BIOLOGY 1442 LATEST FINAL EXAM 2025 SOLVED
UNIVERSITY OF TEXAS AT ARLINGTON VERIFIED
FALL-SPRING
A student examining leaf cross section under a microscope finds many loosely packed cells with
relatively thin cell walls. The cells have numerous chloroplasts. What type of cells are they?
Parenchyma
You and a friend were in line for a movie when you noticed the woman in front of you sneezing and
coughing. Both of you were equally exposed to the woman's virus, but over the next few days, only your
friend acquires flu-like symptoms and was ill for almost a week before recovering. Which of the
following is a logical explanation for this?
You had an adaptive immunity to that virus.
The polarity of a plant is established when ___.
The shoot-root axis is established in the embryo.
An individual who has been bitten by a poisonous snake that has a fast-acting toxin would likely benefit
from ___.
injection of antibodies to the toxin.
Totipotency is a term used to describe a cell's ability to give rise to a to a complete new organism. In
plants, this means that___.
cell differentiation depends largely on the control of gene expression.
A patient complaining of watery, itchy eyes and sneezing after being given a flower bouquet as a
birthday gift should be first treated with ___.
antihistamines.
Given that early land plants most likely share common ancestors with green algae, the earliest land
plants were most likely ___.
nonvascular plants that grew leafless, photosynthetic shoots.
Which of the following statements about epitopes are correct?
,I. B-cell receptors bond to epitopes
II. T-cell receptors bind to epitopes
III. there can be 10 or more different epitopes to each antigen
IV. there is one-to-one correspondence between antigen and epitope
I, II, and III are correct statements.
The ___ is the most efficient route of water movement in plants, while the ___ is the most select.
apoplast; transmembrane
An immune response to a tissue graft will differ form an immune response to a bacterium because ___.
MHC molecules of the donor may stimulate rejection of the graft tissue, but bacteria lack MHC
molecules.
When an animal cell is placed in a hypotonic solution and water enters the cell via osmosis, the volume
of the cell increases until it bursts. This does not happened to plant cell, because ___.
they have cell walls, which provide pressure to counteract the pressure of the incoming water.
What is the primary function of stems?
maximization of photosynthesis by leaves.
You are a physician, you are seeing a patient who complains of abnormal fatigue during exercise. You
find that the immediate problem is a buildup of carbon dioxide in the tissues. What is most likely the
cause?
abnormal carbonic anhydrase
The only vertebrate in which blood flows directly from respiratory organs to body tissues without first
returning to the heart rate are the ___.
fishes.
When you are eating Brussel sprouts, you are eating ___.
Large axillary buds.
An oil-water mixture works as as insecticidal spray against mosquitoes and others insects because it ___.
blocks the openings into the tracheal system
Leaf thickness represents a trade off between ___.
, Water retention and carbon dioxide absorption.
Carbon dioxide levels in the blood and cerebrospinal fluid affect pH. This enables the organism to sense
a disturbance in gas levels as ___.
the medulla oblongata, wh uh is in contact with cerebrospinal fluid, monitors pH and uses this measure
to control breathing
Trichomes ___.
Repel or trap insects.
An anthropologist discovers the fossilized heart of an extinct animal. The evidence indicates that the
organism's heart was large, well-formed, and had four chambers, with no connection between right and
left side. A reasonable conclusion supported by these observations is that the ___.
animal was endothermic and had a high metabolic rate.
Which of the following haven unevenly thickened primary walls that support young, growing parts of the
plant?
Collenchyma cells.
During most daily activities, the human respiration rate is most closely linked to the blood vessels of
___.
Carbon dioxide
Which of the following are water-conducting cells that are dead at functional maturity?
Tracheids and vessel elements
Small swollen areas in the neck, groin, and axillary region are associated with ___.
increased activity of the immune system
Plant meristemic cells ___.
are undifferentiated cells that produce new cells.
Which of the following mechanisms are used to regulate blood pressure in the closed circulatory system
of vertebrates?
