PCB3023 Exam 1, cell bio test 1
FAU Theisen, CH.1: Cells and
Genome Questions Merged With
100%Correct Answers | 2026 Latest
Update!!!
proteins are able to bind to which of the following types of
biological molecules
- amino acids, sugars, nucleotides, lipids, are basis for most
reactions in cells. All proteins are able to bind to one or more
molecules, often other proteins and bound substances such as
ligands or substrates.
in cells the strongest chemical interaction is?
- covalent bonds; covalent bonds are strong, stable, long-lasting.
hydrogen bonds are...
polar covalent, individually weak, but many bonds together can be
strong.
ionic bonds are...
strong and pliable but can easily be disrupted by polar solvents
(e.g. water)
van der Waals forces are...
,individually very weak
the majority of biological catalyst are made from...
- amino acids
In the A, B, C class of protein transport pump. The
conformation changes that lead to translocation of the
transporter substance are caused by...
- repeated cycles of ATP binding and hydrolysis
True regarding prokaryotic cells?
- has a cell wall
- reproduce by binary fission
- do not exist as true...
- utilize double strands for hereditary material
- do NOT package their DNA so they do NOT need histones
Evolution of the nucleus in eukaryotic organisms has
allowed...
- Segregation of DNA from other cellular processes
- Increase the size of the DNA molecule
When a carbohydrate is oxidized it loses both ____ and ____.
- electrons and energy; Oxidation is the loss of electrons and
energy. The atom is left with a more POSITIVE charge.
what is meant by high specificity between molecules?
- highly complementary physical shape
- highly complementary electro chemical properties
The histones used to package newly replicated DNA
- added to DNA as it is emerging from the replication machinery
mutations within DNA coding regions...
,- usually results to deleterious changes in protein structure
DNA coding regions have important information, any mutations on
these regions are most of the time negative (bad), so it will not be
beneficial.
Entropy is the measure of...
- the amount of disorder in a system
a protein secondary structure is maintained by
- hydrogen bonds
hydrogen bonds are the bonds between atoms
binding of a ligand to a specific enzyme binding site...
- involves numerous weak noncovalent bonds
it is not a permanent binding, so it CANNOT be covalent, it has to
be a weak bond in order for it to be able to break or go back to its
original form.
Chemical analysis of DNA will reveal the following...
- Concentration of Purines equals concentration of Pyrimidines
Because its circular, replication of prokaryotic DNA does
NOT require...
- Telomerase function
Telomerase is used to stabilize the ends of Eukaryotic
chromosomes which are linear. Since prokaryotic DNA is not
linear, it does NOT need telomerase to stabilize its ends.
Flipping out refers to...
- The temporary separation of a base from its compliment to allow
close inspection.
, activation energy is a property of...
- all types of chemical reactions
It is NOT the energy required to push a reaction in an unfavorable
direction.
Universal features of all cells...
- take up matter from their surroundings
- store hereditary information
- use RNA to direct protein synthesis
- all cells use DNA
- all cells replicate their DNA
- transcribe DNA into RNA
- regulate gene expression
- synthesize proteins using mRNA as a template
- require FREE ENERGY
hydrophobic side chains on the outside of a protein will
indicate...
- a mis-folded protein
Proteins are arranged with the polar heads (hydrophilic) facing
outside and the nonpolar tails (hydrophobic) facing inside.
many proteins catalyze utilize both acids and bases by...
- using properties of both simultaneously
hydrogen bonds are common in cells because....
- many of the covalent bonds involving hydrogen are polar.
Water constitutes approximately 70% of the weight of every kind
of cell.
protein homologous found in the same organisms which
have different functions are the result of...
FAU Theisen, CH.1: Cells and
Genome Questions Merged With
100%Correct Answers | 2026 Latest
Update!!!
proteins are able to bind to which of the following types of
biological molecules
- amino acids, sugars, nucleotides, lipids, are basis for most
reactions in cells. All proteins are able to bind to one or more
molecules, often other proteins and bound substances such as
ligands or substrates.
in cells the strongest chemical interaction is?
- covalent bonds; covalent bonds are strong, stable, long-lasting.
hydrogen bonds are...
polar covalent, individually weak, but many bonds together can be
strong.
ionic bonds are...
strong and pliable but can easily be disrupted by polar solvents
(e.g. water)
van der Waals forces are...
,individually very weak
the majority of biological catalyst are made from...
- amino acids
In the A, B, C class of protein transport pump. The
conformation changes that lead to translocation of the
transporter substance are caused by...
- repeated cycles of ATP binding and hydrolysis
True regarding prokaryotic cells?
- has a cell wall
- reproduce by binary fission
- do not exist as true...
- utilize double strands for hereditary material
- do NOT package their DNA so they do NOT need histones
Evolution of the nucleus in eukaryotic organisms has
allowed...
- Segregation of DNA from other cellular processes
- Increase the size of the DNA molecule
When a carbohydrate is oxidized it loses both ____ and ____.
- electrons and energy; Oxidation is the loss of electrons and
energy. The atom is left with a more POSITIVE charge.
what is meant by high specificity between molecules?
- highly complementary physical shape
- highly complementary electro chemical properties
The histones used to package newly replicated DNA
- added to DNA as it is emerging from the replication machinery
mutations within DNA coding regions...
,- usually results to deleterious changes in protein structure
DNA coding regions have important information, any mutations on
these regions are most of the time negative (bad), so it will not be
beneficial.
Entropy is the measure of...
- the amount of disorder in a system
a protein secondary structure is maintained by
- hydrogen bonds
hydrogen bonds are the bonds between atoms
binding of a ligand to a specific enzyme binding site...
- involves numerous weak noncovalent bonds
it is not a permanent binding, so it CANNOT be covalent, it has to
be a weak bond in order for it to be able to break or go back to its
original form.
Chemical analysis of DNA will reveal the following...
- Concentration of Purines equals concentration of Pyrimidines
Because its circular, replication of prokaryotic DNA does
NOT require...
- Telomerase function
Telomerase is used to stabilize the ends of Eukaryotic
chromosomes which are linear. Since prokaryotic DNA is not
linear, it does NOT need telomerase to stabilize its ends.
Flipping out refers to...
- The temporary separation of a base from its compliment to allow
close inspection.
, activation energy is a property of...
- all types of chemical reactions
It is NOT the energy required to push a reaction in an unfavorable
direction.
Universal features of all cells...
- take up matter from their surroundings
- store hereditary information
- use RNA to direct protein synthesis
- all cells use DNA
- all cells replicate their DNA
- transcribe DNA into RNA
- regulate gene expression
- synthesize proteins using mRNA as a template
- require FREE ENERGY
hydrophobic side chains on the outside of a protein will
indicate...
- a mis-folded protein
Proteins are arranged with the polar heads (hydrophilic) facing
outside and the nonpolar tails (hydrophobic) facing inside.
many proteins catalyze utilize both acids and bases by...
- using properties of both simultaneously
hydrogen bonds are common in cells because....
- many of the covalent bonds involving hydrogen are polar.
Water constitutes approximately 70% of the weight of every kind
of cell.
protein homologous found in the same organisms which
have different functions are the result of...
