embrane synthesis in the cell requires the selective retention of certain types of lipids on one side or the other. hich group of enzymes accomplishes this task? O phospholipases O Translocons Oflippases scramblases

Q: hat happens in the Golgi? Scramblase flips phospholipids from one leaflet to the other o Addition of…

A: The Golgi apparatus is a membrane-bound organelle found in most cells. It prepares proteins and…

Q: phosphatidylcholine aggregates to form * no correct answer given micelles both O liposomes

A: Phosphatidylcholine are a class of phospholipids that incorporate choline as a headgroup . They are…

Q: would likely be in the center of would likely be associated with the polar head groups and In an…

A: The amino acids are classified as polar and non-polar. The integral membrane proteins are…

Q: When the voltage gated potassium channel moves from an open to a closed formation the 5th alpha…

A: Biomolecules are the biological molecules that are present inside the living organisms. These…

Q: All the following is function of membrane proteins EXCEPT * Enzymatic activity O Cell-cell contact…

A: Since multiple questions are asked in this question, I will explain the first question for you.…

Q: Which amino acid(s) has the possibility of forming inter/intra polypeptide chain covalent bonds. O…

A: Amino acids are monomeric units of proteins and each protein is made up of more than hundreds of…

Q: Which of the following statements is true In ABO blood typing, lack of glycosyltransferase and…

A: ABO blood typing is carried out to determine the blood group of an individual. It is based on the…

Q: When a protein is being assembled in the monosome, the bond that forms between a newly added amino…

A: Introduction :- Amino acids are the building blocks of proteins. The building blocks of life are…

Q: In receptor mediated endocytosis, the receptors (such as the low-density lipoprotein, LDL, receptor)…

A: The plasma membrane regulates the entry and exit of the molecules across the membrane. The small…

Q: lippase and scramblase play important roles in the movement of lipid molecules across a membrane…

A: The plasma membrane is a very thin film of protein and lipid which separate cytosol from the…

Q: Which of the following is INCORRECT about protein denaturation? O Denaturation destroys the…

A: Protein three dimensional structure determine its function as it leads to its interaction with other…

Q: What is the primary function of carbohydrates attachedto the exterior of cell membranes?a.…

A: The plasma membrane is the outermost membrane of the cell which defines the borders of the cell and…

Q: Which of the following statements regarding protein phosphorylation is FALSE? Select one: O A.…

A: "Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: the Na+K+ -ATP is a(n)  a) globular protein b) symport c) triple helical nucleic acid  d) small…

A: Ans. The Na+K+ pump or Na+/K+-ATPase carries out a form of active transport, it is a protein pump…

Q: ich of the following molecules is NOT amphipathic? triacylglycerides fatty acids sphingolipids o…

A: Hydrophilicity is the character of the molecules in which molecules love water that is they dissolve…

Q: TIM/TOM complexes are involved in transport of proteins ac O mitochondria O nucleus Endoplasmic…

A: Ans- Mitochondria

Q: embrane synthesis in the cell requires the selective retention of certain types of lipids on one…

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

Q: An adipocyteis an animal cell that is specialized for the storage of triacylglycerol molecules. A…

A: Adipocytes are cells of the adipose tissue and are involved in fat storage. While hepatocytes are…

Q: Some proteins are shuttled back and forth between the nucleus and the cytoplasm.  How do you think…

A: Nuclear envelop found in the cells, separates the contents of nucleus from cytoplasm and also…

Q: Which membrane structures Select one: O A. integrins O B. glycoproteins

A: The spontaneous flow or diffusion of water or other solvents across a semipermeable barrier (one…

Q: An advantage of membrane proteins is that they may be released from the membrane in a regulated…

A: Membrane proteins are a family of proteins that are found in biological membranes, whose primary…

Q: Ennumerate the essential amino acids and identify the functional groups present in their structures.…

A: Aminoacids are the building blocks of proteins that are linked by peptide bond. Aminoacids are…

Q: The metal ion activator of protein phosphorylating enzymes called kinases is: O Magnesium Chromium…

A: Metal ions are needed for the activation of kinases (protein phosphorylating enzymes), to make the…

Q: ATP works in conjunction with motor proteins (such as cytoskeleton proteins) to make them move by…

A: The cytoskeleton is a structure that helps cells maintain their structure and the internal order,…

Q: Conjugated proteins which are a combination of amino acids and carbohydrates O A. nucleoproteins OB.…

