Final answer:
The two main types of eukaryotic molecular chaperones are Hsp70 and Hsp90. They assist in protein folding and stabilization under various cellular conditions, ensuring proteins achieve their functional conformations.
Step-by-step explanation:
The two types of molecular eukaryotic chaperones are Hsp70 and Hsp90. These chaperone proteins play crucial roles in the correct folding and stabilization of proteins within the cell, especially under stress conditions such as increased temperatures or changes in pH. The Hsp70 family, for instance, aids in the unfolding and translocation of newly synthesized proteins across membranes and assists their refolding once they reach their destination, like in the case of mitochondrial proteins entering the matrix. The Hsp90 family, on the other hand, is more involved in stabilizing and activating key regulatory proteins.