Which of the following is a small Gram-negative rod requiring X-factor for growth?

A. Escherichia coli.
B. Treponema pallidum.
C. Neisseria gonorrheae.
D. Haemophilus ducreyi


D

Biology & Microbiology

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Aldosterone is most similar in its effect to what

other hormone?

a. calcitonin b. insulin c. cortisol d. anti-diuretic hormone e. growth hormone

Biology & Microbiology

What is the role of oxygen gas in aerobic respiration?

a. To provide electrons for NADH b. To accept energy from glucose c. To accept electrons from electron transport d. To provide kinetic energy for ATP synthase e. To donate electrons for electron transport

Biology & Microbiology

The cell cycle of a typical somatic cell consists of the ____ and M phases

a. interphase b. meiosis I c. crossing-over d. meiosis II e. mitosis

Biology & Microbiology

Biologic agents are:

A) synthetically manufactured and weaponized by mixing the synthetic component with an organism. B) least preferred by terrorists because they are difficult to disseminate over a large population. C) the ideal weapons of mass destruction if the terrorist's objective is to affect a small geographic area. D) naturally occurring organisms that are cultivated in a laboratory.

Biology & Microbiology