Which cell type is the most metabolically active among the following: TABLE 3.1 Composition of Selected Membranes Membrane Protein Lipid Carbohydrate Red blood cell membrane 49% 43% 8% Myelin membrane around nerve cells 18% 79% 3% Inner mitochondrial membrane 76% 24% 0% O Myelin surrounding nerve cells O These membranes are metabolically equal O Inner mitochondrial membrane

Q: The molecule Q moves through the non-polar portion of the inner membrane of mitochondria.  Based…

A: They have their own DNA which is similar to bacterial DNA. They have ribosomes, enzymes and…

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: Which of the following is important in active transport of ions in neurons?     membrane channels…

A: Active transport is the movement of molecules from a region of low concentration to a region of high…

Q: dentify the nonpolar, inorganic molecule which can pass freely through the plasma membrane.

A: Answer: Plasma membrane is semi-permeable membrane which is composed of lipid bilayer. It is the…

Q: What is the free energy change for the transport of calcium ions (Ca++) across a membrane from a…

A: Ions are distributed on either side of the cell membrane. The transport of ions across the membrane…

Q: Identify the polar, inorganic molecule which can pass freely through the plasma membrane. CH3CH2OH…

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Q: Enzyme(s) associated with the cytosolic face of the plasma membrane directly activated by G-proteins…

A: GPCRs are the largest and most diverse groups of membrane receptors. They convert extracellular…

Q: [Membrane Proteins] Based on the figure provided, What classification best describes G-proteins?…

A: G proteins, generally defined as guanine nucleotide-binding proteins, are a protein family that acts…

Q: What class of amino acids would likely be found in the region of the protein that is embedded within…

A: d) Nonpolar and hydrophobic

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: Calculate the energy required for, or released in, a transport of 20 Na+ ions and of 100 molecules…

A: For a uncharged species, only its chemical potential gradient (i.e. concentration gradient) across…

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

A: Lipids are considered as one of the important biomolecules in the cell. These are composed of fatty…

Q: The transition temperatures of the following membranes are -36°C, 23°C, and 41°C. Which membrane…

A: A cell is a structural and functional unit of life. The structure and function of a cell have been…

Q: What happens across the membrane of an electricallyactive cell is a dynamic process that is hard to…

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Q: The inner leaflet (monolayer) of the human erythrocyte membrane consists predominantly of…

A: Erythrocytes (red blood cells) are cells involved in the transport of oxygen and carbon dioxide in…

Q: Diatomic oxygen (O2) exhibits which of the following membrane transport movements?

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Q: Cerebrosides have. A) A myelin sheet. B A cephalin group. © A carbohydrate group. D A choline group.…

A: Glycogen and lipids are both major forms of energy storage that are tightly regulated by hormones…

Q: Of the following cell membrane lipids, which one prefers to reside in the INNER leaflet (or inner…

A: Phospholipids are lipid molecules constituting the cell membrane and are made up of two fatty acids…

Q: Glucose (C6H12O6) exhibits which of the following membrane transport movements? it is able to cross…

A: According to guidelines we have to answer the first question only. so please kindly post the…

Q: Do cell maintain osomsis balance by being in the state of isontonic ?

A: osmotic pressure: the hydrostatic pressure exerted by a solution across a semipermeable membrane…

Q: 3 of 16 Which statement about the IP3ODAG pathway is false? O Diacylglycerol can act as a second…

A: IP3 stands for inositol triphosphate. DAG stands for diacylglycerol.

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A: Sweet taste can be quantified in units of “molar relative sweetness” (MRS), a measure that compares…

Q: How do proton pumps contribute to membrane potential? Please explain in 3-8 sentences

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Q: Which of the following membranes would be MOST fluid? One containing lipids with saturated 16…

A: Membrane fluidity gets increased when there is a high proportion of unsaturated fatty acids that…

Q: Which of the following membrane components is found in the lowest abundance on the outer leaflet of…

A: when we look at the general distribution of phospholipids {PL} in the unit membrane we can see that…

Q: Which lipids are selectively enriched on the outer leaflet of the plas membrane in a healthy cell? O…

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Q: Na+1 is a charged ion that cannot easily cross the membrane. Is there any way for this ion to get…

A: the flow of Na+1 ion across a membrane depends on stimulus. whenever a cell membrane gets activated…

Q: One thousand Ca2+ channels open in the plasma membrane of a cell that is 1000 μm3 in size and has a…

A: The passage of ions through the cell membrane takes place depending on the concentration of the ion…

Q: What effect will increasing the proportion of unsaturated fatty acids in the bilayer have on the…

A: The correct option is (A).

Q: Glucose cannot enter easily inside the cell and require insulin to do so. What type of…

A: Glucose transporters are a wide group of membrane proteins that facilitate the transport of glucose…

Q: Phosphatidylcholine is the only major phospholipid in the plasma membrane.     true   false

A: The cell membrane is a structure which protects the cell and acts as a barrier and transports the…

Q: Which of the following phospholipid is considered as structural components of nervous tissue?…

A: Phospholipids are found in high concentrations in the nervous tissue.

Q: Nitric oxide (NO) is a gaseous molecule with lipid solubility similar to that of O2 and CO2.…

A: ANSWER: Nitric oxide (NO) is a gaseous molecule involved in several physiological and pathological…

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

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Q: Which of the following positively-charged ions is about 10,000 times more concentrated outside the…

A: Ions are very essential in our body as they help in passing the information during action potential…

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 of the following is NOT a weakness of the Meyer Overton theory? does not predict how…

A: Introduction- The The Meyer–Overton rule theory was given by  Hans Meyer and Ernest Overton for…

Q: The distribution of sodium ions across the cell membrane of a neuron is 20 mmol/L inside the cell…

A: Hi! Thank you for posting the question on Bartleby. As per the guidelines we can answer only one…

Q: Neurotransmitters make their way to terminal boutons from the cell body O by diffusion from a high…

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Q: There is a relatively high concentration of phosphatidylcholine on the lumenal side of the ER…

A: Phosphatidylcholine is a type of phospholipid and forms a major component of biological membranes.…

Q: Which of the following cell membrane lipids prefers to reside in the INNER leaflet (or inner half)…

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Q: what element with a mass number 100 has 56 neurons in its nucleus

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Q: Which of the following membranes contain low cholesterol and high cardiolipin?a) Myelin sheathb)…

A: Cholesterol is a steroid, which is an essential structural component of animal cell membrane and it…

Q: Which of the following has high lipid content?a) Myelin sheathb) Plasma membranec) Inner…

A: Lipid is also a biomolecule, among the other form of biomolecules like protein and carbohydrate. it…

Q: Which of the following positively-charged ions is about 10,000 times more concentrated outside the…

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Q: ospholipase C : IP3-DAG pathway,with diagram

A:

Q: Body Activity What happens if there's a sufficient supply of ATP What happens if there's an…

A: The below table explain the uses of ATP molecules in sufficient and insufficient amount.

Q: Why glucose does not cross the cell membrane through open channels?

A: As we know glucose is a polar molecule composed of carbon connected with H and OH groups which makes…

Q: When pharmacology researchers design drugs that must enter into cells in order to be effective, they…

A: Plasma membranes are a lipid bilayer which are composed of several phospholipids joined together in…

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.