EXERCISES, LESSON 7
REQUIREMENT. The following exercises are to be answered by completing the
incomplete statements.
After you have completed all the exercises, turn to "Solutions to Exercises" at the end of
the lesson, and check your answers.
1.
The processes of respiration and breathing serve to provide
n to the body
cells. This oxygen is used in the process of m
o
, which releases the
energy trapped in g
e molecules.
Also, the gas
n
e is removed along with other unwanted gases.
2.
In general, respiration is the exchange of
s. The two kinds of respiration in
the human body are e
l and i
l respiration. In external respiration, gases
are exchanged between the
d and the surrounding
. In internal respiration,
gases are exchanged between the
d and the individual
s of the body.
3.
Breathing is the process by which
r is moved into and out of the
s.
The two types of breathing in humans are
l breathing and d
c breathing.
In costal breathing, the
cage is used. In diaphragmatic breathing, there is
reciprocal interaction between the
m and the abdominal
l.
When the air flows inward, we call it inh
or ins
. When the air
flows outward, we call it exh
or exp
.
4.
In respiration and breathing, the movement of air and various gases is due to
d
s in their relative p
s from one space to another. If the pressure or
concentration of a substance is greater in one space than another, then there is a
p
eg
t for that substance. As a result, the substance will move from the
area of
er pressure to the area of
er pressure.
Boyle's Law: If we increase the volume of a closed container, the pressure inside
will (increase) (decrease). Likewise, if we decrease the volume, the pressure inside will
(increase) (decrease).
Pascal's Law: A pressure applied to the fluid filling a closed container will
produce an
l pressure at each and every point on the inner surface.
More gases can be exchanged or treated as the surface area (increases)
(decreases).
MD0007
7-22
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