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BIOS 251 Final Questions and Correct Answers | Graded A+ | Latest Update 2026/2027 | A+ Pass!!

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BIOS 251 Final Questions and Correct Answers | Graded A+ | Latest Update 2026/2027 | A+ Pass!! Components of the homeostatic control loop : receptor, control center, effector Negative feedback : -works to oppose change -brings condition back to a set point Positive feedback : -works to enhance change -brings condition further away from a set point Osmosis : -concentration of solutes per liter -water moves from high concentration of water to low concentration of water Factors that influence diffusion across a cell membrane 2 | P a g e : -steepness of concentration gradient -temperature -mass of diffusing substance -surface area -diffusion distance Hypotonic solution : RBC undergoes hemolysis (swelling) Passive processes that move substances across the cell membrane : -Simple diffusion -Facilitated diffusion Tonicity : relates to how the solution influences the shape of body cells Hypertonic solution : RBC undergoes crenation (shrinking) 3 | P a g e Thank you for Purchasing this exam Study Guide. We provide high-quality academic materials to help students excel in exams. Our other Services include but not limited to: academic research, University & College assignments writing, essay writing, Online Classes, and research projects. Our services are reliable, affordable, and plagiarism-free. All the Best in your Exam. For more information; Contact us at: or 0R

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BIOS 251 Final Questions and Correct Answers
| Graded A+ | Latest Update 2026/2027 | A+

Pass!!

Components of the homeostatic control loop

🗸🗸🗸: receptor, control center, effector



Negative feedback

🗸🗸🗸: -works to oppose change

-brings condition back to a set point



Positive feedback

🗸🗸🗸: -works to enhance change

-brings condition further away from a set point




Osmosis

🗸🗸🗸: -concentration of solutes per liter

-water moves from high concentration of water to low concentration of water



Factors that influence diffusion across a cell membrane



1|Page

,🗸🗸🗸: -steepness of concentration gradient

-temperature

-mass of diffusing substance

-surface area

-diffusion distance




Hypotonic solution

🗸🗸🗸: RBC undergoes hemolysis (swelling)



Passive processes that move substances across the cell membrane

🗸🗸🗸: -Simple diffusion

-Facilitated diffusion




Tonicity

🗸🗸🗸: relates to how the solution influences the shape of body cells



Hypertonic solution

🗸🗸🗸: RBC undergoes crenation (shrinking)




2|Page

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  • bios 251
  • bios 251 final questions and correct answers
  • components of the homeostatic control loop
  • osmosis processes that move substances across the
  • types of active transport in vesicles
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