1. What does Cryopreservation mean?

Keep something in its original state

Keep something in extreme low temperature

Keep something in low temperature to slow down its development

Keep something in low temperature to maintain its original state

2. What is the typical temperature for Cryopreservation?

-196?C

0?C

-80?C

-90?C

3. Which one of the following is the scientist who came up with Gaia Theory?

George M. Fahy

James E. Lovelock

Andrew A. Zalewshi

Derek Tan

4. What is this most difficult and basic problem in Cryopreservation?

In extreme low temperature, enzymes in the cell will denature and the cell will die

The water content of the cell will expand in temperature below 4?C causing the cell membrane to burst

The water content of the cell will freeze to form ice crystals that will disrupt the cell membrane

In extreme low temperature, the DNA within the nuclear of the cell will denature

5. When is the most difficult and basic problem in Cryopreservation solved?

Early 19th Century

Early 1900's

Mid 19th Century

Mid 1900's

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