Which of the following phospholipid is considered as structural components of nervous tissue? Sphingomyelin Glycerophospholipid Inositol Plasmalogen
Q: Which of these general statements is TRUE about the lipid called phosphatidylethanolamine (or PE)?…
A: Introduction Phosphatidylethanolamine (PE) or Cephalin belongs to a class of phospholipids composed…
Q: What properties of intermediate filaments monomers distinguish them from the monomers that make up…
A: First option is correct because they are fibrous rather than globular proteins properties of…
Q: The epithelium with the shortest diffusion distance (distance a molecule would travel if moving…
A: It is a single layer of flat cells in contact with basal lamina of the epithelium.
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A: The skeletal muscle is formed of a bundle of striped or striated cylindrical fibers and comprises…
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A: Cell junctions are multiprotein structure that joins cells to each other. They help in cell to cell…
Q: Which of the following is not a potential biological role of the lipid asymmetry of the plasma…
A: The plasma membrane is also known by the name cell membrane. This membrane is found in all the major…
Q: Which of the following organelles is non-membranous? Rough endoplasmic reticulum Lysosome…
A: Eukaryotic cells are characterized by membrane-bound organelles, unlike prokaryotes which lack them.…
Q: Which of the following glycerophospholipids is not common in inner leaflet (cytoplasmic)?a)…
A: Glycerophospholipids or phosphoglycerides are glycerol-based phospholipids. They are the main…
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: Phospholipids are usually described as being able to diffuse freely through a lipid membrane. What…
A: Phospholipids consist of two fatty acids, a phosphate group, and a glycerol molecule. Phosphate…
Q: X Membrane proteins are necessary for active transport Y. Membrane proteins play a role in facitated…
A: For the movement of molecules or ions different transport systems are involved. These transport…
Q: Which of the following does NOT contain phosphate? mitochondrial cristae…
A: Introduction: Phosphorus is a chemical component found on earth in various compound structures. For…
Q: Which lipids are selectively enriched on the outer leaflet of the plas membrane in a healthy cell? O…
A: Plasma membrane: It forms the boundary of the cell, selective interface, and determines the…
Q: Skeletal muscles would be expected to contain large numbers of ————— because of their high energy…
A: Skeletal muscles are specialized contractile tissue found in animals. they are found between bones…
Q: With every breath we breathe in oxygen and breathe out CO2. In terms of the specific cellular…
A: Mitochondria are called powerhouses of the cell as the organelles are responsible for producing a…
Q: Which of the following is a sphingophospholipid?a) Lecithinb) Sphingomyelinc) Plasmolegend)…
A: Phospholipids are the group of lipids that contain hydrophilic phosphate group at one end i.e head…
Q: What effect will increasing the proportion of unsaturated fatty acids in the bilayer have on the…
A: The correct option is (A).
Q: True or false. Gap junctions enable substances to move between cells via ATP driven hydrolysis.
A: Gap junction At gap junctions, membrane proteins called Connexins forms tiny fluid filled tunnels…
Q: What is the correct rank the following molecules in regards to membrane permeability from MOST (1)…
A: Permeability is a fundamental property of the cell membrane which is essential for the maintenance…
Q: 2. Myoglobin is a small protein common in human beings. Which of the following best describes this…
A: Myoglobin is a globular protein made up of a single polypeptide chain of 153 amino acids. It has a…
Q: What is one feature of fibrillar collagen that contributes to its strength? They form…
A: Options A They form crosslinks between glycine and alanine residues on adjacent collagens..
Q: An example of glycerophospholipid involved in cell signaling isa) Cardiolipinb) Phosphatidic acidc)…
A: The glycerophospholipids are molecules made of fatty acids that are esterified to form a glycerol…
Q: In myoglobin (above), which level of protein organization includes peptide bonds, hydrogen bonds,…
A: Proteins are involved in structural support, storage, transport, signalling, movement, etc. in…
Q: What type of protein is present in the cell membrane? O Transmembrane and Peripheral O Peripheral…
A: The cell membrane, also called the plasma membrane, is a double layer of lipids and proteins that…
Q: When cross sectional area of the head group is greater than that of the acyl side chain, which of…
A: Step 1 Lipids are phospholipids or phosphoglycerides. They possess one hydrophilic polar head and…
Q: Cardiac muscle cells undergo a great deal of physical stress during contraction in order to pump…
A: All living organisms are made up of cells, which are the most basic unit of life. They are…
Q: Which of the following is not a fibrous protein? enzyme collagen keratin elastin none of the above.
A:
Q: When cross sectional area of the head group and acyl side chain is similar, which of the following…
A: Lipids are phospholipids or phosphoglycerides. They possess one hydrophilic polar head and two…
Q: Glycolipids are synthesized in golgi where they remain on the lumenal half of the lipid bilayer.
