Identify the polar, inorganic molecule which can pass freely through the plasma membrane. CH3CH2OH (ethanol) C6H12O6 (glucose) H2O (water) C6H6 (benzene) CO2 (carbon dioxide)

Q: Under which condition the flip-flop (movement from the outer layer to the inner layer) of a membrane…

A: Flip flop movement or transverse diffusion is known as movement of a molecule across the membrane…

Q: The processes of the transportation from the cytoplasm to organelles by protein translocators in the…

A: Transport vesicles assume a focal part in molecular traffic between various membrane encased…

Q: If you shift cells from low temperature to high temperature what lipid would you expect to increase…

A: The biological membrane is primarily made up of phospholipids and cholesterol. The phospholipids…

Q: What is the correct order of permeability for the following four substances across a pure…

A: The plasma membrane controls the passage of substances into and out of cells by being selectively…

Q: The region labeled with the arrow in the accompanying electron micrograph of the plasma membrane is…

A: The arrow points to the hydrophobic layer of the cell (plasma) membrane.

Q: A network of membranes where proteins are first synthesized and modified if they are bound for…

A: Proteins in our body are synthesized and secreted in a systematic manner and also based on the…

Q: What factors stiffen the plasma membrane? What makes it more fluid?

A: The plasma membrane is the outer covering of the cell that separates the internal cellular…

Q: Which of the following is most likely NOT a function of Peripheral Proteins?     support for…

A: Introduction - peripheral proteins attached to the surface of the membrane. Attachments of membrane…

Q: Describe the various types of specialized domains that can be established in the plasma membrane?…

A: Domains in plasma membrane can be formed by interaction of different types of molecules with each…

Q: In an integral membrane protein, which of the amino acids below is most likely to be found in the…

A: An integral membrane protein (IMP) is a type of membrane protein that is permanently attached to the…

Q: In the lungs, there are steep concentration gradients for oxygen and carbon dioxide molecules such…

A: Diffusion It refers to the process of transport of atoms, ions, molecules, and energy from the area…

Q: Proteins which are only on one side of the plasma membrane and may not interact with the…

A: The Proteins which are only on one side of the plasma membrane and may not interact with the…

Q: Which of the following would be most likely to interfere with the proper insertion of a protein into…

A:

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: Protein X is an unknown membrane protein found in erythrocytes that cannot be extracted from plasma…

A: Introduction: Protein is a large biomolecule made up of alpha-amino acids. These molecules are…

Q: What type of plasma membrane protein provides the means for moving materials across the plasma…

A: The proteins of the membrane play important roles such as the membrane receptor proteins that relay…

Q: Which of the followings is not true about the function of the Tight Junctions? (LO- K8) They hold…

A: Tight Junctions are one of the types of cell junctions. It is also known as zonula occludens.…

Q: When rhodamine-dyed mouse proteins were first mixed with fluorescein-dyed human proteins (in…

A: The membrane is a two-dimensional fluid many of its proteins like its lipids can move freely within…

Q: What would happen in each of the following cases where something related to intracellular transport…

A: Peptide has two ends: the end with a free amino group is called the N-terminal amino acid residue.…

Q: When the protein integrin (a transmembrane protein in human fibroblasts) is held in place, by…

A: Integrins are heterodimeric cell surface receptors that are potential therapeutic targets for a…

Q: Describe the composition of the plasma membrane. Include the general structure of different types of…

A: Membranes are structure which helps in covering and protecting the cell and internal structure. they…

Q: What is the plasma membrane made of? How does this affect the movement of lipid-soluble and…

A: In animal cell, the outermost layer of cell is cell membrane or plasma membrane. It is present…

Q: Why is each component of the plasma membrane important? What might happen, be specific, if one of…

A: Cell is the smallest structural and, functional unit of life. It is simple machinery that houses all…

Q: Which among the following defines GPI anchored proteins? 1)Integral proteins of the plasma membrane…

A: INTRODUCTION Glycophosphatidylinositol anchored proteins are microdomains seen in the plasma…

Q: Explain the Fluid-mosaic model of plasma membrane structure?

