BI 212 PRACTICE QUESTIONS WITH
ACCURATE AND VERIFIED SOLUTIONS 100%
CORRECT.
Essential nutrients are nutrients that are required for growth but cannot be
synthesized.
true
What kind of muscle tissue do you except in the esophagus?
smooth
During childbirth the intensity of uterine contraction increases. This is an
example of _____.
negative feedback
What is the significance of major histocompatibility complex (MHC) molecules?
MHC molecules act as key recognition sites for T cells
The oxygen content of blood in the pulmonary artery is
low
Which of the following are true statements? Select all that apply.
Mast cells mediate inflammatory responses.
Macrophages engulf pathogens.
Natural killer cells circulate and interact with surface proteins.
How is the heat and water loss in smaller animals compared to larger animals?
They lose heat and water more _____.
rapidly
Why is the large surface area in the small intestine advantageous?
,it facilitates absorption
Which type of animal tissue has an extensive extracellular matrix surrounding a
tissue?
connective
Which of the following sequences is accurate?
Antigen fragments are presented by Class I MHC - cytotoxic T cell recognizes and
binds - infected cell undergoes apoptosis
Which of the following is an example of positive feedback?
None of the mentioned examples.
Which vitamin can only be obtained from animal or yeast products?
B12
Where does selective secretion of toxins and drugs take place in the nephron?
structure W
Toll-like receptors (TLRs) are important because
they recognize specific components of pathogens
What is the significance of major histocompatibility complex (MHC) molecules?
MHC molecules act as key recognition sites for T cells
Countercurrent exchangers are found in which of the following (select all that
apply)
the mammalian kidney
gills of fishes
In individuals that lack antidiuretic hormone (ADH), you would expect urine to
have ____ as compared to individuals with normal levels of ADH.
Higher volume and lower osmolarity
Which of the following situations can activate helper T cells?
, when an antigen is displayed by a dendritic cell
A kitten raised at sea level has trouble breathing at the top of a mountain. Why?
The partial pressure of oxygen is lower on the mountain.
Why are the renal artery and vein critical to the process of osmoregulation in
mammals?
The renal artery delivers blood with nitrogenous waste to the kidney, and the renal
vein brings blood with less nitrogenous wastes away from the kidneys.
What is true for uric acid? (select all that apply)
the primary nitrogenous waste product of most birds
associated with high energy cost of synthesis
very low solubility in water
What kind of receptor is show in the figure?
T-cell receptor
Killifish are found living in many different countries and on several continents.
They live in small stagnant pools of fresh water, and they excrete urea as a
nitrogenous waste. What is the advantage of this adaptation?
Small stagnant pools do not provide enough water to dilute ammonia, which is toxic.
An individual that has not eaten for a day would show high levels of which of the
following in their blood sample?
glucagon
What inhibits an action potential in a hair cell?
Outflow of K+ ions
The volume of sound corresponds to the _____ of the pressure wave.
amplitude
A patient sustains a serious injury to their hypothalamus. What problems might
this patient suffer from?
ACCURATE AND VERIFIED SOLUTIONS 100%
CORRECT.
Essential nutrients are nutrients that are required for growth but cannot be
synthesized.
true
What kind of muscle tissue do you except in the esophagus?
smooth
During childbirth the intensity of uterine contraction increases. This is an
example of _____.
negative feedback
What is the significance of major histocompatibility complex (MHC) molecules?
MHC molecules act as key recognition sites for T cells
The oxygen content of blood in the pulmonary artery is
low
Which of the following are true statements? Select all that apply.
Mast cells mediate inflammatory responses.
Macrophages engulf pathogens.
Natural killer cells circulate and interact with surface proteins.
How is the heat and water loss in smaller animals compared to larger animals?
They lose heat and water more _____.
rapidly
Why is the large surface area in the small intestine advantageous?
,it facilitates absorption
Which type of animal tissue has an extensive extracellular matrix surrounding a
tissue?
connective
Which of the following sequences is accurate?
Antigen fragments are presented by Class I MHC - cytotoxic T cell recognizes and
binds - infected cell undergoes apoptosis
Which of the following is an example of positive feedback?
None of the mentioned examples.
Which vitamin can only be obtained from animal or yeast products?
B12
Where does selective secretion of toxins and drugs take place in the nephron?
structure W
Toll-like receptors (TLRs) are important because
they recognize specific components of pathogens
What is the significance of major histocompatibility complex (MHC) molecules?
MHC molecules act as key recognition sites for T cells
Countercurrent exchangers are found in which of the following (select all that
apply)
the mammalian kidney
gills of fishes
In individuals that lack antidiuretic hormone (ADH), you would expect urine to
have ____ as compared to individuals with normal levels of ADH.
Higher volume and lower osmolarity
Which of the following situations can activate helper T cells?
, when an antigen is displayed by a dendritic cell
A kitten raised at sea level has trouble breathing at the top of a mountain. Why?
The partial pressure of oxygen is lower on the mountain.
Why are the renal artery and vein critical to the process of osmoregulation in
mammals?
The renal artery delivers blood with nitrogenous waste to the kidney, and the renal
vein brings blood with less nitrogenous wastes away from the kidneys.
What is true for uric acid? (select all that apply)
the primary nitrogenous waste product of most birds
associated with high energy cost of synthesis
very low solubility in water
What kind of receptor is show in the figure?
T-cell receptor
Killifish are found living in many different countries and on several continents.
They live in small stagnant pools of fresh water, and they excrete urea as a
nitrogenous waste. What is the advantage of this adaptation?
Small stagnant pools do not provide enough water to dilute ammonia, which is toxic.
An individual that has not eaten for a day would show high levels of which of the
following in their blood sample?
glucagon
What inhibits an action potential in a hair cell?
Outflow of K+ ions
The volume of sound corresponds to the _____ of the pressure wave.
amplitude
A patient sustains a serious injury to their hypothalamus. What problems might
this patient suffer from?
