What is the extracellular, metabolically inert, and infective form of Chlamydia?

A. Reticulate body
B. Elementary body
C. Replicate body
D. Initial body


Ans: B. Elementary body

Biology & Microbiology

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A hydrogen bond is a(n)

a. sharing of a pair of electrons between a hydrogen and an oxygen nucleus. b. sharing of a pair of electrons between a hydrogen nucleus and either an oxygen or a nitrogen nucleus. c. attractive force between a hydrogen atom and either an oxygen or a nitrogen atom that are in other molecules or within the same molecule. d. covalent bond between two hydrogen atoms. e. covalent bond between a hydrogen atom and either an oxygen atom or a nitrogen atom.

Biology & Microbiology

An adaptation in one environment may be useless or harmful in different circulstances.

a. true b. false

Biology & Microbiology

Noncyclic photophosphorylation produces

A) ATP only. B) oxygen. C) NADPH only. D) ATP and NADPH. E) water and ATP.

Biology & Microbiology

During cellular respiration:

A) both glucose and oxygen get reduced. B) glucose is oxidized and oxygen is reduced. C) oxygen oxidizes glucose directly. D) glucose is reduced and oxygen is oxidized.

Biology & Microbiology