I. changing the force of heart contraction
UNIVERSITY OF TEXAS AT ARLINGTON VERIFIED
FALL-SPRING
A student examining leaf cross section under a microscope finds many loosely packed cells with
relatively thin cell walls. The cells have numerous chloroplasts. What type of cells are they?
Parenchyma
You and a friend were in line for a movie when you noticed the woman in front of you sneezing and
coughing. Both of you were equally exposed to the woman's virus, but over the next few days, only your
friend acquires flu-like symptoms and was ill for almost a week before recovering. Which of the
following is a logical explanation for this?
You had an adaptive immunity to that virus.
The polarity of a plant is established when ___.
The shoot-root axis is established in the embryo.
An individual who has been bitten by a poisonous snake that has a fast-acting toxin would likely benefit
from ___.
injection of antibodies to the toxin.
Totipotency is a term used to describe a cell's ability to give rise to a to a complete new organism. In
plants, this means that___.
cell differentiation depends largely on the control of gene expression.
A patient complaining of watery, itchy eyes and sneezing after being given a flower bouquet as a
birthday gift should be first treated with ___.
antihistamines.
Given that early land plants most likely share common ancestors with green algae, the earliest land
plants were most likely ___.
nonvascular plants that grew leafless, photosynthetic shoots.
Which of the following statements about epitopes are correct?
,I. B-cell receptors bond to epitopes
II. T-cell receptors bind to epitopes
III. there can be 10 or more different epitopes to each antigen
IV. there is one-to-one correspondence between antigen and epitope
I, II, and III are correct statements.
The ___ is the most efficient route of water movement in plants, while the ___ is the most select.
apoplast; transmembrane
An immune response to a tissue graft will differ form an immune response to a bacterium because ___.
MHC molecules of the donor may stimulate rejection of the graft tissue, but bacteria lack MHC
molecules.
When an animal cell is placed in a hypotonic solution and water enters the cell via osmosis, the volume
of the cell increases until it bursts. This does not happened to plant cell, because ___.
they have cell walls, which provide pressure to counteract the pressure of the incoming water.
What is the primary function of stems?
maximization of photosynthesis by leaves.
You are a physician, you are seeing a patient who complains of abnormal fatigue during exercise. You
find that the immediate problem is a buildup of carbon dioxide in the tissues. What is most likely the
cause?
abnormal carbonic anhydrase
The only vertebrate in which blood flows directly from respiratory organs to body tissues without first
returning to the heart rate are the ___.
fishes.
When you are eating Brussel sprouts, you are eating ___.
Large axillary buds.
An oil-water mixture works as as insecticidal spray against mosquitoes and others insects because it ___.
blocks the openings into the tracheal system
Leaf thickness represents a trade off between ___.
, Water retention and carbon dioxide absorption.
Carbon dioxide levels in the blood and cerebrospinal fluid affect pH. This enables the organism to sense
a disturbance in gas levels as ___.
the medulla oblongata, wh uh is in contact with cerebrospinal fluid, monitors pH and uses this measure
to control breathing
Trichomes ___.
Repel or trap insects.
An anthropologist discovers the fossilized heart of an extinct animal. The evidence indicates that the
organism's heart was large, well-formed, and had four chambers, with no connection between right and
left side. A reasonable conclusion supported by these observations is that the ___.
animal was endothermic and had a high metabolic rate.
Which of the following haven unevenly thickened primary walls that support young, growing parts of the
plant?
Collenchyma cells.
During most daily activities, the human respiration rate is most closely linked to the blood vessels of
___.
Carbon dioxide
Which of the following are water-conducting cells that are dead at functional maturity?
Tracheids and vessel elements
Small swollen areas in the neck, groin, and axillary region are associated with ___.
increased activity of the immune system
Plant meristemic cells ___.
are undifferentiated cells that produce new cells.
Which of the following mechanisms are used to regulate blood pressure in the closed circulatory system
of vertebrates?
I. changing the force of heart contraction
