - CORRECT ANS-bili, carotene, erythrocyte protoporphyrin, vitamin A, vitamin B12 Warm Samples - CORRECT ANS-Cold agglutinins, cryoglobulins Fasting samples - CORRECT ANS-Fasting blood sugar, triglycerides, lipid panel, gastrin, insulin Formalin pigment - CORRECT ANS-Aka acid formalin hematin. Brown, g...

Histotechnology 3 quiz 2H&e - correct answers all specimens received will have at least one slide cut and stained with this type of stain Celestine blue - correct answers this is the only suitable substitute for hematoxylin. must be mordanted with iron. progressive. dark blue - correct answers what color does the nuclear membrane stain with H&e nuclear pores - correct answers these are formed periodically between two layers of nuclear membrane and can only be seen with an electron micro...

CSMLS practice questions with complete solution Which of the following actions should be taken when the hematoxylin and eosin stain lacks three distinct shades of pink? a. check pH of fixative b. replace hematoxylin c. check pH of eosin d. increase time in water - CORRECT ANS-c. check pH of eosin A dark brown pigment is noted on formalin fixed, hematoxylin and eosin stained section. What action can prevent this from occurring? a. maintain formalin at a neutral pH b. treat sections with...

Hematoxlyin and Eosin - 1. Hematoxylin = basic dye stains acidic molecules like nucleus, DNA, RNA 2. Eosin = acidic dye stains basic molecules like cytoplasm Plasma membrane - lipid bilayer in which proteins are embedded -has 2 layers 1. hydrophilic = head 2. hydrophobic = tail 2 types of proteins in plasma membrane: 1. Integral membrane proteins = inside the plasma membrane 2. Peripheral membrane proteins = outside of the membrane

What does hematoxylin and eosin stain? Correct Answer-Hematoxylin (purple) stains basophilic structures. Examples: DNA, RNA, Ribosomes Eosin (pink) stains eosinophilic/acidiphilic structures. Examples: cytoplasm and collagen. Which stain detects carbohydrates? What color does it turn carbs? Correct Answer-Periodic Acid-Schiff Reactions stain carbohydrates magenta Alcohols and turn them into doubled bonded oxygens (aldehydes). Schiff reagent reacts w/aldehyde to form the magenta color. ...

Histotechnology: H&E Staining the study of the microscopic structure of tissues what is histology? 1. to determine the cause of disease 2. determine the mechanism by which disease develops 3. to see the structural alterations of cells 4. to determine the consequences of the cell's alteration what are 4 ways a pathologist can use histology? so we can see all the components of the cell and the relation of cells to one another why do we stain tissues on slides? to differentia...