One of the direct products of deamination is urea. Indicate whether the statement is true or false


False - ammonia

Biology & Microbiology

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Approximately 99% of the microbes in the intestines are obligate anaerobes. We have plenty of blood vessels that can bring oxygen to the tissues of the intestines

Why would there be obligate anaerobes within these areas? A. The bacteria in the intestines are protected from exposure to the oxygen in the tissues by the lining of the intestines. B. The bacteria consume all the oxygen in the tissue areas brought by the blood vessels, creating an anaerobic environment. C. The inside space of the intestines, where bacteria reside, is highly anaerobic. It is deep inside the body where oxygen cannot reach AND, unlike the surrounding tissues, it is not supplied with blood. D. The aerobic microbes are outcompeted for nutrients in these areas by the anaerobic microbes.

Biology & Microbiology

Antibodies enhance ____ of bacteria and viruses because cells, such as macrophages, have receptors on their surfaces

that recognize the ____ end of antibodies.

a. phagocytosis; heavy-chain b. phagocytosis; antigen-binding c. neutralization; heavy-chain d. neutralization; light-chain e. phagocytosis; light-chain

Biology & Microbiology

When do eggs first develop in a woman?

A) prior to birth B) at puberty C) throughout her lifetime D) every 60 days

Biology & Microbiology

Phospholipids are made up of

A. five-carbon rings with two nonpolar tails. B. four fused carbon rings. C. a phosphate, two fatty acids and a glycerol. D. a glycerol and three fatty acids.

Biology & Microbiology