BISC207 Lecture Notes - Lecture 9: Active Transport, Cystic Fibrosis, Transmembrane Protein

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redcoyote43

27 Sep 2018

School

University of Delaware

Department

Biological Sciences

Course

BISC207

Professor

Olabisi Oyenike

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Caused by drinking too much water or sports drinks, which dilutes blood salt levels below the normal range. Any sudden drop in blood salt levels, from drinking more than the body can excrete, causing all cells in the body to swell. Molecule moves through a membrane protein channel or carrier. Change shape to transport things across membrane. Residues facing inside the pore are hydrophilic. Each channel protein permits only a particular type of ion or small molecule to pass through it. Aquaporins: permit water to cross the plasma membrane ( water-pores ) Movement of a solute across a membrane against its gradient from a region of low concentration to higher concentration. Energetically unfavorable and requires the input of energy. Occurs when individuals inherit incorrect genetic instructions from both parents for the production of one type of transmembrane protein. Does not move chloride ions, causing sticky mucus to build up on the outside of the cell.

Related Questions

Match each term

1.facilitated diffusion 2. Hypertonic solution
3. Hypotonic solution
4. Active Transport
5. Secondary acive transport
6. Simple Diffusion

A.	The transport of a nonpolar molar across a biological membrane from the compartment with a high concentration to one with low concentration.
B.	A process that utilizes energy to move compounds against a concentration gradient, i.e., from the compartment with lower concentration to one with a higher concentration.
C.	a solution that would cause blood cells to swell and burst
D.	a solution that would cause red blood cells to shrink
E.	The transport of a hydrophilic molecule across a biological membrane using an ion gradient created by an electrogenic pump.
F.	A process by which compounds are transported from a region of high concentration to one of lower concentration using membrane proteins as transporters.

A hypertonic solution has a higher level of solutes so the water moves out of the cells to the surroundings

A hypotonic solution has a higher level of solutes so the water moves out of the cells to the surroundings

The salt and water solution in the potato is a hypotonic solution

Osmosis is the movement of large molecules across a membrane which require embedded proteins

The plain water in this experiment is the solvent and the salt is the solute.

Passive transport requires no energy and the molecules move with the concentration gradient or from high concentration to low concentration

Active transport required no energy and the molecules move with the concentration gradient or from high concentration to low concentration.

The water on the inside of the potato with the salt molecules is an isotonic solution the same as the solution on the outside of the potato.

Water will not move by simple diffusion (osmosis) into or out of cells it requires energy or protein transporters

The solution of salt water in the potato has a lower concentration of water molecules so the water on the outside should move into the cells

BISC207 Lecture Notes - Lecture 9: Active Transport, Cystic Fibrosis, Transmembrane Protein

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