Final answer:
Chaperonins/HSP-60 proteins are not found in the nucleus, but are found in the cytoplasm, mitochondria, and chloroplasts. HSP-70 and HSP-90 proteins are found in the cytoplasm, mitochondria, and the ER.
Step-by-step explanation:
Chaperonins/HSP-60 proteins are found in various cellular compartments and organelles, including the cytoplasm, mitochondria, and chloroplasts in plants. However, they are not found in the nucleus, as the nucleus has its own set of chaperone proteins for protein folding and transport.
As for HSP-70 and HSP-90 proteins, they are found in various cellular compartments, including the cytoplasm, mitochondria, and the endoplasmic reticulum (ER). They play important roles in protein folding, transport, and quality control throughout the cell.