4/17/2017 oz oo PM 87.6l 100 4/4/2017 10:29 AM Gradebook Print calculator Period

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4/17/2017 oz oo PM 87.6l 100 4/4/2017 10:29 AM Gradebook Print calculator Periodio Table Question 18 of 18 Sapling Learning sort the phrases based on whether they desoribe or give an example of fadlitated diffusion, active transport, or both. Note: If a single redX will appear indicating that one or more of the phrases are sorted incorrectly. Facilitated diffusion Active transport Both sodium ion glucose transport movement to area movement across transport out of cell into muscle cell of lower concen a membrane requires energy movement assisted proteins ® Give up & View Solution o Check Answer o Next o Previous

Explanation / Answer

Ans. #1. Facilitated diffusion: Glucose transport in muscle cells, movement to an area of lower concertation

#2. Active transport: Sodium transport out of cell, Requires energy.

#3. Both: Movement across a membrane, Movement assisted by proteins.

Facilitated diffusion is the spontaneous movement of a molecule across a membrane along the gradient through a protein. That is, whenever, there is a concentration gradient across the membrane. Facilitated diffusion occurs spontaneously through the transporter protein. No energy is required for the process.

Active transport mediates the transport of a solute against its concertation gradient on the expenditure of ATP.

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