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BIL 255 EXAM 1 QUESTIONS AND VERIFIED ANSWERS
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BIL 255 EXAM 1 QUESTIONS AND VERIFIED ANSWERS....
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vitalism - ANSWER life is a result of a vital forcemechanists - ANSWER life is a mechanical process that can be explained by
the laws of chemistry and physics
What are the three domains? - ANSWER eubacteria, archaea, eukarya
Carl Woese - ANSWER compared nucleotide sequences of small subunit RNA
from many species.. ribosomes and rRNA are found in all cells.. common
ancestry
What are the two successful plans of cellular organization? - ANSWER
prokaryotes and eukaryotes
What are the three types of prokaryote shapes? - ANSWER spherical, rod-
shaped, and spiral
What is the size of a prokaryote? - ANSWER 0.1 to 10micrometers
Do prokaryotes have chromosomes? - ANSWER no- naked DNA
prokaryotes lack - ANSWER internal membrane-bound organelles
types of eukaryotes - ANSWER algae, protozoa, fungi, slime molds, plants
and animals
size of eukaryotes? - ANSWER 5.0 to 20 micrometers
What makes up the endomembrane system? - ANSWER nuclear membrane,
ER, golgi and vesicles
Aristotle believed - ANSWER animal, vegetable, mineral
, Empedocles - ANSWER earth, water, air, fire
What makes a good model organism? - ANSWER Cheap, plentiful, quick
reproductive cycles, simple genomes
What is a model organism? - ANSWER a species that is widely studied
because it is easy to
study
Examples of model organisms - ANSWER viruses, bacteria, fruit flies,
roundworms, yeast, zebrafish, mice, plants
What are model organisms used to study in CMB? - ANSWER gene
expression
frozen culture cells show - ANSWER no signs of life
Attributes of the living condition - ANSWER autonomous replication, life
begets life,
Where do cells store their hereditary information? - ANSWER DNA
What type of method is used to replicate DNA? - ANSWER Semi-
conservative (complementary templated polymerization)
What did Rudolph Virchow think? - ANSWER All living cells arise from
prexisting cells; the biogenic law
What is spontaneous generation? - ANSWER Whole organisms could arise
spontaneously or from inanimate matter
all living things have evolved from a common ancestral cell thru - ANSWER
natural selection and genetic drift
What is responsible for lifes chemical reactions? - ANSWER Proteins
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