Question

Are channel proteins always open to both sides of the cell membrane?

Are channel proteins always open to both sides of the cell membrane?

Science   Biology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Channel proteins present on the membrane assists in transport of hydrophilic molecules across the phospholipid bilayer of the cell membrane. These are of two types

  1. Gated Channel
  2. Non-gated Channel

Non-gated channel remains always open on both sides of the membrane and is frequently found in organelle membrane than on the cell membrane while, gated channel remains shut down and its opening and closure is regulated by the presence of ligands (ligand gated channel) or voltage across the membrane (voltage gated ion channels)

Answer: Non-gated channel proteins remains always open to both sides of the membrane

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Passive-Transport Diffusion: Channel proteins which are always open for Na+ allow Na+ to move _________. Na+...
Passive-Transport Diffusion: Channel proteins which are always open for Na+ allow Na+ to move _________. Na+ is moving ____ its concentration gradient. A. Out of the cell; down B. Out of the cell; up C. Into the cell; up D. Into the cell; down
Consider a hypothetical cell whose plasma membrane is impermeant to everything. The membrane is studded with...
Consider a hypothetical cell whose plasma membrane is impermeant to everything. The membrane is studded with channel proteins for Ca2+, but these channels are initially closed. The concentration of Ca2+ outside the cell is 100 mM and the concentration of Ca2+ inside the cell is 1 mM. Initally, the membrane potential is 0 mV. a) In response to a signal molecule, all of the Ca2+ channel proteins suddenly become open. In which direction is there a net flow of Ca2+?...
An ion channel is a cell membrane channel that is selectively permeable to specific ions, such...
An ion channel is a cell membrane channel that is selectively permeable to specific ions, such as calcium, potassium, and sodium. There are different types of ion channels such as a potassium leak channel, which creates a negative charge inside of the cell, but can an ion channel be gated since it selects certain ions? And if yes, then how and what ways can it be gated?
1. There are three major types of membrane proteins that facilitate movement of molecules into and...
1. There are three major types of membrane proteins that facilitate movement of molecules into and out of cells: channel proteins, carrier proteins and protein pumps. Which of the three classes require energy to perform their function? A. Protein pumps require energy to function B. Channel proteins and carrier proteins require energy to function C. None of them require energy to function D. They all use energy to function 2. For a newly synthesized protein destined for secretion for the...
How do mutuated proteins and normal proteins differ when the adhere to the cell membrane?
How do mutuated proteins and normal proteins differ when the adhere to the cell membrane?
Which is FALSE about the ER translocation of proteins? Both membrane proteins and soluble proteins can...
Which is FALSE about the ER translocation of proteins? Both membrane proteins and soluble proteins can be transported into the ER. Only the correctly folded can be translocated into the ER ER signal sequence is required to transport proteins into the ER Signal recognition particle on the ER membrane recognizes the ER signal sequence.
Cell A has 5 glucose carrier proteins. Cell B contains 3 glucose carrier proteins and 3...
Cell A has 5 glucose carrier proteins. Cell B contains 3 glucose carrier proteins and 3 Na+ channel proteins. Both cells are submerged in 3 molar glucose solution. Which cell will be able to transport glucose faster? why?
Which of the following is a function of proteins? main component of the cell membrane digest...
Which of the following is a function of proteins? main component of the cell membrane digest cell waste genetic material quick energy enzymes
You are told that a cell contains DNA, ribosomes, proteins, and an outer cell membrane. You...
You are told that a cell contains DNA, ribosomes, proteins, and an outer cell membrane. You don’t know what else is present in the cell. From which organism(s) could this cell come? A eukaryote, but not a prokaryote A plant, but not an animal Any kind of organism A prokaryote, but not a eukaryote An animal, but not a plant
Which of the following statements is true for phospholipids and sphingolipids? Both are membrane proteins Both...
Which of the following statements is true for phospholipids and sphingolipids? Both are membrane proteins Both contain a glycerol backbone Both are glycosylated Both have an amphiphatic organization Both use serine as a head group
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT