6. Which of the following process are mainly enthalpy driven and which are mainly entropy driven? a. Protein folding S b. Two a-helices bind each other using ionic interactions H c. Self assembly of a membrane bilayer S d. Photosynthesis e. Binding of O₂ to hemoglobin H
Q: Chymotrypsin, trypsin, and elastase are digestive enzymes called serine proteases. The serine…
A: Aminoacids are classified based on the nature of their side chain. They are Acidic aminoacids :…
Q: Primer pairs of homo sapiens isolate breast cancer brca1 gene. Select the best primer pair then give…
A: Primers are used in PCR techniques which enable us to generate several copies of a desired DNA…
Q: Fill in the blanks below using the correct molecule from above: 4. I provide instructions for…
A: Molecules of life are the building blocks of all living organisms. These molecules are essential for…
Q: Can you show the math of the ATP gain in the steps?
A: Under aerobic conditions, glucose will be oxidised completely via the glycolysis + TCA cycle + ETC…
Q: Draw a two-stranded anti-parallel -sheet where each strand is 5 amino acids long. Use “R” to show…
A: The β-sheet is one of the most common secondary structures in proteins. The β-pleated sheets are…
Q: 8. The human diet includes "non-digestible" polysaccharides, or fiber, that can actually be digested…
A: Hydrolases are a class of enzymes that catalyze the hydrolysis of chemical bonds through the…
Q: What is the role of ATP in cellular metabolism?
A: ATP is the energy currency the cell spends on metabolic transactions. ATP is a nucleotide, composed…
Q: Molecular diameters of proteins IgG and TNFα are 11.2 nm and 4.4 nm, respectively. The diffusion…
A: Stokes-Einstein equation is the relationship between diameter and diffusion coefficient of a…
Q: D 1.0. 0.5- O 6. Answer the questions below about hemoglobin and myoglobin. a. Sketch and label the…
A: The binding curve describes the relationship between the amount of oxygen bound to a molecule of…
Q: Differentiate these two Insulin of Homo Sapiens First photo: gor4 prediction Second photo: phd…
A: Preproinsulin is composed of 110 amino acids, which becomes active by the removal of signal peptide…
Q: Please review the curve below. Please identify and discuss the activity shown by the curve. V S
A: This is a rate of reaction (V0) Vs substrate concentration (S) graph. This kinds of graphs generally…
Q: What is Vax for this reaction? / Wat is Vmax vir hierdie reaksie? (b) Why is v constant above…
A: (a) To Find: Vmax for this reaction. We need to identify the highest initial rate observed in the…
Q: When the amino acid alanine (R-group is CH3) is added to a solution with a pH of 7.3, alanine…
A: Introduction: The answer provides an explanation of how the amino acid alanine (with a CH3 side…
Q: What is the metabolic mechanism of diabetes? Cite reference/s
A: Diabetes mellitus is a chronic metabolic disorder with complex pathogenesis that is characterized by…
Q: A molecule with the formula C16H30015 is a O hydrocarbon protein O nucleic acid O lipid O…
A: Any living cell is made up of biomolecules. These biomolecules can be classified into the following…
Q: 1. What are the major differences in both meals? 2. Is the turkey sub healthier when looking at the…
A: The macromolecules present in the turkey sub and burger are: Turkey Sub: 47 grams of carbohydrates,…
Q: 1.0.1 mL of a protein solution of concentration of 11 mg/mL was diluted to a total volume of 4.0 mL…
A: The four types of biological macromolecules are nucleic acids proteins lipids and carbohydrates.…
Q: Write the names and structure of basic amino acids.
A: Introduction: In this response, I provided the names and structures of basic amino acids. Amino…
Q: Name the enzyme that catalyzes the conversion of succinate to fumarate
A: The conversion of succinate to fumarate is a step in the Tricarboxylic acid cycle (TCA) cycle. The…
Q: discuss the difference between ‘immunoreactivity’ and ‘bioactivity’.
A: Immunoreactivity and bioactivity are two terms used in immunology and biochemistry to describe…
Q: CARBOHYDRATES CONCEPT MAP
A: A concept map is a diagrammatic representation of a topic using arrows and terms that describe that…
Q: The pH of a solution is determined by concentration of salt ⓇB relative concentration of acids and…
A: The correct answer is B - relative concentration of acids and bases. pH is a measure of the acidity…
Q: Which amino acids are zwitterionic? Select the correct response(s): or NH3 H3N sse NH₂ H₂N. H₂C NH3…
A: Amino acids function as building blocks of proteins . They are joined by peptide bonds to form…
Q: A woman of 40 years old was found to have an increased basal metabolism. Explain the excess of which…
A: Basal metabolism refers to the amount of energy the body uses at rest to carry out basic…
Q: Which of the following phospholipids islocalized to a greater extent in the outerleaflet of the…
A: (A) Choline phosphoglycerides are localized to a greater extent in the outer leaflet of the membrane…
Q: Polyprotic acids such as H3PO4, can act as acid-base buffers ℗ only in combination with polyprotic…
A: D. at pH values around any of their pKa's. Polyprotic acids are acids that can donate more than one…
Q: Allosteric inhibitors of hemoglobin will decrease enzyme activity (oxygen binding) through which of…
A: Allosteric inhibitors of hemoglobin are molecules that bind to a specific site on the protein and…
Q: I need hemp measurements A and B please
A: Polyacrylamide gel electrophoresis (PAGE) is a technique for separating molecules depending on their…
Q: Explain the role/importance of the localization of GTPase-activating protein (Ran-GAP) in BOTH…
A: The Ran protein is a member of the Ras superfamily of small GTPases. Ran regulates nucleocytoplasmic…
Q: What types of bonds are important for each level of protens
A: Protein structure have 4 levels. They are; primary, secondary , tertiary and quaternary.
