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Molecular Diffusion Quiz

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Questions and Answers

What factors affect the rate of molecular diffusion?

Temperature, size of the particles, and color of the fluid

Pressure, color of the fluid, and size of the particles

Temperature, pressure, and viscosity

Temperature, viscosity, and size of the particles (correct)

What does diffusion explain?

Equal distribution of molecules in a region

Net flux of molecules from a region of lower concentration to one of higher concentration

Net flux of molecules from a region of higher concentration to one of lower concentration (correct)

Formation of concentration gradients

What occurs when the concentrations are equal in molecular diffusion?

Molecules undergo chemical reactions

Molecules stop moving

Molecules continue to move, but the process is governed by self-diffusion (correct)

Molecules form a new phase

What is the result of diffusion?

Gradual mixing of material leading to uniform distribution of molecules Signup and view all the answers

How is molecular diffusion typically described mathematically?

Using Fick's laws of diffusion Signup and view all the answers

What is the term for the system of organs that includes the heart, blood vessels, and blood circulated throughout the body?

Circulatory system Signup and view all the answers

What are the two divisions of the circulatory system?

Systemic circulation and pulmonary circulation Signup and view all the answers

Which type of animals have an open circulatory system?

Arthropods Signup and view all the answers

What are the components of blood?

Plasma, red blood cells, white blood cells, and platelets Signup and view all the answers

What does the circulatory system transport around the body?

Oxygen, nutrients, and waste materials Signup and view all the answers