5 Questions
Which transport mechanism requires the use of energy?
Primary active transport
What is the collective term for glycolipids and glycoproteins?
Glycocalyx
Who proposed the 'fluid mosaic model' of the cell membrane?
S.J. Singer and Garth L. Nicolson
In which type of transport do substances move from an area of higher concentration to an area of lower concentration?
Facilitated diffusion
What is a concentration gradient?
A physical space with a range of concentrations of a single substance
Study Notes
Transport Mechanisms
- Active transport requires the use of energy.
- Passive transport does not require energy.
Cell Membrane Components
- Glycoconjugates is the collective term for glycolipids and glycoproteins.
Cell Membrane Structure
- The 'fluid mosaic model' of the cell membrane was proposed by Singer and Nicolson.
Transport Types
- Passive transport involves substances moving from an area of higher concentration to an area of lower concentration.
Concentration Gradient
- A concentration gradient is the difference in concentration of a substance from one area to another.
Test your knowledge of cell transport mechanisms, including diffusion, osmosis, facilitated transport, and active transport. Explore the paucimolecular model by Hugh Davson and James Danielli, and the fluid mosaic model by S.J. Singer and Garth L. Nicolson. Learn about lipids, including phospholipids and cholesterol, as well as proteins and carbohydrates attached to glycoproteins and glycolipids.
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