A: Answer: GLYCOLIPIDS = These are the compounds which are chemically derived from carbohydrate and…
Q: Pores across two plasma membranes Enzyme that synthesizes Cellulose Fibril that provides the most…
A: Given: Animal cells are usually enclosed within a plasma membrane which contains organelles and a…
Q: The presence of cholesterol in the plasma membranes of some animals
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A: Introduction: Vitamin C insufficiency is known as scurvy. Anemia, debility, tiredness,…
Q: Collagen is the main protein component of the ECM. The process of collagen synthesis is complex and…
A: Collagen provides stiffness, rigidity, smoothness, and hardness to human tissues. It's like a…
Q: All the following are containing collagen type I..EXCEPT: O Annulus fibrous O Perichondrium O…
A: The annulus fibrosus is a lamellar fibrocartilaginous tissue composed of 15–25 concentric rings or…
Q: The extracellular matrix is NOT composed of? O Actin O Collagens O Fibronectin O Proteoglycans O…
A: An extracellular matrix composed of: Structural proteins Hydrated matrix Adhesion proteins
Q: n collagen, what is the greatest level of protein structure
A: Large and complex biomolecules that are generated by amino acids connected through peptide bonds are…
Q: In muscle, calcium moves from the cytoplasm to the sarcoplasmic reticulum by using active transport,…
A: Calcium ions help in the contraction and relaxation of muscles.
Q: Which cell type is the most metabolically active among the following: TABLE 3.1 Composition of…
A: Inner mitochondrial membrane contains the components involved in the electron transport chain.…
Q: Mention three proteoglycan that form he major component of connective tissue.
A: Proteoglycans are heavily glycosylated proteins. They are macromolecules of cell surface or…
Q: Which of the following components is attached to lipids and proteins on the extracellular side of…
A: The body is composed of two types of molecules, namely macromolecule and micromolecule. The lipids…
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: 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 these general statements is TRUE about the lipid called phosphatidylcholine (or PC)?
A: Phosphotidylcholine are most abundant types of phospholipid in cell membrane. It is made up of…
Q: Which of the following proteins serves a structural function (not an enzymatic function)?…
A: Connective tissues are the most abundant tissues and help in linking and supporting tissues /organs…
Q: A platelet is able to play its role in the formation of blood clot when one of the…
A: The excessive bleeding from a damaged vessel in the body can be prevented by the blood clotting…
Q: Which of the following molecules will likely cross a cell membrane through simple diffusion estrogen…
A: Cell membrane, over all, is made up of hydrophobic and nonpolar parts. So only those substances will…
Q: What is a fibrous protein? Compare and contrast the structures of α-keratin and collagen.
A: Proteins are macromolecules made of amino acid residues. Proteins play different functions such as…
Q: Which of the following would you not expect to find in a human erythrocyte? O Band 4.3 Spectrin…
A: Human Erythrocytes or RBCs are red blood cells present in the blood. Their basic function is the…
Q: What do chylomicrons transport? exogenous fatty acids, cholesterol, and phospholipids O exogenous…
A: Chylomicrons are basically small droplets of fat which are broken down by the intestinal lining and…
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- Which of the following glycerophospholipids is not common in inner leaflet (cytoplasmic)?a) Phosphatidylserineb) Phosphatidylethanolaminec) Phosphatidylinositold) PhosphatidylcholineWhich of the following is a sphingophospholipid?a) Lecithinb) Sphingomyelinc) Plasmolegend) CardiolipinWhich is NOT a phospholipid? cerebroside phosphatidylinositol cardiolipin phosphatidylethanolamine phosphatidylglycerol
- Which of the following lipids is NOT found in biological membranes? glycolipids phosphoacylglycerols triacylglycerols cholesterolAn example of glycerophospholipid involved in cell signaling isa) Cardiolipinb) Phosphatidic acidc) Phosphatidylcholined) PhosphatidylinositolWhich of the following serve as signaling molecules located along the membrane? Glycolipids Sphingolipids Phospholipids Sterol lipids
- Which of the following lipid types is NOT found in biological membranes? Glycerophospholipids. Cholesterol. Triacylglycerols. Sphingolipids. Gangliosides.Which of the following molecules is NOT an amphipathic? phosphatidyl choline cholesterol oleic acid glucosewhich portion of phosphatidylinositol molecules contribute to the fluidity of the molecule and polarity of the bilayer
- This specific major lipid component of Acid-fast cell wall is a strong "hydrophobic" molecule that affects its cell wall permeabilityGlycerin, bound to three fatty acids, forms a ____ fat, which is also called neutral fat. cholesterol steroid triglyceride phospholipidWhich of the following functions is NOT or cannot be performed by lipids? They can bind to DNA response elements to control gene expression. They can serve as chemical messengers. They can help in the selective permeability of membranes. They can form pores for the thermodynamically favored passage of ions across membranes.