Q: Suggest a reason why amino acids are usually more soluble at pH extremes than they are at neutral…
A: Introduction: Amino acids are a group of organic compounds containing two functional groups- amino…
Q: 57. An increase in the ratio of saturated to unsaturated fatty acid chains in a membrane…
A: Lipids are macromolecules made up of carbon, hydrogen, and oxygen just like carbohydrates but in…
Q: structure of cholesterol, define the three regions of the molecule, know that this molecule…
A: Cholesterol is a chemical compound that consists of steroid nucleus and is important component of…
Q: rounds of beta-oxidation are needed to oxidize the fatty acid
A:
Q: Protein synthesis is energetically expensive. Consider the hydrolysis of ATP into AMP as equivalent…
A: Translation or protein synthesis is the process in which ribosomes in the cytoplasm or endoplasmic…
Q: Some of the reactions of NO in the blood do not cause problems at low concentrations but can upset…
A: Nitric oxide is a free radical with lone pair of electron.It is an important molecule in cell…
Q: Question:- Based on the figure below, predict what peptide bond could be the substrate of each…
A: Proteolytic enzymes cleave the proteins at specific locations. The specificity is determined by the…
Q: Protein,nfalded==> Proteinalded Under certain conditions, a specific protein has the following…
A: Proteins have four levels of the structural organization including Primary, secondary,…
Q: or 41. Why are ATP's phosphoanhydride bonds high energy? Why is ATP hydrolysis to be so favorable?
A:
Q: Exponential expansion? Compare the amount of information inherent in the genome, the proteome, and…
A: Introduction: The functional part of DNA is referred to as the gene. It contains both coding and…
Q: How are the following enzymes involved in the anabolism of fatty acids? (please include structure,…
A: All animals and plants synthesize fatty acids known as triacylglycerol. In animals , it is…
Q: Phosphorylated compounds with a high hydrolysis rate have a high phosphoryl group transfer…
A: Because phosphorus is thermodynamically unstable and kinetically stable, it is an important molecule…
Q: Dilution factor problem in buffer and unbuffered solution in enzyme. In factors affecting enzyme…
A: In the Given question: 4 ml of 2% starch unbuffered solution was added to 4 ml of buffered solution…
Q: Molecular detail of spike Y453F
A: Spike proteins play a vital role in however these viruses infect their hosts. See all our coverage…
Q: name and explain the model that most likely accounts for cooperativity in enzymeNADH Also indicate…
A: Co-operativity is a phenomenon that is exhibited by enzymes or receptors. The enzymes/receptors are…
Q: What is edman degradation and why does no reaction occur when sungsanpin was subjected to edman…
A: Edman degradation is a method for sequencing of polypeptide chains.
Q: BIOMOLECULES - MULTIPLE CHOICE - Please answer properly QUESTION : If a cell has an adequate supply…
A: The de novo pathway enzymes use 5-phosphoribosyl-1-pyrophosphate (PRPP) for building both purine…
Q: Independent Activity 3 Identify which parts of the graph represent reactions with and without…
A: Enzymes are biocatalyst which catalyze the biochemical reactions in which substrates are converted…
Q: Express your answer briefly, not more than 30 words. Express your answer in your own words. What…
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: IX. Insulin, a hormone vital in blood sugar regulation and having a polypeptide chain with disulfide…
A: Insulin is a peptide hormone that downregulates blood glucose levels. Hormone insulin contains two…
Q: under certain conditions alpha helical bundles can form and can facilitate protein insertion into…
A: Integral membrane proteins fold into their active conformations in a complex milieu dictated by the…
Q: feedback inhibition. Which step must be inhibited to regulate cholesterol synthesis?
A: The question is about the biomolecule synthesis, i.e cholesterol. What are the steps required for…
Q: In human beings, what is the major control of de novo pyrimidine nucleotide synthesis? A. substrate…
A: De novo synthesis of pyrimidine nucleotides takes place in cytosol, first the pyrimidin is…
Q: Glycerophospholipids Phosphatidylethanolamine 3. In case the cell is in a state requiring large…
A: Glycerophospholipids contains two fatty acid chain attached to a glycerol moiety.…
Q: IX. Insulin, a hormone vital in blood sugar regulation and having a polypeptide chain with disulfide…
A: Insulin is a hormone responsible for the regulation of sugar levels in the blood. Insulin hormone is…
Q: Ar 1. In diffusion, the net movement of a substance travels down its concentration gradient. Explain…
A: A concentration gradient is a difference in the concentration of a substance between the cell and…
Q: R5 In the electron transport chain, there are 5 types of compounds used to transport electrons.…
A: Electron transport chain is the process of transfer of electrons through a series of electron…
Q: Enzyme: Crystal Structure of Wild-Type Human Phosphoglucomutase-1 (PGM1) the description of the…
A: The enzyme PGM1 is very well known for its central role in specific human metabolism, where it…
Q: Compute for ATP production of lipid ( a glycerol and a 16-C fatty acid) show solution and…
A:
Q: 5. Which reaction yields a more complex molecule and is reductive?
A: The reactions which take place in living cells are called Metabolic reactions. Food is converted to…
Q: Suggest a reason why the cell membranes of bacteria grown at 20°C tend to have a higher proportion…
A: The fluidity of lipid bilayer, the optimal value of which is a prerequisite for normal animal cell…
Q: Careful, but not too careful. Why is it crucial that protein synthesis has an error frequency of…
A: Proteins are synthesized from amino acids. Proteins are synthesized in two stages, that are…
Q: When an enzyme binds its substrates, it is said that "degrees of freedom are lost." a.Does this…
A: Enzymes are biological catalysts that aid in the speeding up of chemical reactions. Proteins called…
Q: 2. Characteristics of enzymes: a. One characteristic of enzymes is that they are reusable. This is…
A: Enzymes are biological catalysts that are proteins involved in speeding up the chemical reactions in…
Q: Metabolic regulation (Ch. 15) 1. The Vmax of the enzyme glycogen phosphorylase from skeletal muscle…
A: Glycogen phosphorylase is the enzyme which is vital for the controlled use of stored glucose…
Q: Energy Energy 2. For both of the graphs below, (A) draw a new blue line showing what the reaction…
A: exergonic biochemical reactions are high energy reactions where the reactants have higher energy…
Q: P3D.2 In biological cells, the energy released by the oxidation of foods is stored in adenosine…
A: The values provided in the questions are: T = 310 K H (enthalpy change) = -20 kJ.mol-1 G = - 31…
Q: Question:- Explain why withholding galactose from the diet of galactosaemia patients has no effects…
A: The oligosaccharides are produced in the endoplasmic reticulum and are transported to the protein…
Q: why the cell membrane of bacteria grown at 20oC tend to have a higher proportion of unsaturated…
A: Cell membranes are composed of phospholipid bilayer, lipoproteins, cholesterol etc. Each…
Q: Briefly explain why chicken fat, which largely consists of various triacylglycerols, has such a…
A: Lipid is an essential biomolecule. like phospholipid, triglycerides, sterols are part of it .…
Q: α -Amylose is an unbranched glucose polymer. Why would this polymer not be as effective a storage…
A: In the absence of glucose, glycogen is the body's main energy source. In the liver, glycogen is…
Q: hanges in delta-S for the folding of a protein is positive and provides the most significant…
A: Protein folding is the physical process by which a protein chain acquires a its native three…
Q: The most common form of malnutrition in children in the world, kwashiorkor, is caused by a diet…
A: Effect on high level of insulin on: 3.1% lipid utilization: An insulin level get increased it…
Q: The hypoxanthine analogue Allopurinol, which effectively treats gout , has no effect on the severe…
A: Alloprinol is structural analog of the natural purine base , hypoxanthine. Hypoxanthine is an…
Q: Cellular pH is slightly alkaline (pH 7.4); Explain why a seemingly slight decrease in pH to 6.8 can…
A: Cells are defined as the basic building blocks of all living things. These cells play a major role…
Q: Enzyme Activity and Physiological Function, The Vmax of the enzyme glycogen phosphorylase from…
A: Glycogen Phosphorylase It is a major enzyme of Glycogenolysis that breaks glycogen and releases…
Q: Suggest a reason why the cell membrane of bacteria grown at 20oC tend to have a higher proportion of…
A: An unsaturated fatty acids are the one which consists of at least one double bond within their fatty…
Q: Question: Fatty acid degradation (breakdown) and synthesis have many similarities but are uniquely…
A: Fats (or triglycerides) are consumed as food or produced by adipocytes or hepatocytes using…
Q: multiple choice, choose the correct answer Under which of the following conditions would an enzyme…
A: The enzyme is protein molecules that increase the rate of the reaction by decreasing the energy of…
Cells and Membranes
a. Give two examples of molecules that can pass through cell membranes without the need for energy, why can they do so?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Please ASAP. Thanku. Which of the following can undergo simple diffusion through a phospholipid bilayer? K+ H2O CO2 GlucoseQIV. Determine if the level of organization is molecular or cellular. Tick True if molecular. Tick False if cellular. Prokaryotic cells have no membrane-bound nucleus, and the organelles have no surrounding membranes. Select one: O True O FalseImage analysis. The outer boundary of the cell is the plasma membrane.In the image below, molecules that cannot cross the membrane are glucose and ions.Why can't they cross the membrane? [MA] (c) (d) (a) Small uncharged molecules (b) Lipid-soluble Water-soluble substances lons substances Glucose Hydrocarbon Nat K+ H20 CO2 H+ cF Cat+ NH3 O They are hydrophobic O They are hydrophilic O large O Na, K, Ca and H ions will bind with phosphate Chloride ions will be repelled by phosphate they are small in size to