A: Based on the composition, proteins are of two types, simple and conjugated proteins. The simple…

Q: What type of protein is often used to carry other molecules? O A. Fibrous O B. Amino O C. Membrane O…

A: Proteins are secondary structures of amino acid sequences. The amino acids undergo condensation to…

Q: If the location in which a protein functions is the endomembrane system then the protein is made on…

A: Viruses contain nucleic acid in the core region while the exterior/ envelope is made up of a…

Q: What would happen if you add a signal sequence (for the ER) to the amino terminal end of a normally…

A: The endoplasmic reticulum (ER) is a multifunctional continuous membrane system that generates a…

Q: Which of the following molecules is NOT an amphipathic?     phosphatidyl choline     cholesterol…

A: Amphiphatic are the molecules which contain both hydrophobic as well as hydrophilic in their…

Q: The amino acid sequence Leu-His-Arg-Leu-Asp-Ala-Gln-SerLys-Leu-Ser-Ser is a signal sequence that…

A: Signal sequence is a short sequence of amino acid residues generally 16 to 30 amino acids long which…

Q: The addition and initial processing of N-linked oligosaccharides commences in the OER: Golgi O cis…

A: Polysaccharides and oligosachharide are also known as glycans.  N-linked glycosylation, is the…

Q: Folding of a cytoplasmic globular protein: O minimizes the solvent-accessible surface area. O…

A: Proteins are characterised as fibrous, membrane, or globular based on their solubility, function,…

Q: Which of these general statements is TRUE about the lipid called phosphatidylethanolamine (or PE)? O…

A: Introduction: Lipids are biomolecules that play an important role in the structure and function of…

Q: Which statement about N-linked glycosylation is correct? O N-linked oligosaccharides are attached to…

A: DISCLAIMER: Since you have asked multiple questions, we have solved the first question for you. If…

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: Which protein is responsible for inhibiting endosome acidification? O A.E О В.А OC.P P O D.N

A: When a cell recognizes a viral genome in its cell body, endosomes are used to encapsulate and…

Q: stion Glycosidic bond links two amino acids together in a polypeptide chain. Select one: red OTrue…

A: Q. 100. The correct answer is False .  The peptide bonds link two amino acid together in 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: Characteristics of lipids: |A Steroids are molecules characterized by cy- cles; B Diacylglycerol…

A: Lipids are molecules containing hydrocarbons. They make up the building blocks of the structure and…

Q: Prion strucutre: If your good normal cellular prion spontaneously misfold into a disease causing…

A: A prion is a type of protein that can trigger normal proteins in the brain to fold abnormally. Prion…

Q: Proteoglycans form proteoglycan aggregates after being bound to: Select one: a. Glycogenin through a…

A: Proteoglycan aggregates are considered as the major structural component present in the…

Q: The majority of amino acid residues found in the portion of a beta-barrel in contact with the…

A: Asked : Nature of majority of amino acid in beta barrel which are in contact with solute.

Q: The L-configuration of this amino acid is important for the synthesis of proteins, membrane…

A: Proteins are produced during translation.

Q: Trace the path of a protein synthesized on a ribosome attached to the rough endoplasmic reticulum…

A: The subcellular structures involved in the protein passage through the cytoplasm to the cell…

Q: Which type of amino acid would be found on the outside of a portion of a protein embedded in the…

A: The proteins are made up of amino acids that are joints together by peptide bonds. Actually 20…

Q: Not yet answered Protein X and Y are mixed together. Protein X is 400 residues in size, and…

A: Chromatography It is a laboratory technique through which a mixture is separated into its…

Q: Which of the following statements best describe(s) the mechanism by which correct protein folding…

A: Answer :-   Step 1   proteins are one of the macromolecules present in the living organism. They…

Q: The endothelial cells found closest to the site of an infection, express proteins called lectins.…

A: As per bartleby guidelines we are allowed to answer only one question please post the other…

Q: Micelles are bilayer of lipids that bury their non-polar tails outside the spherical structure in a…

A: Micelles These are oriented aggregate of surface molecules that have both the hydrophobic and…

Cell Signaling

It allows cells to perform various cellular activities, coordinate, and interact with other cells. All cells of an organism receive signals from their environments and respond accordingly. Even the unicellular eukaryotes receive signals secreted by other cells and respond. In the case of yeast, mating takes place by signaling between the yeast cells. Communication by cell signaling in a multicellular organism has become a vast and important part of various fields of biology.