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
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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.
An adaptation in one environment may be useless or harmful in different circulstances.
a. true b. false
Noncyclic photophosphorylation produces
A) ATP only. B) oxygen. C) NADPH only. D) ATP and NADPH. E) water and ATP.
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.