what is the Role of cholesterol in membrane fluidity?

Q: What do diffusion and osmosis have in common? How are they different from active transport? In the…

A: Passive transport is the transport across the cell membrane in which there is no requirement of…

Q: Distinguish between integral and peripheral membrane proteins.

A: Introduction: Proteins are major biomolecules that consist of long chains of amino acids. The…

Q: Which statements are consistent with the known facts about membrane transport? (a) Active transport…

A: The internal composition of the cell  is maintained because the plasma is maintained because the…

Q: What is the function of Integral membrane proteins?

A: Introduction:- Integral membrane proteins are found in the bilayer membranes that surround cells and…

Q: How are transmembrane potentials maintained in a leaky membrane?

A: transmembrane potentials of a membrane is maintained by the concentrate of sodium and potassium ion…

Q: Distinguish between simple diffusion (SD), facilitated di

A: Passive transport occurs along the concentration gradient and without the use of metabolic energy.…

Q: Where are the proteins located in the cell membrane? How do they affect the semi-permeability and…

A: The plasma cell membrane is barrier between extra cellular environment and the interior cytoplasm.…

Q: What is a mediated protein transporter?

A: Mediated transport refers to transport interceded by a transport protein embedded in the membrane.…

Q: What is the result of opening a membrane ion channel?

A: Ion channels are the proteins in the membrane of all living cells that provide a passage to the…

Q: What is the sequence of events in receptor-mediated endocytosis?

A: Endocytosis is another form of bulk transport process that takes bigger molecules from the outside…

Q: What are integral membrane proteins? Under how many types is it examined? Briefly explain

A: For the survival of an organism, the membrane proteins, which relays signals between the internal…

Q: Which of the following would be expected to decrease the fluidity or permeability of a membrane?…

A: The cell membrane is throught to be a bikayer of lipids . Theyvhave a fluid like struture . They are…

Q: Why are water soluble substances unable to freely cross the lipid bilayer of the plasma membrane?…

A: The plasma membrane is the cell membrane that is present in all kinds of cells. It is composed of a…

Q: c)NaCl? My reasoning behind this is because molecules under 100 Da can use simple diffusion, while…

A: Diffusion is the passage of molecules from high concentration towards low concentration.  In a cell…

Q: Why is glucose considered a non-penetrating solute in an actual living cell?

A: Any solute that cannot pass through a membrane is a non-penetrating solute. NaCl and Glucose are…

Q: What do membrane junctions provide?

A: Cell junctions can be defined as the class of cellular structures that consist of multiprotein…

Q: Describe the function of plasma membrane G proteins

A: G Protein-Coupled Receptors (GPCR) is one of the largest known class of membrane protein receptors…

Q: For each type of membrane transport, know the following: – Is a transporter protein required? If so,…

A: The plasma membrane is the selective barrier that separates and protects the inner cellular contents…

Q: Explain the properties of membrane fluidity and its dependence upon lipid composition.

A: Introduction: Plasma membrane acts as the selective barrier that allows certain substances to move…

Q: In general, what is the relationship between membrane fluidity and membrane permeability?

A: The protective plasma membrane, sometimes also known as the cell membrane, has a bilayer of lipids,…

Q: What key ATPase is important for maintaining this positive (outside) and negative (inside)…

A: Transmembrane potential, also known as membrane potential, refers to the electrical potential…

Q: What factors affect the degree of membrane fluidity?

A: The phospholipid bilayer is composed of two layers of lipids. Each lipid contains a hydrophobic tail…

Q: Which are several subfamilies of plasma membrane G proteins?

A: The plasma membrane is also known as the cell membrane of the cell which is made up of lipids…

Q: Can Diffusion occur without Osmosis? Can Osmosis happen without Diffusion?

A: Active and passive transport and the two categories of molecular and cellular content transportation…