Although Cellulose Is a Carbohydrate Made of Polymerized Glucose Molecules

question 151

Multiple Choice

Although cellulose is a carbohydrate made of polymerized glucose molecules, the usual enzymes such as amylase that break down carbohydrates in your mouth and small intestine do not have any effect on cellulose. For the most part, animals do not produce the enzyme cellulase, which catalyzes cellulose hydrolysis. How then do herbivorous organisms manage to live on plant material primarily made of cellulose?

• A)They may have specialized chambers in the foregut that harbor populations of symbiotic anaerobic bacteria that break down cellulose.
• B)They may have a cecum that houses symbiotic anaerobic bacteria that break down cellulose.
• C)They have a multichambered stomach that has very low pH and particularly active form of pepsin for digesting plant proteins.
• D)They may have food take longer to pass through the intestine so more nutrients can be absorbed.

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Definitions:

Bond

An interest-bearing note payable usually in $1,000 denominations issued by a corporation to a large group of lenders.

Annual Interest Rate

The percentage of interest that will be charged or earned on a principal amount over the course of a year.

Face Value

The nominal value or dollar value printed on a security or a financial instrument, such as a bond or a stock certificate.

Market Rate

The prevailing interest rate available in the marketplace for instruments of similar risk and maturity.