ASU BIO 100 EXAM 3 UPDATED
ACTUAL Exam Questions and CORRECT
Answers
Explain the functions of each system of the body: Digestive - CORRECT ANSWER -
Mechanical and chemical breakdown/digestion of food. Absorption of nutrients. Undigested
waste product that is eliminated.
Explain the functions of each system of the body: Cardiovascular (respiratory and circulatory) -
CORRECT ANSWER - Transportation (blood delivers oxygen and nutrients), regulation
of body temperature, and immunity
Explain the functions of each system of the body: Immune - CORRECT ANSWER -
Battle infection, maintain homeostasis by eliminating damaged cells, protects the body against
foreign organisms.
Explain the functions of each system of the body: Skeletal - CORRECT ANSWER -
support, movement, storage of minerals (bone marrow) blood cell formation
Explain the functions of each system of the body: muscular - CORRECT ANSWER -
movement, maintenance of body posture, production of heat, contraction of the heart, blood
pressure maintenance, intestinal movement (elimination of feces)
Explain the functions of each system of the body: Endocrine - CORRECT ANSWER -
Communication, integration, and control (hormonally)
Explain the functions of each system of the body: Reproductive - CORRECT ANSWER -
ensures survival of the human race
Explain the functions of each system of the body: Nervous - CORRECT ANSWER -
Communication, integration, control, recognition of sensory stimuli (CNS & PNS)
, Compare and contrast how positive and negative feedback mechanisms are used to maintain
homeostasis. Use these concepts to describe: The maintenance of blood glucose levels: -
CORRECT ANSWER - The control of blood sugar (glucose) by insulin is another good
example of a negative feedback mechanism. When blood sugar rises, receptors in the body sense
a change. In turn, the control center (pancreas) secretes insulin into the blood effectively
lowering blood sugar levels. Once blood sugar levels reach homeostasis, the pancreas stops
releasing insulin.
Compare and contrast how positive and negative feedback mechanisms are used to maintain
homeostasis. Use these concepts to describe: The release of platelets to form blood clots: -
CORRECT ANSWER - once a vessel is damaged, platelets start to cling to the injured site
and release chemicals that attract more platelets. The platelets continue to pile up and release
chemicals until a clot is formed.
What does it mean if an organism is an ectotherm? - CORRECT ANSWER - depend
mainly on external heat sources - their body temperature changes with the temperature of the
environment (reptiles, snakes, lizards)
What does it mean if an organism is an Endotherm? - CORRECT ANSWER - generate
most of the heat they need internally (mammals/humans/dogs)
Herbivorous mammals tend to have extremely long digestive systems, especially the intestines;
omnivores have intermediate length intestines; and carnivores have extremely short intestines.
What might be a logical explanation for this pattern? - CORRECT ANSWER - Plants are
hard to break down and need more time to get nutrients.
Why do strict vegetarians (vegans) have to be more careful of their choices of food than do
vegetarians that also eat cheese, eggs, and dairy products? - CORRECT ANSWER -
Because they aren't getting the vitamins and amino acids the body requires to function properly
How do vaccines work? - CORRECT ANSWER - The body will produce antibodies
against the vaccine so when you have the real thing your body will be prepared. You may not
even get sick.
ACTUAL Exam Questions and CORRECT
Answers
Explain the functions of each system of the body: Digestive - CORRECT ANSWER -
Mechanical and chemical breakdown/digestion of food. Absorption of nutrients. Undigested
waste product that is eliminated.
Explain the functions of each system of the body: Cardiovascular (respiratory and circulatory) -
CORRECT ANSWER - Transportation (blood delivers oxygen and nutrients), regulation
of body temperature, and immunity
Explain the functions of each system of the body: Immune - CORRECT ANSWER -
Battle infection, maintain homeostasis by eliminating damaged cells, protects the body against
foreign organisms.
Explain the functions of each system of the body: Skeletal - CORRECT ANSWER -
support, movement, storage of minerals (bone marrow) blood cell formation
Explain the functions of each system of the body: muscular - CORRECT ANSWER -
movement, maintenance of body posture, production of heat, contraction of the heart, blood
pressure maintenance, intestinal movement (elimination of feces)
Explain the functions of each system of the body: Endocrine - CORRECT ANSWER -
Communication, integration, and control (hormonally)
Explain the functions of each system of the body: Reproductive - CORRECT ANSWER -
ensures survival of the human race
Explain the functions of each system of the body: Nervous - CORRECT ANSWER -
Communication, integration, control, recognition of sensory stimuli (CNS & PNS)
, Compare and contrast how positive and negative feedback mechanisms are used to maintain
homeostasis. Use these concepts to describe: The maintenance of blood glucose levels: -
CORRECT ANSWER - The control of blood sugar (glucose) by insulin is another good
example of a negative feedback mechanism. When blood sugar rises, receptors in the body sense
a change. In turn, the control center (pancreas) secretes insulin into the blood effectively
lowering blood sugar levels. Once blood sugar levels reach homeostasis, the pancreas stops
releasing insulin.
Compare and contrast how positive and negative feedback mechanisms are used to maintain
homeostasis. Use these concepts to describe: The release of platelets to form blood clots: -
CORRECT ANSWER - once a vessel is damaged, platelets start to cling to the injured site
and release chemicals that attract more platelets. The platelets continue to pile up and release
chemicals until a clot is formed.
What does it mean if an organism is an ectotherm? - CORRECT ANSWER - depend
mainly on external heat sources - their body temperature changes with the temperature of the
environment (reptiles, snakes, lizards)
What does it mean if an organism is an Endotherm? - CORRECT ANSWER - generate
most of the heat they need internally (mammals/humans/dogs)
Herbivorous mammals tend to have extremely long digestive systems, especially the intestines;
omnivores have intermediate length intestines; and carnivores have extremely short intestines.
What might be a logical explanation for this pattern? - CORRECT ANSWER - Plants are
hard to break down and need more time to get nutrients.
Why do strict vegetarians (vegans) have to be more careful of their choices of food than do
vegetarians that also eat cheese, eggs, and dairy products? - CORRECT ANSWER -
Because they aren't getting the vitamins and amino acids the body requires to function properly
How do vaccines work? - CORRECT ANSWER - The body will produce antibodies
against the vaccine so when you have the real thing your body will be prepared. You may not
even get sick.
