3020 Lecture 3
Amber Stokes・2 minutes read
Passive transport involves diffusion, where molecules move from high to low concentration without energy, affected by factors like surface area and temperature. Active transport requires energy and moves substances from low to high concentration, facilitated by proteins.
Insights
- Passive transport involves the movement of molecules or ions from areas of high concentration to low concentration without requiring energy, with factors like surface area, temperature, concentration gradient, and distance influencing the rate of diffusion.
- Cells are fundamental units of living organisms, forming tissues with similar functions and structures, which then combine to create organs that work together in organ systems like the circulatory system, where various components collaborate to transport blood, nutrients, and waste throughout the body.
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Recent questions
What is passive transport?
Movement without energy from high to low concentration.
How does temperature affect diffusion?
Higher temperature increases molecular movement rate.
What are the components of the circulatory system?
Heart, arteries, capillaries, veins transport blood throughout body.
What is connective tissue?
Tissue with widely spaced cells and extracellular matrix.
What is bioenergetics?
Study of energy conversion following thermodynamics laws.
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