During digestion, how does the absorption of fats different from
the absorption of carbohydrates?
Carbohydrates must be broken down by digestive enzymes before
they can be absorbed but fats do not require digestive enzymes.
Carbohydrates require emulsification before they can be digested
and absorbed but fats do not.
Most of the fat that is absorbed by the body enters the
lymphatic system first whereas carbohydrates are absorbed directly
into the blood.
Freshwater and marine bony fish face unique problems in
regulating osmoregulation in regards to salt and water. They
regulate salt concentration via?
Excretion or uptake of salt via the liver
Excretion or uptake of salt through their body surfaces
Excretion or uptake of salt through their gills
Why does air enter your lungs when you take a normal breath?
the rib muscles and diaphragm contract, increasing the lung
volume.
a positive respiratory pressure is created when the diaphragm
relaxes.
pulmonary muscles contract and pull on the outer surface of the
lungs.
Rapid reproduction of epithelial cells as well as secretion of a
thick mucous layer in the stomach help to protect the stomach
against _________.
Colonies of H. pylori.
The high level of secretion by chief cells
Secretion of HCl and protein-digesting enzymes
There are two systems the body uses to keep your body in
homeostatic balance, positive and negative feedback. Negative
feedback is different from positive feedback because
negative feedback helps the organism whereas positive feedback
is harmful.
the control centers in negative feedback loop send signals to
counteract the stimulus where as the control centers in a positive
feedback loop sends signals that amplify the response over
time.
negative feedback systems lack control centers that are present
in positive feedback systems. As a result, positive
feedback