167k views
5 votes
What is the correct temperature for short-term storage frozen tissue?

a. -30 degree celsius or colder
b. -4 degree celsius or colder
c. -20 degree celsius or colder
d. -40 degree celsius or colder

User Milbrandt
by
7.6k points

1 Answer

6 votes

Final answer:

Option C. The correct temperature for short-term storage of frozen tissue is -20 degrees Celsius or colder to maintain sample integrity and suppress microbial activity.

Step-by-step explanation:

The correct temperature for short-term storage of frozen tissue is -20 degrees Celsius or colder. While refrigeration temperatures between 0 °C and 7 °C can inhibit microbial metabolism and slow growth, the preservation of tissue samples requires colder settings to ensure cellular structures remain intact and microbial activity is suppressed. For ultra-low, long-term storage, temperatures around -196 °C in liquid nitrogen tanks or -70 °C in ultra-low freezers are used. However, for short-term usage, maintaining a temperature of -20 °C is generally sufficient for sample integrity during storage and before further analysis or use.

The correct temperature for short-term storage of frozen tissue is -20 degree Celsius or colder. Storing tissue at this temperature helps to maintain its post-preparative stability and prevents any damage from freeze-thaw cycles. Bacterial cultures and medical specimens requiring long-term storage are often frozen at even lower temperatures to ensure their stability.

User Davidsbro
by
7.4k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories