BOC Study Guide Histotechnology 2nd Ed. - Fixation (HT) Questions and Answers Graded A+

BOC Study Guide Histotechnology 2nd
Ed. - Fixation (HT) Questions and
Answers Graded A+
What is the primary purpose of fixation in histotechnology?

A) To enhance staining


✔✔B) To preserve tissue morphology


C) To increase tissue size

D) To accelerate decomposition




Which of the following is a common fixative used in histology?


✔✔A) Formaldehyde


B) Ethanol

C) Acetone

D) Isopropanol




What is the optimal concentration of formaldehyde for fixation?

A) 1%

B) 5%


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,✔✔C) 10%


D) 20%




What type of fixation preserves lipids better?

A) Formalin fixation


✔✔B) Osmium tetroxide fixation


C) Alcohol fixation

D) Picric acid fixation




What is a disadvantage of using glutaraldehyde as a fixative?


✔✔A) It can cause excessive cross-linking


B) It is less effective than formaldehyde

C) It does not penetrate tissues well

D) It is non-toxic




How long should tissues typically remain in formalin for proper fixation?

A) 30 minutes


✔✔B) 6-24 hours


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, C) 48 hours

D) 1 hour




What happens to tissue if fixation is inadequate?


✔✔A) It may result in poor staining quality


B) It will be perfectly preserved

C) It will shrink significantly

D) It will be over-fixed




Which of the following is NOT a primary objective of fixation?

A) Preventing autolysis


✔✔B) Enhancing tissue elasticity


C) Stabilizing proteins

D) Preserving cellular architecture




What is the role of co-fixatives in histotechnology?

A) To decrease fixation time


✔✔B) To improve fixation quality


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