In tissue processing, benzene is listed as which type of agent?

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Multiple Choice

In tissue processing, benzene is listed as which type of agent?

Explanation:
In tissue processing, a clearing agent is used after dehydration to remove alcohol and prepare the tissue for paraffin infiltration. Benzene fits this role because it is miscible with both alcohol and paraffin, allowing the tissue to become clear and compatible with embedding in paraffin. It would not be a dehydrant, since dehydrants (like alcohols) are used earlier to remove water from tissue. It wouldn’t be the infiltration/embedding step, which is the process of introducing paraffin into the cleared tissue. It isn’t a fixative, which is used to preserve tissue structure before processing. Note that benzene is hazardous and many labs now use alternatives such as xylene or toluene in place of benzene.

In tissue processing, a clearing agent is used after dehydration to remove alcohol and prepare the tissue for paraffin infiltration. Benzene fits this role because it is miscible with both alcohol and paraffin, allowing the tissue to become clear and compatible with embedding in paraffin. It would not be a dehydrant, since dehydrants (like alcohols) are used earlier to remove water from tissue. It wouldn’t be the infiltration/embedding step, which is the process of introducing paraffin into the cleared tissue. It isn’t a fixative, which is used to preserve tissue structure before processing. Note that benzene is hazardous and many labs now use alternatives such as xylene or toluene in place of benzene.

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