BIO 168 FINAL EXAM STUDY GUIDE
(EXAM 1-5)QUESTIONS &
ANSWERS(RATED A+)
Simple diffusion requires - ANSWERconcentration gradient
Which of the following is NOT a function of carbohydrates in the body? -
ANSWERprotection
Most of a cell's DNA is located in its: - ANSWERnucleus
An organelle is - ANSWERa small structure within a cell
During osmosis, water moves across a selectively permeable membrane toward a
solution with: - ANSWERthe highest solute concentration.
Which of the following statements about the cytoskeleton is FALSE? - ANSWERThe
cytoskeleton synthesizes proteins
Consider the following five terms. Which term does not belong with the other four
terms? - ANSWERglucose
What type of bond is responsible for the surface tension of water? -
ANSWERhydrogen bond
Human cells that lack centrioles cannot: - ANSWERdivide
Which of the following best describes the structure of the plasma membrane? -
ANSWERThe plasma membrane is a phospholipid bilayer surrounding the cell.
The maintenance of a relatively constant internal environment is termed: -
ANSWERhomeostasis
Yuri is working with a chemical in lab. This chemical is composed of repetitive units
that include a phosphate group, a nitrogenous base, and a sugar known as ribose.
He is working with - ANSWERa nucleic acid
Which of the following processes are functionally opposite to one another? -
ANSWERendocytosis and exocytosis
A process that requires energy to move a substance against its concentration
gradient is called: - ANSWERactive transport
Tightly coiled DNA molecules present during cell division are known as: -
ANSWERchromosomes
,Which of the following is the correct sequence, from simplest to most complex, in the
levels of structural organization of the human body? - ANSWERchemical level,
cellular level, tissue level, organ level, organ system level, organismal level
Where does protein synthesis occur? - ANSWERribosomes
Blood pressure in arteries is higher than the blood pressure in capillaries. Blood
flows from arteries to capillaries due to the presence of a: - ANSWERpressure
gradient
Cations and anions that dissociate in water are sometimes called -
ANSWERelectrolytes, because they can conduct an electrical current
You can differentiate the smooth endoplasmic reticulum (SER) from the rough
endoplasmic reticulum (PER) due to the presence of ------------ on the RER -
ANSWERbound ribosomes
Na+ is best known as a(n): - ANSWERion
Active transport processes: - ANSWERrequire cells to expend energy (ATP)
Phospholipids - ANSWERare found in cell membranes
The monomer of the carbohydrates is the - ANSWERmonosaccharide
A white blood engulfs bacterium through a process called : - ANSWERendocytosis
what is transported across a membrane during osmosis - ANSWERwater
Lipids - ANSWERare an important component of cell membranes.
Muscle cells require an abundant amount of ATP to function. Therefore, muscle cells
have numerous: - ANSWERmitochondria
Which of the following is an organic compound? - ANSWERsucrose (C12H22O11)
A plane that divides the body into superior and inferior parts is known as a: -
ANSWERtransverse (horizontal, or cross) plane.
Potential energy is - ANSWERstored energy that could do work but is not doing so.
What does the H in the pH scale represent? - ANSWERconcentration of H+ ions in
solution
Deoxyribose is a sugar found in - ANSWERDNA
Amino acids are the building blocks for: - ANSWERproteins
What type of membrane proteins form a passageway through the plasma
membrane? - ANSWERchannel protein
, What is NOT a function of the plasma membrane? - ANSWERcatalyze
macromolecules into subunits
Glycogen is the - ANSWERstorage carbohydrate in animals.
What is NOT a function of the peroxisome? - ANSWERprotein synthesis
lonic bonds result from: - ANSWERthe transfer of electrons from a metal atom to a
nonmetal atom.
What is the smallest level of structural organization in the human body? -
ANSWERchemical level
What is the building block of a lipid? - ANSWERfatty acid
Characteristics of living organisms include the ability to - ANSWERrespond and
adapt to their environment
When you go outside on a hot summer day, your body temperature heats up above
the normal range. Receptors in your brain detect the change in body temperature.
The brain activates nerve cells that send messages to sweat glands, causing the
body temperature to fall as the sweat evaporates from the skin. What part of this
feedback loop is the stimulus? - ANSWERIncreased body temperature
The study of the structural features and functions of the cell is - ANSWERcytology
On the pH scale, which number has the highest concentration of hydrogen lons? -
ANSWERPH 1
Sodium ions are moving with their concentration gradient with the use of a protein
channel across a plasma membrane. Determine the type of membrane transport
used to transport these sodium ions. - ANSWERfacilitated diffusion
A cell is placed into a 3% dextrose solution. At that concentration, the solution is
isotonic to the cell. If the concentratico of dextrose in the solution is increased to 5%,
the cell is now in a(n): - ANSWERhypertonic solution
Which organelle modifies, sorts, and packages proteins and lipids for export from the
cell? - ANSWERGolgi Apparatus
An organ system is - ANSWERa group of organs with a common set of functions.
Which organ system includes blood vessels and the heart? -
ANSWERcardiovascular system
What contributes to the calculation of the mass number? - ANSWERsum of protons
and neutrons
Polysaccharides - ANSWERcontain long chains of monosaccharides.
