What are some characteristics of a respiratory surface that are important for gas exchange?
What will be an ideal response?
1 . Thin- A typical respiratory surface is no more than one or two cell layers thick. The respiratory surface must be thin because gases diffuse quickly only over very short distances.
2 . Moist- The respiratory surface must be moist because a gas can only diffuse across a living cell 's lipid bilayer when it is in solution.
3 . Large surface area- The larger the area of a respiratory surface, the more molecules can cross it in any given time. This is why the area of a respiratory surface is often surprisingly large relative to the animal 's body size.
You might also like to view...
The enzymes needed for the breakdown of all categories of ingested food are produced by which organ.
A) liver B) large intestine C) stomach D) pancreas
The resting potential of an unstimulated neuron is between ________ millivolts (mV)
A) ?40 and ?90 B) ?4 and ?9 C) 40 and 90 D) 4 and 9 E) ?400 and ?900
Regarding the growth curve, a bacteria is more resistant to most antibiotics during the ___________ phase
a. stationary b. lag c. exponential (log) d. stationary and log
What events generally take place during promoter activation?
What will be an ideal response?