- Transport. Provided below is an abstracted equation describing an active cell membrane transport from outside the cell to the cytoplasm, involving a membrane carrier (Cmemb), a substrate (Sin) (growth factor etc.) to be carried and released (Sout) into the cytoplasm. a) What kind of feedback mechanism is restricting this process? b) Construct a Forrester Diagram Membrane Transport Carrier, C:C, +S. memb k₁ k_₁ C memb memb + S out Solid Lines. There are two applications in the construction of Forrester diagrams where solid lines can be used to connect state variables. Please name them: a) b)gradient. This must be (21)_ to "pump" the potassium ions into the cell. transport; the cell expends (22)_ to provide energy Suddenly there is a tug at your foot. You look down to see your flipper engulfed by a rippling membrane. A leukocyte the size of a building quickly holds you against the wall of the blood vessel. The phospholipids of its cell membrane are pressed against your face mask. The cell is engulfing you, protecting the body from a foreign invader! Taking in a substance in this way is called (23) more specifically (24) diminishes, and you are inside the leukocyte, floating free in a membrane (25) if the substance is a solid particle. Suddenly the pressure enclosed bag, or Another sac is approaching; it is a (26) full of digestive enzymes. You manage to get your legs outside of the vacuole and move it back toward the inner surface of the cell membrane, As the vacuole joins with the cell membrane, you pull your feet freely and you glide away from the impatient cell,…Hydrolysis .? And what is endocytosis pinocytosis phagocytosis explain with reactions or diagram.
- Molecular Designs ...where molecules become real ™M wwwwwwwww Remove models from the Insert the GLUT carri plasma membrane model molecules so that there are more glucose molecules than intracellular g molecules (right photo). CONRAD Phospholipid Activity 1 Continued SANDER PHOSPHOLIPID & MEMBRANE TRANSPORT KIT Compare your structure to that of the other gre GLUT carrier protein membrane dmoleculardesigns.com g. Sketch the specific structural formula of the phospholipid model you synthesized in the space provided below. Label the hydrophilic and hydrophobic regions of your structure.solute. A A A "pong" E "ping" lipid bilayer A OUTSIDE electrochemical A gradient INSIDE A A carrier protein mediating facilitated diffusion This diagram gives an example of facilitated diffusion active transport coupled transport O simple diffusionBiology. Complete in 10 min please Plasma membranes in the cells of cold-blooded animals usually have a higher proportion of unsaturated fatty acids than homeothermic animals, why?.
- Integral membrane proteins... Choose all that could apply are bound to the membrane by only interacting with the phospholipid's polar head O contain many amino acids with hydrophobic residues O contain alpha-helical membrane spanning domains O would not be digested by trypsin in a permeabilized cell O interact with the phospholipid core of the phospholipid bilayerQIV. Determine if the level of organization is molecular or cellular. Tick True if molecular. Tick False if cellular. The membrane proteins are mostly glycoproteins in association with enzymes to hasten the biochemical process. Select one: O True O FalseThinking about cell membranes. a) The fatty acid tails of the phospholipids that make up cell membranes canbe either saturated or unsaturated. Which type of lipid will lead to a membranewith more mechanical strength? Explain your answer. b) One difference between bacterial and eukaryotic membranes is the presenceof cholesterol in eukaryotic membranes. What is the structure of cholesterol?Explain how adding cholesterol to a phospholipid membrane will affect thestability of the membrane. c) “Anammox” bacteria are unique in that they can perform anaerobic ammoniaoxidation, or the production of nitrogen gas from ammonia (Damasté et al. Nature2002, 419, 708.). Intermediates along this reaction pathway include hydrazine(N2H4) and hydroxylamine (NH2OH), both of which are extremely toxic to the cell.The ammonia oxidation reactions are believed to occur inside a membrane-bound structure within the cell called the “anammoxosome.” The structure of oneof the lipids of the anammoxosome is shown…