Q: Q. 5. Give one example each of di-, tri- and tetra-saccharides.
A: A disaccharide is a complex carbohydrate that upon hydrolysis yields two molecules of same or…
Q: Who deduced the double-helical structure of DNA? a) Watson and Francis Crick b) Frederick Sanger c)…
A: Watson and Francis Crick are credited with deducing the double-helical structure of DNA in 1953.…
Q: State and describe the three different types of inhibitors. short answer please.
A: Enzymes are highly substrate specific. Though the activity of the enzymes can be altered using…
Q: Which of the following is a function of chaperone protein? a) It provides a template for how the…
A: Chaperone proteins, also known as molecular chaperones or simply chaperones, are a class of proteins…
Q: Describe the role of pH in the lysosomal pathway, starting in the ER and ending with a functioning…
A: Lysosome are essential cellular organelles of eukaryotic cells. The lysosomes are inovlved in the…
Q: 1 The Asp residue with a pka = 6 is found in the active site of an enzyme. This residue acts as an…
A: Enzymes are biochemical catalysts that increase the rate of biological reactions. Most enzymes are…
Q: 45. What is a term for an assembly of antenna pigments? a) thylakoid b) granum c) light-harvesting…
A: Since you have posted multiple MCQs, we will provide the solutiononly to the first three MCQs as per…
Q: Fill in the blanks below using the correct molecule from above A I can combine to form starch…
A: Biomolecules are molecules that are present in living organisms. Biomolecules are broadly classified…
Q: which can initially be either depolarizing or hyperpolarizing?
A: The correct answer is graded potential, as graded potentials can initially be either depolarizing or…
Q: Which of the following is NOT a cofactor for the pyruvate dehydrogenase complex? Lipoate COA FAD…
A: The pyruvate formed by the process of glycolysis is converted into acetyl-CoA. The reaction is…
Q: I still struggle to understand the link between beta-oxidation and ketogenesis pathways. So under…
A: Introduction: The production of ketone bodies is a metabolic process that occurs under conditions…
Q: Glycogen phosphorylase in the liver... A. is the same enzyme that acts in the muscle. B. is mostly…
A: Glycogen phosphorylase, glycogen synthase, and protein phosphatase 1 (PP1) are all enzymes involved…
Q: what happens when there is a defiency of simple dietary carbohydrates in the body? what happens if…
A: Dietary carbohydrates are one of the three macronutrients found in food, along with protein and fat.…
Q: Arrangement of nucleotides in DNA can be seen using which of the following instruments? a) Electron…
A: X-Ray crystallography is a powerful technique used to determine the three-dimensional structure of…
Q: Define proteins. Write their functions.
A: Introduction: Proteins are complex macromolecules composed of amino acids and play a critical role…
Q: 4. On a TLC plate containing silica gel, which compound will have the largest R value when ethyl…
A: Rf value, also known as retention factor value, is a chromatographic measure that describes the…
Q: Can you please help me to make this table profesional, I need two table the other which will be…
A: Proteins are polymers of amino acids linked by peptide/amide bonds by the condensation reaction…
Q: a protease that cleave peptide bonds adjacent to aspartate and glutamate would likely have an s1…
A: This statement is not entirely accurate. Proteases that cleave peptide bonds adjacent to aspartate…
Q: what can you conclude about the effect of enzyme concentration on reaction rate? Explain
A: Many biochemical reactions catalyzed by enzymes produces gases as products that are not very soluble…
Q: PCR
A: The polymerase chain reaction (PCR) is a powerful molecular biology technique for amplifying DNA…
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
- 6. Which diagram shows the appearance of a cell with an original Y of -1.2 kPa, after being placed in a solution as shown? A B C D water potential (Y) of external solution / kPa -06 -1-2 -00 -1-5 7. Which pair of factors is inversely proportional to the rate of diffusion? A. Concentration gradient and surface area over which diffusion occurs. B. Distance over which diffusion occurs and size of diffusion molecule. C. Size of diffusion molecule and concentration gradient. D. Surface area over which diffusion occurs and distance over which diffusion occurs. 8. The diagram shows two molecules of glucose. Four possible bonding positions are labelled p, q, r and s; and t, u, v and w. CH,OH CH,OH ОН OH Но ОН Но OH S w u OH OH V When these two molecules condense to form glycogen, where could bonds form? A. p-u or p – v B. p- u or q - w C. p – v or q – w D. p – w or v - w1. Ms. Sassa, a biology professor, wanted to demonstrate to her students the applicability of a dialyzing membrane (DM) as a model for the cell membrane by enclosing an aqueous solution in a DM bag and immersing in a beaker containing a different solution. Substances available which are permeable to the DM include 0.02 M NaCl, 0.03 M glucose, and 0.01 M glucose. The only substance available which is completely impermeable to the DM is the 0.01 M lactose. Using the substances given and materials such as a beaker, stirring rod, and string, draw ONLY ONE set- up that can be demonstrated by Ms. Sassa that will satisfy ALL of the following conditions: a. No solute will exhibit a net diffusion out of the cell. b. Glucose will exhibit a net diffusion into the cell. c. NaCl will exhibit a zero net movement. d. No net movement of lactose from the inside to outside of the cell. Make sure to label properly the substance inside the beaker and inside the DM bag (1.)6. For each of the following scenarios described where a molecule or ion is moving from one side of a membrane to the other, select the method by which the molecule or ion is moving. Each answer can be used more than once, or not at all. a. Simple Diffusion b. