Biology 253 Lab Practical 1 Exam Questions With Verified
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Course
Bio 253
Institution
Bio 253
Biology 253 Lab Practical 1 Exam Questions
With Verified
Erythrocytes - answer(RBC) carry O2 and nutrients to the tissue and CO2 away
Leukocytes - answerA blood cell that functions in fighting infections; also called a white
blood cell.
Neutrophils - answerA type of white blood cell that engul...
Biology 253 Lab Practical 1 Exam Questions
With Verified
Erythrocytes - answer✔✔(RBC) carry O2 and nutrients to the tissue and CO2 away
Leukocytes - answer✔✔A blood cell that functions in fighting infections; also called a white
blood cell.
Neutrophils - answer✔✔A type of white blood cell that engulfs invading microbes and
contributes to the nonspecific defenses of the body against disease.
Eosinophils - answer✔✔secrete toxins onto larger microorganisms too big to be destroyed by
macrophages (parasitic worm, for example)
Basophils - answer✔✔*Release histamines, heparin and other inflammatory mediators that assist
in allergic reactions.
Lymphocytes - answer✔✔Responsible for specific immunity. Recognize specific antigens on
foreign bodies
These act against such foreign particles as virus & bacteria.
Monocytes - answer✔✔Actively phagocytic cells; crucial agianst viruses, intracellular bacterial
parasites, and chronic infections. Develop into macrophages.
Platelets - answer✔✔A very small blood cell derived from the fragmented cytoplasm of
megakaryocytes in the bone marrow. Platelets participate in coagulation, wound healing, and
inflammation.
Artery - answer✔✔A blood vessel that carries blood away from the heart.
Vein - answer✔✔A blood vessel that carries blood back to the heart.
Tunica interna - answer✔✔The inner layer of arteries and veins comprised of simple squamous
endothelium overlying a basment membrane.
Tunica media - answer✔✔The middle, usually muscular, coat of an artery. Provides stability in
response to pressure.
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