Which of the Following Statements About the Colon Is NOT

question 48

Multiple Choice

Which of the following statements about the colon is NOT true?

• A)The colon is active in water absorption,removing about 95% of the water that enters it and returning it to the bloodstream.
• B)Insufficient absorption of water can result in diarrhea that may be life-threatening.
• C)Feces consists of about 25% water and 75% solids that are mainly bacteria from the intestinal tract.
• D)The last section of the colon is the rectum,which terminates in the anus.
• E)Cells in the walls of the large intestine absorb vitamin K that is produced by bacteria resident in the colon.

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Understand the key reasons behind the decline in mortality rates of infectious diseases over the past century.

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Definitions:

Budding

Asexual reproduction in which a small part of the parent’s body separates from the rest and develops into a new individual; characteristic of yeasts and certain other organisms.

Basidia

Specialized spore-producing cells found in the reproductive structures of Basidiomycete fungi.

Asci

Asci are sac-like structures found in ascomycete fungi where the spores, called ascospores, are produced during sexual reproduction.

Mycorrhizae

Mutualistic associations of fungi and plant roots that aid in the plant’s absorption of essential minerals from the soil. Hyphae of ectomycorrhizal fungi coat plant roots; those of endomycorrhizal fungi penetrate plant cell walls (see arbuscules).