AY Honors/Blood and the Body's Defenses/Answer Key
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Revision as of 06:05, 17 December 2005 by Jomegat (talk | contribs) (→What does it mean to be a blood donor? If possible, know your blood type. What types of blood can be donated to you? Which blood types cannot be donated to you? Why?)
Have the Microscopic Life honor.
Name two major constituents of blood. What is the percentage of each in normal blood?
Be able to draw pictures of and name the 7 types of blood cells and indicate what each type does.
Observe some preserved human blood under a microscope. Count 100 white blood cells and draw a graph showing the number of each of the five types of white blood cells you found. Which type is most common? Which type is least common?
Do at least one of the following and report on what you observed.
Observe blood being drawn from someone's arm by a medical professional.
With the help of an experienced person, observe blood flowing through some capillaries (either on video tape or in a living organism such as a hamster cheek-pouch, frog skin, or goldfish tail, using a microscope).
Visit a medical lab where blood tests are performed.
Visit a blood bank.
What two gasses are transported by the red blood cells? Explain why blood appears blue/green in your veins, but if you cut yourself, the blood that comes out is bright red. Explain why a lack of iron in your diet might make you have yellowish-colored blood.
Explain how blood clots when you are injured. How does typical "First Aid" help in the process?
What does it mean to be a blood donor? If possible, know your blood type. What types of blood can be donated to you? Which blood types cannot be donated to you? Why?
Recipient Blood Type | Donor must be | |||||||
---|---|---|---|---|---|---|---|---|
AB+ | Any blood type | |||||||
AB- | O- | A- | B- | AB- | ||||
A+ | O- | O+ | A- | A+ | ||||
A- | O- | A- | ||||||
B+ | O- | O+ | B- | B+ | ||||
B- | O- | B- | ||||||
O+ | O- | O+ | ||||||
O- | O- |