SEMINOLE STATE CAMPELL
BIOLOGY FINAL EXAM REVIEW
Polypeptides are assembled from _____. - ANSWERS-Amino Acids
RNA processing converts the RNA transcript into _____. -
ANSWERS-mRNA
During transcription, _________ untwists a portion of the DNA
double helix. - ANSWERS-RNA polymerase
Where the RNA polymerase begins is called the - ANSWERS-
promoter
The direction of synthesis of an RNA transcript is _____. -
ANSWERS-5' —> 3'
RNA polymerase moves in which direction along the DNA? -
ANSWERS-3' → 5' along the template strand
The flow of information in a cell proceeds _____. (Concept 17.1) -
ANSWERS-from DNA to RNA to protein
RNA polymerase ______ (Concept 17.2) - ANSWERS-Unwinds the
double helix and adds nucleotides
,After an RNA molecule is transcribed from a eukaryotic gene,
portions called _____ are removed and the remaining _____ are
spliced together to produce an mRNA molecule with a continuous
coding sequence. (Concept 17.3) - ANSWERS-introns ... exons
What is a ribozyme? (Concept 17.3) - ANSWERS-A biological
catalyst consisting of RNA
Which one of the following is true of tRNAs? (Concept 17.4) -
ANSWERS-Each tRNA binds a particular amino acid.
A mutagen causes _____. (Concept 17.5) - ANSWERS-a change in
the base sequence of DNA
What is currently considered the best definition of a gene? (Concept
17.6) - ANSWERS-A gene codes for either a polypeptide or an RNA
molecule.
Which of the following products of the light reactions of
photosynthesis is *consumed* during the Calvin cycle? - ANSWERS-
NADPH
Why are hydrocarbons insoluble in water? - ANSWERS-The majority
of their bonds are nonpolar covalent carbon-to-hydrogen linkages.
, What is positive feedback? - ANSWERS-An end product speeds up
its own production.
What is negative feedback? - ANSWERS-Accumulation of the end
product slows its production.
What is an example of positive feedback? - ANSWERS-The
increasing labor contractions of childbirth before delivery.
Which of these is reflective of the hierarchical organization of life
from most to least inclusive? - ANSWERS-kingdom, phylum, class,
order, family, genus, species
A controlled experiment is one in where - ANSWERS-there are at
least two groups, one of which does not receive the experimental
treatment.
A substance that cannot be broken down into other substances by
ordinary chemical procedures is a(n) - ANSWERS-element.
A substance that consists of two or more substances in a fixed ratio is
a - ANSWERS-compound.
Which of the following subatomic particles always has a positive
charge? - ANSWERS-proton
BIOLOGY FINAL EXAM REVIEW
Polypeptides are assembled from _____. - ANSWERS-Amino Acids
RNA processing converts the RNA transcript into _____. -
ANSWERS-mRNA
During transcription, _________ untwists a portion of the DNA
double helix. - ANSWERS-RNA polymerase
Where the RNA polymerase begins is called the - ANSWERS-
promoter
The direction of synthesis of an RNA transcript is _____. -
ANSWERS-5' —> 3'
RNA polymerase moves in which direction along the DNA? -
ANSWERS-3' → 5' along the template strand
The flow of information in a cell proceeds _____. (Concept 17.1) -
ANSWERS-from DNA to RNA to protein
RNA polymerase ______ (Concept 17.2) - ANSWERS-Unwinds the
double helix and adds nucleotides
,After an RNA molecule is transcribed from a eukaryotic gene,
portions called _____ are removed and the remaining _____ are
spliced together to produce an mRNA molecule with a continuous
coding sequence. (Concept 17.3) - ANSWERS-introns ... exons
What is a ribozyme? (Concept 17.3) - ANSWERS-A biological
catalyst consisting of RNA
Which one of the following is true of tRNAs? (Concept 17.4) -
ANSWERS-Each tRNA binds a particular amino acid.
A mutagen causes _____. (Concept 17.5) - ANSWERS-a change in
the base sequence of DNA
What is currently considered the best definition of a gene? (Concept
17.6) - ANSWERS-A gene codes for either a polypeptide or an RNA
molecule.
Which of the following products of the light reactions of
photosynthesis is *consumed* during the Calvin cycle? - ANSWERS-
NADPH
Why are hydrocarbons insoluble in water? - ANSWERS-The majority
of their bonds are nonpolar covalent carbon-to-hydrogen linkages.
, What is positive feedback? - ANSWERS-An end product speeds up
its own production.
What is negative feedback? - ANSWERS-Accumulation of the end
product slows its production.
What is an example of positive feedback? - ANSWERS-The
increasing labor contractions of childbirth before delivery.
Which of these is reflective of the hierarchical organization of life
from most to least inclusive? - ANSWERS-kingdom, phylum, class,
order, family, genus, species
A controlled experiment is one in where - ANSWERS-there are at
least two groups, one of which does not receive the experimental
treatment.
A substance that cannot be broken down into other substances by
ordinary chemical procedures is a(n) - ANSWERS-element.
A substance that consists of two or more substances in a fixed ratio is
a - ANSWERS-compound.
Which of the following subatomic particles always has a positive
charge? - ANSWERS-proton
