Scientists Believe Polysaccharides Played Little Role, If Any, in Chemical

question 31

Multiple Choice

Scientists believe polysaccharides played little role, if any, in chemical evolution. Which of the following is not true of polysaccharides, leading scientists to discount them as the first life- forms?

• A) They are incapable of catalyzing chemical reactions.
• B) Polysaccharides are polymers, meaning they contain many monomer subunits. Polymers have never been observed to form, in any type of molecule, under laboratory conditions.
• C) The formation of glycosidic linkages between monosaccharides has been observed only with complex enzymes that would have come after chemical evolution-during biological evolution.
• D) Because there is no complementary pairing between monosaccharides, they cannot provide the information for copying themselves.

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Definitions:

Assets

Resources owned or controlled by a company or individual with the expectation that they will provide future benefit.

Accounting Equation

A fundamental financial principle representing the relationship between a company's assets, liabilities, and shareholder's equity: Assets = Liabilities + Equity.

Increase Assets

An augmentation in the total value or amount of economic resources owned or controlled by an entity.

Increase Liabilities

An action that results in a rise in the obligations or debts of a company, affecting the company's financial position.