PCB3023 Exam 1, cell bio test 1 FAU Theisen,
CH.1: Cells and Genome Updated Exam 2026
WITH Recent Newest Verified And Well Analyzed
Exam Questions (Actual Exam 2026-2027)
Correct Detailed & Verified ANSWERS (100%
Accurate Solutions) ALREADY GRADED
A+||NEWEST VERSION Of The Exam Guarantee
Pass!!
in cells the strongest chemical interaction is? - ANSWERS-- covalent bonds ; covalent
bonds are strong, stable, long-lasting.
hydrogen bonds are... - ANSWERS-polar covalent, individually weak, but many bonds
together can be strong.
Universal features of all cells... - ANSWERS-- 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... - ANSWERS-- a mis-
folded protein
,Proteins are arranged with the polar heads (hydrophilic) facing outside and the nonpolar
tails (hydrophobic) facing inside.
many protein catalyzes utilize both acids and bases by... - ANSWERS-- using properties
of both simultaneously
hydrogen bonds are common in cells because.... - ANSWERS-- 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... - ANSWERS-gene duplication events
introns are... - ANSWERS-- noncoding regions of mRNA molecule Introns are the
noncoding regions on DNA and Extrons are the coding regions on DNA
The processes of replication will be best described as... - ANSWERS-- a fast error
prone process that relies on repair mechanisms
retroviruses... - ANSWERS-- code for an enzyme called reverse transcriptase
- code for protein which which provide for a protective coding
- code for global genetic elements
the enzymatic activity of many proteins can be altered by addition of phosphate group
by class of enzymes called... - ANSWERS-- Kinases
Protein Kinases phosphorylate ; Protein Phosphatases dephosphorylate
the hydrolysis of ATP is... - ANSWERS-- Has a NEGATIVE delta G value
,ATP hydrolysis is the breakdown of the ATP bond, which will release energy, this is a
favorable reaction. Favorable reactions increase entropy, and is represented by a -G
(Gibs Law)
Polar covalent bond - ANSWERS-- sharing of electrons between two atoms of different
electronegativity
cells often assemble large complexes from a smaller preform molecule. The advantage
of this is? - ANSWERS-- efficient control of assembly
- few genes required
- less energy required
ionic bonds are... - ANSWERS-strong and pliable but can easily be disrupted by polar
solvents (eg. water)
van der waals forces are... - ANSWERS-individually very weak
the majority of biological catalyst are made from... - ANSWERS-- 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... - ANSWERS-- repeated
cycles of ATP binding and hydrolysis
True regarding prokaryotic cells? - ANSWERS-- 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... - ANSWERS--
Segregation of DNA from other cellular processes
- Increase the size of the DNA molecule
When a carbohydrate is oxidized it loses both ____ and ____. - ANSWERS-- 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? - ANSWERS-- highly
complementary physical shape
- highly complementary electro chemical properties
The histones used to package newly replicated DNA - ANSWERS-- added to DNA as it
is emerging from the replication machinery
mutations within DNA coding regions... - ANSWERS-- 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... - ANSWERS-- the amount of disorder in a system
a protein secondary structure is maintained by - ANSWERS-- hydrogen bonds
hydrogen bonds are the bonds between atoms
binding of a ligand to a specific enzyme binding site... - ANSWERS-- 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.
CH.1: Cells and Genome Updated Exam 2026
WITH Recent Newest Verified And Well Analyzed
Exam Questions (Actual Exam 2026-2027)
Correct Detailed & Verified ANSWERS (100%
Accurate Solutions) ALREADY GRADED
A+||NEWEST VERSION Of The Exam Guarantee
Pass!!
in cells the strongest chemical interaction is? - ANSWERS-- covalent bonds ; covalent
bonds are strong, stable, long-lasting.
hydrogen bonds are... - ANSWERS-polar covalent, individually weak, but many bonds
together can be strong.
Universal features of all cells... - ANSWERS-- 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... - ANSWERS-- a mis-
folded protein
,Proteins are arranged with the polar heads (hydrophilic) facing outside and the nonpolar
tails (hydrophobic) facing inside.
many protein catalyzes utilize both acids and bases by... - ANSWERS-- using properties
of both simultaneously
hydrogen bonds are common in cells because.... - ANSWERS-- 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... - ANSWERS-gene duplication events
introns are... - ANSWERS-- noncoding regions of mRNA molecule Introns are the
noncoding regions on DNA and Extrons are the coding regions on DNA
The processes of replication will be best described as... - ANSWERS-- a fast error
prone process that relies on repair mechanisms
retroviruses... - ANSWERS-- code for an enzyme called reverse transcriptase
- code for protein which which provide for a protective coding
- code for global genetic elements
the enzymatic activity of many proteins can be altered by addition of phosphate group
by class of enzymes called... - ANSWERS-- Kinases
Protein Kinases phosphorylate ; Protein Phosphatases dephosphorylate
the hydrolysis of ATP is... - ANSWERS-- Has a NEGATIVE delta G value
,ATP hydrolysis is the breakdown of the ATP bond, which will release energy, this is a
favorable reaction. Favorable reactions increase entropy, and is represented by a -G
(Gibs Law)
Polar covalent bond - ANSWERS-- sharing of electrons between two atoms of different
electronegativity
cells often assemble large complexes from a smaller preform molecule. The advantage
of this is? - ANSWERS-- efficient control of assembly
- few genes required
- less energy required
ionic bonds are... - ANSWERS-strong and pliable but can easily be disrupted by polar
solvents (eg. water)
van der waals forces are... - ANSWERS-individually very weak
the majority of biological catalyst are made from... - ANSWERS-- 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... - ANSWERS-- repeated
cycles of ATP binding and hydrolysis
True regarding prokaryotic cells? - ANSWERS-- 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... - ANSWERS--
Segregation of DNA from other cellular processes
- Increase the size of the DNA molecule
When a carbohydrate is oxidized it loses both ____ and ____. - ANSWERS-- 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? - ANSWERS-- highly
complementary physical shape
- highly complementary electro chemical properties
The histones used to package newly replicated DNA - ANSWERS-- added to DNA as it
is emerging from the replication machinery
mutations within DNA coding regions... - ANSWERS-- 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... - ANSWERS-- the amount of disorder in a system
a protein secondary structure is maintained by - ANSWERS-- hydrogen bonds
hydrogen bonds are the bonds between atoms
binding of a ligand to a specific enzyme binding site... - ANSWERS-- 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.
