What would happen if the cell membrane was covalentlylinked rather than held together by relatively weak van derWaals forces?

Q: Why is the intermembrane space acidic?

A: The mitochondria are the organelle present in the cytoplasm but not in the nucleus. It is mainly…

Q: What is the difference between a cell membrane and a plasma membrane?

A: Plasma membrane and cell membrane are quite different from each other. Plasma membrane of a cell…

Q: Would cyanide poisoning increase the H+ concentration or decrease the H+ concentration in the…

A: In large doses, cyanide quickly binds with iron in cytochrome a3, preventing electron transport in…

Q: What two molecules make up cell membranes?

A: Cell membrane is the outermost part of the cell and is a major limiting agent which controls the…

Q: What would probably happen to the plasma membrane of a cell if it were composed of hydrophilic…

A: Plasma membrane marks the boundary of the cell thereby separating inside and outside of the cell.…

Q: What are the roles of the proteins in the plasma membrane of cells?

A: Membrane proteins are interrelated with biological membranes. They can be integral membrane protein…

Q: if something needed to enter the cell and couldn't go through the phospholipid bilayer, how else…

A: The cytoplasmic membrane is a good permeability barrier because it is semi-permeable and envelops…

Q: What, other than phospholipids, are found in the cell membrane?

A: The cell membrane is thin, elastic, flexible covering that holds the cellular contents. It is also…

Q: Which of the following are powered by Brownian Motion? Select all that apply. Question options:…

A:

Q: How does water move across a plasma membrane?

A: The biological membrane found in all living cells that separates the internal structure of the cell…

Q: What is Fick’s first law of diffusion applied to biological membranes?

A: The plasma membrane is semi-permeable membrane that surrounds a cell providing shape and structure…

Q: What molecules are responsible for the physical properties of a cell membrane?

A: The cell membrane, also known as the plasma membrane, is a biological membrane that covers all cells…

Q: What is meant by active transport across a cell membrane?

A: Cell membrane or plasma membrane is a thin, delicate, elastic and living boundary. The cell membrane…

Q: Suggest a reason for the difference in the composition between the two cell surface membrane?

A: The lipid bilayer determines the basic structure of biological membranes, proteins are responsible…

Q: If we swim in Dead Sea water, are our cell plasmolyzed ? Why?

A: Dead sea water is salty having more salt concentration and less solvent (water) concentration in the…

Q: Why is the cell membrane negatively charged?

A: The plasma membrane or cell membrane is the membrane found in all cells that separates the interior…

Q: Which process requires energy—passive or active transport? Why is energy sometimes required to move…

A: Passive Transport: Movement of a substance across a cell membrane with out the use of energy, from a…

Q: What happens in the phospholipid bilayer?

A: The cells are the basic structural, biological, and functional unit of all known living organisms.…

Q: What changes to the structure of a cell membrane will increase the cell’s resistance to mechanical…

A: The plasma membrane is a lipid layer that is selectively permeable. It remains in contact with a…

Q: How do water molecules move through hydrophobic cellmembranes?

A: The membrane is composed of lipid molecules such as phospholipids, sphingolipids and cholesterol.

Q: Describe the type of substance that will be able to anchor in the cell membrane? How does polarity…

A: Cell membrane or plasma membrane is the living outer boundary of cells. It separates cytoplasm from…

Q: Which of these statements is not true regarding the cell membrane?   Question 28 options:   The…

A: option C is not true about cell membrane.

Q: What part of this molecule will bind to free cations in cellular cytoplasm? Please indicate the…

A: Within the cell different macromolecules at present that includes DNA, RNA, proteins,…

Q: A mitochondrion is 2 um long. How many angstrom would it be?

A: "Mitochonria is the power House of the cell "

Q: What is the difference between smooth and rough endoplasmic reticulum?

A: The endoplasmic reticulum is found in eukaryotic cells that are responsible for the synthesis,…

Q: What can pass through the phospholipid bilayer?

A: Cells have an outer covering that is commonly known as the plasma membrane or cell membrane. This…

Q: Why is the Donnan membrane phenomenon important for the homeostasis of the cell

A: Every system has a tendency to attain stability. This system can be abiotic or biotic. To reach at…

Q: What is the difference between diffusion and facilitated diffusion?

A: Diffusion is a process by which particles move from higher concentrations to lower concentrations.…

Q: The cytoplasm is the material between what two?

A: The cell is the basic fundamental and structural unit of all living organisms. Inside all the cells,…

Q: List three mediator proteins that move phospholipid molecules from one side of a membrane to the…

A: Mediator proteins are the proteins that are required for the transport of molecules which cannot…

Q: How does the composition of the bilayer affect its properties?

A: The lipid bilayer (Phospholipid bilayer) is a thin polar membrane made of two layers of lipid…

Q: if the membrane composition of the golgi in a cell is incorrect, what could have happened?

A: If the composition of membrane in Golgi body is incorrect then the cell is similar to the cell with…

Q: Suppose that liver cells were placed into a bowl containing hypotonic solution. What would you…

A: A solution is a homogenous mixture that contains more than one component in it. The component that…

Q: Why do cells lack membrane transport proteins that are specific for the movement of Oxygen?

A: Membrane transport proteins can transport molecules across the cell’s semi-permeable membrane…

Q: What might happen to a cell if there are no steroids in its membrane?

A: Steroids in biological systems are substances that are produced for the smooth functioning of the…

Q: What is the pH of the intermembrane space?

A: The intermembrane space refers to the space present in between two or more membranes. It is the…

Q: What is the difference between passive diffusion and facilitated diffusion?

A: Facilitated diffusion is a form of passive diffusion of molecules across a cell. In passive…

Q: What constituents besides phospholipids are present in a cell membrane?

A: Introduction: The cell membrane or plasma membrane separates the cytoplasm from external…

Q: Why water cannot readily cross the plasma membrane?

A: Plasma membrane show fluid properties, i.e. Can show motion.

Q: Why do water and small, electrically charged molecules move easily through pores in the plasma…

A: Introduction  The membrane that divides the interior of the cell from the external environment is…

Q: What components of the plasma membrane might this molecule interact with?

A: Molecule is atorvastatin It is a  drug that specifically inhibits the enzyme HMG-CoA reductase and…

Q: What is a proton pump and what function does it have for a living cell?

A: Cell biology is considered as the study of cells, their structure, and their functions. The cells…

Q: How do we know that membrane phospholipids regularly intermingle and move laterally, but rarely flip…

A: The cell membrane is also known as a cytoplasmic membrane or plasma membrane or plasmalemma.…

Q: How do temperature and lipid composition affect the fluidity of the cell membrane?

A: Membrane fluidity refers to the viscosity of the lipid bilayer of the cell membrane. Viscosity can…

Q: What is a cell memrane

A: Cell membrane is the biological membrane.

Q: What is  phospholipid bilayer?

A: The cell membrane is thin, elastic, flexible covering that holds the cellular contents. It is also…

Q: If Prokaryotic cells do not have membrane-bound organelles, can Prokaryotic cells perform the same…

A: Prokaryotes are those organism which are without any membrane bound organelle. The genetic material…

Q: How to store membrane vesicles without losing activity of any constituents?

A: The main function of membrane vesicles is to store organelles and the small sacs that are comprised…

Q: how can you increase the rate of facilitated diffusion across the plasma membrane?

A: Rate of facilitated diffusion is defined as the speed at which molecules are moved across a membrane…

Q: What space inside the cell is topologically equivalent to the cytoplasm?

A: The semifluid substance of a cell that is exterior to the nuclear membrane and internal to the…

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.