The sugars associated with glycoproteins and glycolipids of animal cell membranes  Maintain membrane fluidity at low temperatues Decrease membrane fluidity at high temperatures Serve as an energy source for the cell Serve as markers that distinguish one cell from another

Q: Which of the following would you expect to be freely permeable through a pure lipid bilayer?…

A: lipid bilayer is a thin polar membrane that is made of two layers of lipid molecules. Lipid…

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: What kinds of molecules the cell membrane witho transport proteins? O Large and hydrophobic= O Small…

A: Cell membranes act as barriers and gatekeepers. Cell membrane is semi-permeable .Cell membrane…

Q: Look at the structure of the molecule shown below. Select the option that best describes the…

A: The molecule depicted in the image is a nucleotide, specifically adenosine monophosphate (AMP).…

Q: For the lipids within the bilayer that comprise the plasma membrane: The hydrophilic ends face…

A: Structure of cell membraneLipid Bilayer-2 layers of phospholipidsPhosphate head is polar (water…

Q: What type of transport is shown in the figure below? Na+ Na* Na* ATP ADP K K+ + Pi Osmosis O…

A: Active transport occurs against the concentration gradient which mediated by carrier protein.

Q: Below are listed molecules with different chemical characteristics. Knowing that all molecules will…

A: Introduction  A thin polar membrane comprised of two layers of lipid molecules is known as a lipid…

Q: Which one of the these primary protein structures is most likely to form an alpha helix that would…

A:

Q: Although we tend to think of the cell membrane as a smooth covering for a cell, the membrane can…

A: The cell membrane is a bilayer of phospholipid. It contains lipids, proteins and also carbohydrates…

Q: State the functions and importance of each of the following cell membrane components. 1.…

A: Fluid mosaic model of plasma membrane was given by Singer and Nicolsan. It explains the lipid…

Q: You are studying the effects of temperature and lipid composition on membrane fluidity using…

A: The cell membrane, also known as the plasma membrane, is a thin, flexible barrier that surrounds the…

Q: is involved in the synthesis .of phospholipids Smooth Endoplasmic Reticulum O Endoplasmic Reticulum…

A: Introduction  Cell is the basic unit of life. All organisms be it single cellular or multicellular,…

Q: Which of the following is false about the way in which the cell membrane maintains its structure? A…

A: The cell membrane or the plasma membrane is the outer covering of a cell that encloses inner…

Q: Which of the following is false about the lipid rafts on the plasma membranes? The lipid rafts may…

A: Lipid rafts are specialized microdomains inside eukaryotic cell plasma membranes.They are…

Q: Which one of the these primary protein structures is most likely to form an alpha helix that would…

A: Proteins are the most abundant biomolecules found in the body responsible for carrying out gene…

Q: During active transport, ATP is hydrolyzed into ADP and one inorganic phosphate; more importantly,…

A: ATP hydrolysis It is a catabolic reaction process. This process  release the chemical energy which…

Q: Membrane synthesis in the cell involves the movement of specific of phospholipids to the cytosolic…

A: The plasma membrane, or the cell membrane, separates the interior of the cell from the outside…

Q: Any literature on cholesterol content of plasma membrane in various human cells?

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

Q: Biological membranes are critical components of cells that allow compartmentalisation of cellular…

A: Phospholipid comprising the bilayer.   Most membrane associated lipids are structurally asymmetric…

Q: Liver cells are in contact with the blood and exchange a variety of substances with the blood plasma…

A: Plasma membrane is not permeable to all molecules. charge molecules are not permeable to plasma…

Q: Which of the following fatty acids, if incorporated into a typical eukaryotic membrane phospholipid,…

A: The objective of the question is to identify which fatty acid, when incorporated into a eukaryotic…

Q: Which of the following substances brought into cells by receptor mediatec endocytosis? O Na+ ion…

A: There are two types of cellular processes, endocytosis and Exocytosis for taking substances in or…

Q: The following figure shows a typical phospholipid. Suppose this molecule was incorporated into a…

A: Non-polar macromolecules called lipids have a variety of functions in the body. Fatty acids that…

Q: Ammonia (NH3) is a weak base that under acidic conditions becomes protonated to the ammonium ion in…

A: The cells are the basic structures found in all living organisms with viruses and viroids being the…

Q: Which of the following statements is false? Integral membrane proteins cannot, in general, be…

A: Cells are surrounded by a semipermeable lipid bilayer called the cell membrane, sometimes known as…

Q: Why would it be advantageous for a cell to use glucose before lactose?

A: Both glucose and lactose are carbohydrates, which are used as energy source. Cells prefer glucose,…

Q: A phospholipid bilayer in the cell membrane (choose all that apply) is a total barrier to to the…

A: The struture of cell membrane suggest that it is a sea of lipids in which protein are embedded…

Q: Where is the KV1.1 (a membrane protein) polypeptide synthesized in the cell?  (word bank: cytoplasm,…

A: Potassium voltage-gated channel subfamily A member 1 also known as Kv1.1 is a shaker-related…

Q: The figure below illustrates a portion of a cell membrane. X denotes a membrane-spanning protein…

A: The plasma membrain of the cell is composed of phospholipid bilayer that is amphipathic (both…

Q: Which of the following molecules can normally cross a phospholipid bilayer by simple diffusion? O…

A: The transport process is defined as the movement of particles from one side of the cell membrane to…

Q: Provide examples and describe basic structure/function of plasma membrane components – Phospholipids…

A: Some cells, such as unicellular bacteria and protozoa, are complete creatures; others, such as…

Q: Sickle cell anemia is caused by too much consumption of disaccharides and monosaccharides a change…

A: Ans-1 In cell membrane lipid bilayer exists wherein phospholipids hydrocarbon chain face (tails)…

Q: Sort the descriptions into properties that describe either saturated phospholipids or unsaturated…

A: There are four types of biological macromolecules- nucleic acid, proteins, lipids and…

Q: Phospholipids form the main fabric of the plasma membrane. One feature of phospholipids is that when…

A: Step 1: The Hydrophilic describes substances or surfaces that have an affinity or attraction to…

Q: Which of the following is a true statement?     Sphingolipids contain 2 hydrophobic, acyl chains…

A: Spingolipids are a particular class of lipids which is composed of spingosine head and a long-chain…

Q: Discuss the permeability of the phospholipid bilayer to the molecules and ions listed below. Is the…

A: The phospholipid bilayer from the plasma membrane or any biological membrane in a cell. The plasma…

Q: Loss of this enzyme would be lethal to the cell CH₂-CH-CH₂ OH OH Glycerol- phosphate Loss of this…

A: Introduction The fluid mosaic model:- It was proposed by S.J. Singer and Garth L. Nicolson, which…

Q: Which of the following statements are TRUE about the phospholipid bilayer? Select all that apply.…

A: Fluid mosaic model of plasma membrane was given by Singer and Nicolsan. It explains the structure of…

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.