My diet is rich in protein.

The quality of this product is very high.

I drink egg whites every morning.

In this experiment, we will observe the movement of cells using green fluorescent protein.

Protein-degrading enzymes play a role in breaking down unnecessary proteins in the body.

The content of this book is very high quality.

He pawned his watch to get money.

His constitution makes him prone to catching colds.

He has a susceptibility to depression, and tends to get down over little things.

He has cyclothymia, and his mood changes drastically.