which of these would be a novel function for a cell membrane protein? course hero

What is the function of proteins in the plasma membrane?

 · All of the following are functions for a cell membrane protein except _ (blank) _. Select one: a. assemble polymers from amino acid monomers b. transfer molecules from cytoplasm to outside of cell c. help recognize foreign invaders d. bind specific signaling molecules e. assist cell-to-cell communication Feedback The correct answer is: assemble …

How do you study the structure of membrane proteins?

Protein transport. (1) A protein that spans the membrane may provide a hydrophilic channel across the membrane that is selective for a particular solute. (2) Some of these proteins hydrolyze ATP as an energy source to actively pump substances across the membrane. Enzymatic activity.

What are the main components of the plasma membrane?

Types of proteins associated with the membrane. -transmembrane proteins (span the cell membrane; ex: ion channels) -peripheral proteins (can be extracellular or cytoplasmic; associate with the bilayer through non-covalent interactions) -lipid-anchored proteins (GPI anchored) GPI (PI is specific type of lipid in the membrane)-anchored protein.

What is the structure of the membrane of red blood cells?

In plasma membrane, a protein helps in providing the support and shape to the cell. There are three types of proteins in plasma membrane, which includes: 1.Cell membrane receptor proteins- It helps in communication of a cell with their external environment with the help of hormones, neurotransmitters and other signaling molecules.

What is the membrane of a cell?

It is a thin semi permeable membrane layer, which surrounds the cytoplasm and other constituents of the cell. Click again to see term 👆. Tap again to see term 👆.

What is the plasma membrane?

1. The plasma membrane (cell membrane) is made of two layers of phospholipids. 2.The plasma membrane has many proteins embedded in it. 3.The plasma membrane regulates the entry and exit of the cell.

How to study the structure of a particular membrane protein?

To study the structure of a particular membrane protein, the target protein is usually removed from the membrane and separated from other membrane proteins. Shown here are three different proteins associated with the cell membrane. Treatment of this membrane with high salt would release which protein or proteins from the bilayer?

Which proteins form large, water-filled pores in mitochondrial and bacterial outer membranes?

Porin proteins—which form large, water-filled pores in mitochondrial and bacterial outer membranes—fold into β-barrel structures. The amino acids that face the outside of the barrel have what kind of side chains?

What is the function of fluorescent recovery after photobleaching?

Fluorescence recovery after photobleaching (FRAP) is used to monitor the movement of fluorescently labeled molecules within the plane of a cell membrane. The molecules labeled are often proteins, but can also be lipids.

What is the technique used to track the movement of a protein in a cell membrane?

The movement of an individual protein in a cell membrane can be followed using a technique called single-particle tracking . In the diagram of the red blood cell cortex shown in Figure 1, actin proteins would show which of the three types of movement in Figure 2?

What is a protein attached to the membrane?

A protein attached to the membrane by noncovalent interactions with other membrane proteins. In the α helices of transmembrane proteins, the hydrophobic side chains are facing: the outside of the membrane-spanning helix. Porin proteins—which form large, water-filled pores in mitochondrial and bacterial outer membranes—fold into β-barrel structures.

Which has more lipids, proteins or lipids?

There will be more lipids than proteins.

Do red blood cells have internal membranes?

Human red blood cells contain no internal membranes other than the nuclear membrane.