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Midterm Review
Vocabulary K
5
Biology
12th Grade
01/30/2008

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Term

karyotype

Definition
a display of the chromosome pairs of a cell arranged by size and shape.
Term
ketone
Definition
an organic compound with a carbonyl group of which the carbon atom is bonded to two other carbons.
Term

keystone species

Definition
a species that is not necessarily abundant in a community yet exerts strong control on community structure by the nature of its ecological role or niche.
Term
kinetochore
Definition
a specialized region on the centromere that links each sister chromatid to the mitotic spindle.
Term
Krebs cycle
Definition
a chemical cycle involving eight steps that completes the metabolic breakdown of glucose molecules to carbon dioxide; occurs within the mitochondrion; the second major stage in cellular respiration.
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