Questions and 100% Verified Correct Answers
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A __________ stain is one where the dye adheres to the cell whereas a __________
stain is one that colors the background surrounding the cell, leaving the cell unstained. -
CORRECT ANSWER: positive; negative
A diatomic element - CORRECT ANSWER: consists of two atoms of the same element
held together by a chemical bond.
A Petri dish containing isolated colonies of Staphylococcus aureus, Escherichia coli,
and Pseudomonas aeruginosa would be described as being - CORRECT ANSWER: a
mixed culture
A polar molecule is created when - CORRECT ANSWER: shared valence electrons are
pulled more toward one atom than another in a molecule.
A reduction reaction is so named because when an atom is reduced it loses electrons. -
CORRECT ANSWER: false
A scientist observes that all people who contract a painful skin rash known as shingles
have previously in their lifetime been infected with chicken pox. He theorizes that the
virus that causes chicken pox is the same virus that causes shingles. What type of
reasoning is being displayed in this case? - CORRECT ANSWER: inductive reasoning
a single atom of a substance.. - CORRECT ANSWER: may not be subdivided into
smaller parts without losing its properties.
acid-fast stain - CORRECT ANSWER: Mycobacterium tuberculosis
, Agricultural Microbiology - CORRECT ANSWER: The field which studies the
relationships between microbes and domestic plants and animals
All bacteria can be cultured in the laboratory - CORRECT ANSWER: false
An ester bond is found between - CORRECT ANSWER: guanine and cytosine
nucleotides of DNA.
An isolated colony is formed when - CORRECT ANSWER: a single cell divides many
times to a mound of identical cells.
atomic - CORRECT ANSWER: hydrogen atom, glucose molecule
Bacteriology - CORRECT ANSWER: the study of bacteria; small, single-celled
prokaryotic organisms
binomial nomenclature - CORRECT ANSWER: scientific name consisting of genus and
species
Bioremediation - CORRECT ANSWER: process that involves the introduction of
microbes into the environment to restore stability or to clean up toxic pollutants.
biotechnology - CORRECT ANSWER: The field which uses microbes to produce
specific desired products
bright-field microscopy - CORRECT ANSWER: multipurpose technique for live and
preserved specimens; specimen is dark, field is white
capsule stain - CORRECT ANSWER: Cryptococcus neoformans