Yeast, a cellular model. Yeast is a simple living being that functions in practically the same way as human cells. It is an historical subject of fundamental research to understand cellular and genetic phenomena. It is a representative model of all eukaryotic cells.
Covenant. An agreement, contract, or written promise between two individuals that frequently constitutes a pledge to do or refrain from doing something. The individual making the promise or agreement is known as the covenantor, and the individual to whom such promise is made is called the covenantee.
A debt service calculation (and loan covenant) is meant to measure how much cash is available from a business operation (cash flow) to meet its obligation to pay the lenderâs loan (principle and interest) payments. In really simple words, it measures the borrowerâs ability to pay the lender back.