A: The plasma membrane is a selective transport barrier of the cells which separates the cytoplasm from…

Q: Does sodium chloride dissociate before going through the membrane? I am wondering because in…

A:

Q: In both Prokaryotes and Eukaryotes, which of the following structures can cross cell membranes using…

A: Introduction Cell transports are the movement of a material through the cell membrane. The material…

Q: In both Prokaryotes and Eukaryotes, which of the following structures can cross cell membranes using…

A: A prokaryote is an organism consisting of a single prokaryotic cell. Animals, plants, fungi, and…

Q: For a protein to be an integral membrane protein, it would have to be amphipathic, which means that…

A: Answer: Integral membrane proteins are the proteins which are embedded in phospholipid bilayer where…

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: For each protein, identify the following: If the protein is an integral, peripheral, or amphitropic…

A: * Integral monotopic proteins will permanently attached to membrane from one side only then it is…

Q: Match the cellular junction with its characteristic (side of cell, cellular role, intracellular…

A: Cell is basic structural and functional unit of life which controls all the activities of the body…

Q: Which of the following proteins is categorized as a multi-pass transmembrane protein (also called…

A: The ER membrane is responsible for the selective transfer of the molecules from the cytosol to the…

Q: Identify the non-polar organic molecule which can pass freely through the plasma membrane. CH3CH2OH…

A: A molecule of the kind normally found in living systems is known as an organic molecule. Organic…

Q: Which component of the plasma membrane is primarily responsible for forming a physical barrier…

A: The cell is the basic structural and functional unit of our body. It carries out many functions in…

Q: C. Define the difference between passive transport and active transport, and give examples of each.…

A: Each cell is surrounded by a biological membrane or plasma membrane. It is a phospholipid bilayer…

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 is the correct order of permeability for the following four substances across a pure…

A: Plasma membrane is a semi-permeable membrane that allows only selective molecules to pass through…

Q: Provide an example of a molecule that cannot pass through the membrane? Can pass but with…

A: Cell membrane or plasma membrane is considered as semi permeable membrane because it allows certain…

Q: A transmembrane protein has the following properties: it has two binding sites, one for solute A and…

A: Introduction :- Transmembrane proteins (TP) are integral membrane proteins that traverse the entire…

Q: Cholesterol has which of the following effects on the plasma membrane of an animal cell? it makes…

A: The plasma membrane of a human cell is an outer membrane of the cell that is composed of a…

Q: What is the cellular location of the MC1R protein?     nuclear     cytoplasmic     cell…

A: Cells are the basic and smallest units that make up living organisms. Cells can be classified as…

Q: When fluorescein-dyed human proteins were first mixed with rhodamine-dyed mouse proteins (in…

A: The membrane is a two-dimensional fluid many of its proteins like its lipids can move freely within…

Q: Which is the definition of 'retrograde' with respect to membrane trafficking?     movement from…

A:

Q: What happens to phospholipid mobility when the cell is treated with agents that disrupt the…

A: is a multiple choice question.

Q: A transmembrane protein has the following properties: it has two binding sites, one for solute A and…

A: Introduction :- Conformational changes in single polypeptides are caused by changes in main chain…

Q: What is the direction of travel for a vesicle being transported from cell body to axon terminal, and…

A: Anterograde  Anterograde transport also known as orthograde transport. In this transport the…

Q: Proteins that possess a signal sequence of substantially non-polar amino acids, but do not possess a…

A: The proteins destined to secretory pathways are synthesized on membrane-bound ribosomes. These…

Q: How long is a typical transmembrane domain, and what is the chemical composition of the amino acids…

A: Ans -A) ~ 20 amino acids; hydrophobic amino acids The typical transmembrane domain is of 20 amino…

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.