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Biol 2104 Exam 1 Questions and Complete Solutions Graded A+
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Biol 2104 Exam 1 Questions and Complete Solutions Graded A+
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Biol 2104 Exam 1Questions and
Complete Solutions
Graded A+
Denning [Date] [Course title]
, cells - Answer: the basic units from which living organisms are made; consists of an aqueous solution of
organic molecules enclosed by a membrane
micrometer - Answer: unit of length equal to one millionth (10-6 of a meter)
DNA - Answer: double-stranded polynucleotide formed from two separately linked chains of covalently
linked deoxyribonucleotide units. It serves as the cell's store of genetic information that is transmitted
from generation to generation
RNA - Answer: molecule produced by the transcription of DNA; usually single stranded, it is a
polynucleotide composed of covalently linked ribonucleotide subunits. Serves a variety of structural,
catalytic, and regulatory functions in cells
evolution - Answer: process of gradual modification and adaptation that occurs in living organisms over
generations
genome - Answer: the total genetic information carried by all the chromosomes of a cell or organism
microscope - Answer: instrument for viewing extremely small objects
cytoplasm - Answer: contents of a cell that are contained within its plasma membrane but, in the case of
eukaryotic cells, contained outside the nucleus
nanometer - Answer: unit of length that represents 10-9 meter; commonly used to measure molecules
and organelles
organelle - Answer: a discrete structure or subcompartment of a eukaryotic cell that is specialized to
carry out a particular function. Examples include mitochondria and the golgi apparattus
eukaryote - Answer: an organism whose cells have a distinct nucleus and cytoplasm
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