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Bio 127 - Exam 1 Study Guide Questions And Answers Latest Update $14.99   Add to cart

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Bio 127 - Exam 1 Study Guide Questions And Answers Latest Update

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Bio 127 - Exam 1 Study Guide Questions And Answers Latest Update

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  • October 30, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
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Solution 2024/2025
Pepper

Bio 127 - Exam 1 Study Guide Questions And
Answers Latest Update

Prions

infectious protein particles

Vectors

Something that introduces an infection into your body (ex. tick)

Types of Diseases

Degenerative, Nutritional, Metabolic and Immune

Degenerative Disease

- involves tissues breaking down
- age can cause this disease, or an infection can cause this

Nutritional Disease

- not enough or too much of something
- hemochromotosis (too much iron) -> causes degenerative diseases

Metabolic Disease

- Diabetes

Immune Disorders

- Autoimmune disorders
- Immunodeficiency disease
- Allergies

Neoplasms

cancers, tumors

Healthy people share certain bodily constants

, Solution 2024/2025
Pepper
1) Not too hot or cold: a body temp of around 37 degree celsius.
2) Not too acidic; not too alkaline in blood pH of near 7.4.
3) A blood glucose concentration of about 100mg/mL
4) A blood pressure of about 120/80 mm Hg
5) Respiration of 12-20 breaths/min

Dynamic Equilibrium

Not all these things have to be constant however a healthy body will be able
to bring the body back if it deviates from those levels.

Negative Feedback

- when a change in one direction "feeds back" to the input to reverse the
direction of the change in the output (like a thermostat).
Need:
1) Detector -> body's temperature sensors
2) Effector -> blood vessels and sweat glands in skin

Homeostasis

the dynamic constancy of the internal environment despite constant
changes in the external environment.

Infections

Invasions of the body

Infection vs Infestation

Infection: is the invasion of microorganisms that causes a disease to the
host.
Infestation: is the invasion of insects and worms that causes a disease to
the host.

Bacteria vs Viral

- Bacteria are single-cell organisms that can live and reproduce freely. They
have genetic material to pass on their genes.
- Viral can only reproduce inside a living cell (not their own).

Virus

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