(EXAM 1-5)QUESTIONS &
ANSWERS(RATED A+)
Simple diffusion requires - ANSWERconcentration gradient
Which of the following is NOT a function of carbohydrates in the body? -
ANSWERprotection
Most of a cell's DNA is located in its: - ANSWERnucleus
An organelle is - ANSWERa small structure within a cell
During osmosis, water moves across a selectively permeable membrane toward a
solution with: - ANSWERthe highest solute concentration.
Which of the following statements about the cytoskeleton is FALSE? - ANSWERThe
cytoskeleton synthesizes proteins
Consider the following five terms. Which term does not belong with the other four
terms? - ANSWERglucose
What type of bond is responsible for the surface tension of water? -
ANSWERhydrogen bond
Human cells that lack centrioles cannot: - ANSWERdivide
Which of the following best describes the structure of the plasma membrane? -
ANSWERThe plasma membrane is a phospholipid bilayer surrounding the cell.
The maintenance of a relatively constant internal environment is termed: -
ANSWERhomeostasis
Yuri is working with a chemical in lab. This chemical is composed of repetitive units
that include a phosphate group, a nitrogenous base, and a sugar known as ribose.
He is working with - ANSWERa nucleic acid
Which of the following processes are functionally opposite to one another? -
ANSWERendocytosis and exocytosis
A process that requires energy to move a substance against its concentration
gradient is called: - ANSWERactive transport
Tightly coiled DNA molecules present during cell division are known as: -
ANSWERchromosomes
,Which of the following is the correct sequence, from simplest to most complex, in the
levels of structural organization of the human body? - ANSWERchemical level,
cellular level, tissue level, organ level, organ system level, organismal level
Where does protein synthesis occur? - ANSWERribosomes
Blood pressure in arteries is higher than the blood pressure in capillaries. Blood
flows from arteries to capillaries due to the presence of a: - ANSWERpressure
gradient
Cations and anions that dissociate in water are sometimes called -
ANSWERelectrolytes, because they can conduct an electrical current
You can differentiate the smooth endoplasmic reticulum (SER) from the rough
endoplasmic reticulum (PER) due to the presence of ------------ on the RER -
ANSWERbound ribosomes
Na+ is best known as a(n): - ANSWERion
Active transport processes: - ANSWERrequire cells to expend energy (ATP)
Phospholipids - ANSWERare found in cell membranes
The monomer of the carbohydrates is the - ANSWERmonosaccharide
A white blood engulfs bacterium through a process called : - ANSWERendocytosis
what is transported across a membrane during osmosis - ANSWERwater
Lipids - ANSWERare an important component of cell membranes.
Muscle cells require an abundant amount of ATP to function. Therefore, muscle cells
have numerous: - ANSWERmitochondria
Which of the following is an organic compound? - ANSWERsucrose (C12H22O11)
A plane that divides the body into superior and inferior parts is known as a: -
ANSWERtransverse (horizontal, or cross) plane.
Potential energy is - ANSWERstored energy that could do work but is not doing so.
What does the H in the pH scale represent? - ANSWERconcentration of H+ ions in
solution
Deoxyribose is a sugar found in - ANSWERDNA
Amino acids are the building blocks for: - ANSWERproteins
What type of membrane proteins form a passageway through the plasma
membrane? - ANSWERchannel protein
, What is NOT a function of the plasma membrane? - ANSWERcatalyze
macromolecules into subunits
Glycogen is the - ANSWERstorage carbohydrate in animals.
What is NOT a function of the peroxisome? - ANSWERprotein synthesis
lonic bonds result from: - ANSWERthe transfer of electrons from a metal atom to a
nonmetal atom.
What is the smallest level of structural organization in the human body? -
ANSWERchemical level
What is the building block of a lipid? - ANSWERfatty acid
Characteristics of living organisms include the ability to - ANSWERrespond and
adapt to their environment
When you go outside on a hot summer day, your body temperature heats up above
the normal range. Receptors in your brain detect the change in body temperature.
The brain activates nerve cells that send messages to sweat glands, causing the
body temperature to fall as the sweat evaporates from the skin. What part of this
feedback loop is the stimulus? - ANSWERIncreased body temperature
The study of the structural features and functions of the cell is - ANSWERcytology
On the pH scale, which number has the highest concentration of hydrogen lons? -
ANSWERPH 1
Sodium ions are moving with their concentration gradient with the use of a protein
channel across a plasma membrane. Determine the type of membrane transport
used to transport these sodium ions. - ANSWERfacilitated diffusion
A cell is placed into a 3% dextrose solution. At that concentration, the solution is
isotonic to the cell. If the concentratico of dextrose in the solution is increased to 5%,
the cell is now in a(n): - ANSWERhypertonic solution
Which organelle modifies, sorts, and packages proteins and lipids for export from the
cell? - ANSWERGolgi Apparatus
An organ system is - ANSWERa group of organs with a common set of functions.
Which organ system includes blood vessels and the heart? -
ANSWERcardiovascular system
What contributes to the calculation of the mass number? - ANSWERsum of protons
and neutrons
Polysaccharides - ANSWERcontain long chains of monosaccharides.
