Ivy Tech APHY 101 Final Exam

Ivy Tech APHY 101 Final Examm m m m m




1. What is the difference between anatomy and physiology?
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mANS Anatomy is the study of the structure of body parts, whereas physiology is th
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e study of the functionof body parts
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2. What are the levels of organization?
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m ANS subatomic particles, atom,macromolecule, organelle, cell, tissu
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e, organ, organ system, organis
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1m/m17

,3. What are the requirements of life?
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m ANS Water, food, oxygen, heat, pressure
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4. What are the characteristics of life?
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m ANS Movement (internal or gross); Respon-
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m siveness (reaction to internal or external change); Growth (increase in size without
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change in shape); Reproduction (new organisms or new cells); Respiration (use of
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oxygen; removal of CO2); Digestion (breakdown of food); Absorption (movement of
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substances through membranes and into fluids); Circulation (movement within body
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fluids); Assimilation (changing nutrients into chemically different forms); Excretion (
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removal of metabolic wastes)
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5. Define homeostasis m




m ANS Body's maintenance of a stable environment
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6. What is a homeostatic mechanism?
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m ANS the body maintains homeostasis througha number of self-
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regulating control systems; examples are regulating body temper-
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2m/m17

,ature and pressure sensitive receptors to regulate body pressure
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7. Define matter m




m ANS Anything that takes up space and has mass (weight). It is com-
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posed of elements.
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8. Define element m




m ANS fundamental substance composed of chemically identical atoms
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9. Define atoms m




m ANS smallest particle of an element; basic unit of matter
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10. What is the structure of an atom?
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m ANS An atom consists of a nucleus containingprotons and neutrons, with electron
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s inm




orbit around the nucleus.
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11. Atomic nucleus m




m ANS the nucleus contains protons and neutrons
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3m/m17

, 12. Proton

m ANS subatomic particle that has a positive charge
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13. Neutron

m ANS subatomic particle that has no charge
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14. Electron

m ANS subatomic particle that has a negative charge
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15. Atomic number m




m ANS number or protons in nucleus
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4m/m17