1.
During the human digestion process, digestion is
compartmentalized in various organs throughout the digestive
system. How does this system work?
Different digestive enzymes are active in specific pH windows
that occur in different organs.
Each digestive organ has its own complement of symbiotic
bacteria that assist in digestion.
Each digestive organ makes its own digestive enzymes, which only
work in that organ.
The compartmentalization is an evolutionary adaptation similar
to that seen in cows.
2.
A student identifies a compound that is composed of glycerol and
three fatty acids. If the student observes that this compound
becomes a solid at room temperature, what insight will the student
gain regarding the structure of this compound? The
compound
has a ring structure with at least one double bond
has a ring structure with no double bonds
is a fat that contains at least one double bond
is a fat that is saturated with hydrogen
3.
What human cardiovascular system adjustments would occur in a
person facing a fight-or-flight situation?
increased heart rate and blood pressure, decrease in blood flow
to muscles
increased heart rate and blood pressure, increase in blood flow
to muscles
decreased heart rate and blood pressure, decrease in blood flow
to muscles
decreased heart rate and blood pressure, increase in blood flow
to muscles