a) What are the forces that maintain structural integrity of biological membranes?

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: In osmosis, water moves from a ---------------- solution to a --------------------- solution

A: To find: The movement of water in osmosis

Q: What is Adhesion ?

A: The cells are the primary unit of life. The cells form the tissues which collectively form an organ.…

Q: Define cell membrane ?

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

Q: In protein synthesis, modification and transport, what will be the correct order of organelles…

A: Protein synthesis is a process by which protein molecules are made, used in cell structure and…

Q: In protein synthesis, modification and transport, what will be the correct order of organelles…

A: Modification and transport step is very important in the protein synthesis. For this there are many…

Q: How does transport through membranes take place?

A: Membranes of the cell are composed of a bilipid layer which is composed of the phospholipid layer,…

Q: What is the difference between cohesion and adhesion?

A: Cohesion and adhesion are the terms that describe the state of attraction of molecules to cling…

Q: What types of substances diffuse freely across a biological membrane?

A: Introduction: The biological membrane provides structure to the cell and performs various functions…

Q: What are the basic constituents of the cell membrane?

A: Cell, in science, the essential film bound unit that contains the basic molecules of everyday…

Q: Of the following organelles associated with the endomembrane system, which group is primarily…

A: Endomembrane consists of organelles such as golgi apparatus, Endoplasmic reticulum and lysosome.

Q: Define bilayer

A: The lipid bilayer is a thin polar membrane made up of two layers of lipid molecules. Biological…

Q: Can water, carbon dioxide, oxygen and calcium ion can move freely across the plasma membrane?

A: The plasma membrane or cell membrane is primarily composed of a lipid bilayer along with protein and…

Q: If a cell is in interstitial fluid that is hypertonic to its cytosol, how does this affect the cell?…

A: Introduction Salinity refers to the concentration of salt. it plays the major role in the cell…

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: Define and provide an example for each of the following: simple diffusion, facilitated diffusion,…

A: As a result of the facilitated diffusion, polar and charged molecules like carbohydrates, amino…

Q: Which one ( phagocytosis, pinocytosis,receptor-mediated endocytosis) is the opposite of exocytosis?

A: Cytosis involves transport mechanism that aids in transport of various large quantities of…

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: What features of membranes make them selectively permeable?

A: Cell is a structural and functional unit of living organisms. Several cells joined together to form…

Q: What is Endoplasmic reticulum (ER) ?

A: An organelle is a subcellular part/structure that, like an organ in the body, has one or more…

Q: How does the arrangement of phospholipid molecules in the cell membrane give the membrane selective…

A: The cell membrane is selectively permeable

Q: What are the forces that maintain structural integrity of biological membranes and explain how each…

A: The plasma membrane, also called as the cell membrane is the membrane found in all cells, which…

Q: Why do most molecules require the assistance of proteins to cross the cellular membrane? What…

A: The cellular membrane is a semi-permeable lipid bilayer. The lipids found in the membrane are…

Q: What is meant by the term semi-permeable membrane?

A: Answer:  MEMBRANE = This is a outer layer of a cell that surrounds it. It is elastic in nature. This…

Q: How are proteins associated with the bilayer in membranes?

A: The membrane protein interacts with the biological membrane and a part of the cell membrane which…

Q: Plasma cells are key to the immune response because they secrete antibodies. Given that antibodies…

A: Plasma cells are white blood cells which are part of immune system.  The B lymphocytes differentiate…

Q: Do proteins move in the plane of the membrane?

A: Proteins are made up of a series of amino acids that are connected to each other by an amine or a…

Q: Why is the cell membrane not an absolute barrier between the cytoplasm and the external environment?

A: The cell membrane or cytoplasmic membrane is the semipermeable membrane of a cell that surrounds and…

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

A: A cell is the structural and functional working unit of life and also been described as building…

Q: which part of the endoplasmic reticulum has proteins made inside it?

A: Endoplasmic recticulm is the cell organelle which is present in almost all cells . They have…

Q: what types of molecules can passively move across the cell membrane?

A: The cell is the smallest and fundamental unit of life. Every living being made up of cells and it is…

Q: What are the forces that maintain structural integrity of biological membranes?

A: A biological membrane is primarily composed of a thin layer of a phospholipid bilayer that is…

Q: Why are membranes so critical to cell function?

A: All living cell contain a cell membrane, which is a semipermeable structure that surrounds the cell.…

Q: Why are membranes more permeable to nonpolar molecules than to most polar and ionized molecules?

A: The cells consist of cellular organelles that are involved in various functions. The cellular…

Q: What is the significance of plasma membrane?

A: Plasma membrane or cell membrane covers the cell. It is composed of lipid bilayer and proteins…

Q: Which of the following is true about integral proteins according to the fluid mosaic model? Integral…

A: Introduction According to the fluid mosaic model there are different types of proteins within the…

Q: How can the various transport mechanisms across the cell membrane affect the cells homeostasis?

A: Homeostasis is the process of cells, tissues, and organisms that allows for the maintenance and…

Q: Why are plasma membranes arranged as a bilayer rather than a monolayer?

A: The plasma membrane is the membrane found in all cells that separate the interior of the cell from…

Q: What is Endoplasmic Reticulum?

A: The endoplasmic reticulum (ER) is a continuous membrane structure within the cytoplasm of eukaryotic…

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.