Intracellular Fluids and the Fluids Surrounding Cells in Multicellular Organisms

question 47

Essay

Intracellular fluids and the fluids surrounding cells in multicellular organisms are full of dissolved substances,including nucleotides,amino acids,proteins and ions.The total concentration of substances determines the colligative properties of a fluid.Osmosis is one of several such colligative properties.
a.Give the definition of osmosis.
b.Eukaryotic cells are aqueous solutions surrounded by semipermeable membranes.Consequently,incubation of a cell in a solution of lower osmotic pressure would cause the cell to swell up and burst.Discuss two solutions that have developed during evolution to solve this problem.

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Definitions:

Reciprocal

Pertaining to a mutual relationship or action where two or more parties give and receive something in turn.

Big Five Traits

The Big Five Traits are a model describing five major dimensions of human personality: openness, conscientiousness, extraversion, agreeableness, and neuroticism.

Emotional Stability

a personality trait signifying a person's ability to remain calm and composed, especially in stressful situations.

Reciprocal Determinism

A concept in psychology introduced by Albert Bandura that suggests individual behavior, environmental factors, and personal cognitive factors mutually influence each other.