Taylor the cell and the pure water would be

Taylor
Jones

1/29/17

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Ms.
Hirzel

Lab
Report #1

Diffusion and Osmosis:

 

In the lab handout of Diffusion and
Osmosis, the objectives for the individual throughout the experiment were to
learn specific terms, such as: hypotonic, isotonic, and hypertonic. Understanding
these terms will help the individual know the meaning and the answers to the
questions. The background of the experiment is where you will stumble upon the
definitions of these useful terms. Molarity, M, is understood to be the concentration of a solution that
is expressed in terms of the solute concentration. In osmosis (water
molecules from regions of high concentration into regions of low water
concentration), the terms isosmotic, hyposmotic, and hyperosmotic derive from
the osmotically particles inside and outside a solution. Hyposmotic is a solution containing fewer
osmotically active particles. Isosmotic are solutions having the same
number of particles. Hyperosmotic
is when a solution would have twice the solute particlesG1 . For molecules, they are always in
constant motion from one location to another, the movement of matter down a
concentration gradient is called diffusion. For any solution that allows a cell
to retain its normal shape and volume is called isotonic. When a cell loses water and
shrinks in volume, the solution is now hypertonic. Lastly, a solution causing the cell is
swell in volume is called hypotonic.

There are three questions that are
asked that do not require input from the experiments. Number three of the
Osmometer Experiment asks, “Often when a person is ill they must be given
fluids intravenously (by injection directly into the blood vessel). Why must
the person never be given pure water intravenously?” With my understanding of
the information from the handout, they do this so their cells do not burst
because the environment would be hypotonic compared to the cell and the pure
water would be forced into the cell. Number three of the Iodine Diffusion
Experiment shows a diagram of hypotonic, isotonic, and hypertonic pictures and
asks to label each and to indicate whether the cell would: shrink, swell, or no
change. From left to right, the first picture shows a hypotonic cell and with
the information I have gathered I predict that the cell will swell. The picture
in the middle shows an isotonic cell, my prediction indicates that the cell
will have no particular change. The picture on the right is a hypertonic cell
and I indicate that the cell will shrink. Number five of the Iodine Diffusion
Experiment asks to “discuss specifically where simple diffusion may occur in
the human body?” With my understandings I believe that simple diffusion may
occur in the respiratory
system due to the exchange of O2 and CO2. G2 

 G1Doesn’t need twice the solute particles, just more

 G2Not just lungs, in capillaries as well

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