PHGY 209 - Blood lectures. Exam
Questions With Correct Answers
How are nutrients, respiratory gases, hormones and waste carried through the blood to the body?
- answer✔Via capillaries
What is the acid balance for blood and why is it important to maintain? - answer✔7.3-7.45 --
critical that the blood ph stays in this range -- changing would change the structure of proteins.
What blood cells are involved in protection? - answer✔White Blood cells and plasma proteins.
If blood is appears homogenous in patients how can we study and distinguish its aspects? -
answer✔Treat it to stay in an aqueous state and then centrifuge it which will cause it to
distribute into densities.
How much of the body mass does blood account for? - answer✔7 %
How is the composition of Plasma similar to that of the ISF - answer✔both contain 90% water,
both have similar ions -- sodium and chloride mainly. Can also find nutrients, respiratory gases,
and waste in small portion -- constantly being transferred and exchanged.
How does the composition of plasma and the isf differ? - answer✔Plasma contains large
amount of proteins
What is electrophoresis? - answer✔the movement of charged particles in a fluid or gel under
the influence of an electric field. -- fractionation
If the plasma is applied at the negative electrode where will the plasma proteins move and why?
- answer✔Proteins will have an excess of negative charges so all proteins in plasma will run
towards the positive end.
What dictates how fast the proteins move? - answer✔- the number of charges - more negative
charges the faster it will go to the cathode, and the molecular weight - the heavier the slower.
Which plasma protein moves the fastest on an electrophoresis ? - answer✔Albumin
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