PHYS 261 Week 1&2 Ch.1-3 questions with accurate solutions

PHYS 261 Week 1&2 Ch.1-3 questions with accurate
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solutions


Organization of Life (7) - ✔✔1. Atoms || || || || || ||




2. Molecules
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3.Cells

4. Tissues
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5. Organs
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6. Organ Systems
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7. Organisms
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Whole body is made up of how many molecules? - ✔✔4 molecules (2 biomolecules)
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What are the atoms that make up 90% of the body? (3) - ✔✔1. Carbon
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2. Hydrogen
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3. Oxygen
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How many biomolecules make up cells ? - ✔✔2
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What are the 4 main molecules? - ✔✔1. Lipids
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2. Carbs
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3. Proteins
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4. Nucleic Acids
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Telelogical Approach explains _________. - ✔✔"Why"
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, Mechanistic Approach explains ________. - ✔✔"How"
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Pathophysiology is the study of what? - ✔✔failure to compensate
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What is homeostasis? - ✔✔regulation of the body's internal environment.
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Response Loop (7) - ✔✔1. Stimulus
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2. Sensor
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3. Input signal
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4. Integrating center
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5. Output signal
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6. Target
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7. Response
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Negative feedback stabilizes what? - ✔✔variables
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Positive feedback reinforces what? - ✔✔stimulus
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Feedforward control anticipates what? - ✔✔changes
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Define Hypothesis - ✔✔a scientifically logical guess
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Define Theory - ✔✔a scientific fact
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What is crossover studies? - ✔✔each subject acts as both experimental subject and control
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