Consider the Evolution of Metabolic Pathways

question 44

Multiple Choice

Consider the evolution of metabolic pathways. We believe that these pathways evolved from the

• A)precursor to the end product, as enzymes became more efficient over time.
• B)precursor to the end product, as cells simplified the biochemistry of the external environment.
• C)end product to the precursor, as cells gradually evolved according to a predetermined plan.
• D)end product to the precursor, as intermediates in the pathway were depleted in the environment.
• E)end product to the precursor, as photosynthesis began to supply the energy to power the changes at each stage.

---

Definitions:

Excess Cash

Cash that exceeds the normal operating needs of a business and is available for investing or returning to shareholders.

Stock Repurchase

A corporate action in which a company buys back its own shares from the marketplace, reducing the amount of outstanding stock.

Stock Split

A corporate action in which a company divides its existing shares into multiple shares to boost the liquidity of the shares.

Par Value

The nominal or face value of a bond, share of stock, or coupon as stated by the issuing entity, which may not reflect market value.