Which of the following is not a lipid link that anchors membrane-associated proteins to the bilayer?     Thioether-linked prenyl anchors.     Ester-linked triacylglycerol anchors.     Glycosyl phosphatidylinositol anchors.     Thioester-linked fatty acyl anchors.     Amide-linked myristoyl anchors.

Q: hich of the following statements is true about actin: OActin is translated by free ribosomes O…

A: Actin is known as the thin filament. It is made up of the protein named actin.

Q: Cholesterol-lipid microdomains are often referred to as membrane rafts.

A: True.

Q: Secretory vesicles (destined for exocytosis) that fuse with the plasma membrane only in an…

A: Exocytosis is a process through which cells transports molecules (mostly polar) in bulk out of the…

Q: Please help me with this question. More than one answer may be correct.  Molecules involved in…

A: Adherens junctions facilitate the coupling of individual cells into different configurations…

Q: Explain why nucleic acid won’t get through the plasma membrane on its own.  Discuss the energetic…

A: The plasma membrane, also known as the cell membrane, is the membrane that divides the inside of the…

Q: REEP family proteins act as wedges to promote bending of the membrane true or false

A: The structure and operation of the endoplasmic reticulum (ER) depend heavily on the receptor…

Q: you discover that myoglobin has an isoelectric point of 6.8 and chymotrypsin has an isoelectric…

A: Isoelectric point (pI) of a protein is the pH at which the net charge of the protein is 0. When pH…

Q: Which of the following molecules is more likely to diffuse through a synthetic lipid bilayer (i.e. a…

A: Being completely made of lipids and containing no transporters, the lipid bilayer will be highly…

Q: When the proteins of human gut epithelial cells adhere to each other so tightly that digestive…

A: Cell junctions are multiprotein structure that joins cells to each other. They help in cell to cell…

Q: Choose the statements that describe how the helix orients in the tertiary structure of an integral…

A: Plasma membrane is made up of mainly phospholipid and protein. Membrane protein can be classified as…

Q: Being an integral membrane protein is critical to the function of which of the following protein…

A: Integral membrane proteins are membrane proteins that are permanently attached to the biological…

Q: network of collagen fibers. Which type of glycoprotein is found in cartilage? Cartilage consists of…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Eukaryotic membrane fluidity can be increased by which of the following mechanisms? increasing the…

A: A cell is defined as the smallest unit of a living organism which is the basic structural,…

Q: Which of the following statements related to intercellular junctions is false? O Cadherins are…

A: Cell junctions, also known as intercellular bridges or junctional complexes, are a group of cellular…

Q: Each answer can be used more than once, or not at all. - Simple Diffusion - Facilitated diffusion…

A: Introduction Diffusion is a process which involves the movement of molecules from a high…

Q: Which of the following statements about the membrane bilayer is FALSE?

A: Introduction: Lipids are the constituents of membrane structure and regulate the membrane…

Q: Which of the following molecules is more likely to diffuse through a synthetic lipid bilayer (i.e. a…

A: Part A. The protein backbone is the repetitive structure with nitrogen, alpha-carbon and carbon…

Q: Match the following to their proper description (answers may be used more than once).   Gap…

A: Below are matched with their description:-

Q: What are the 3 main categories of membrane lipids.

A: “Since you have posted multiple questions, we will provide the solution only to the first question…

Q: What is the expected subcellular location for a protein has only an amino-terminal signal sequence…

A: Amino-terminal signal peptides (SPs) are short regions that guide the targeting of secretory…

Q: Describe the macromolecular and biophysical characteristics of collagen in the extracellular matrix…

A: There are few points to know about collagen.  It is the major structural protein in the…

Q: Many diseases are characterized by fibrosis, which is excess scarring. This scarring is often caused…

A: Fibrosis is also termed fibrotic scarring, is a pathological wound healing in which connective…

Q: A researcher is isolating proteins from a cell via different techniques. They find that when the…

A: Establishing protein expression is important in the study of cells, because proteins often carry out…

Q: which portion of phosphatidylinositol molecules contribute to the fluidity of the molecule and…

A: In eukaryotic cells, the widely occurring lipids are found to be phosphatidylinositol (PI). This…

Q: The distribution of water is determined by solute concentrations. A hypertonic solution would cause…

A: Dissolving a substance in water creates concentration. If we dissolve even more substance then we…

Q: he fluid mosaic model. and glycolipids.

A: A cell is the single basic component of life as it contains all the vital molecules for sustaining…

Q: In receptor-mediated endocytosis, each of the following could be a fate for the receptors and/or…

A: Introduction Endocytosis is a cellular mechanism that allows substances to enter the cell. A layer…

Q: Plasma membrane phospholipid asymmetry: O is maintained when vesicles are endocytosed such that the…

A: Phospholipids, which are made up of fatty acids and alcohol, make up the majority of the cell…

Q: Microtubules are important for transporting cargo in nerve cell axons, as diagrammed in Figure Q17-…

A: Introduction  The cytoskeleton mostly consists of microtubules. They are present in every 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.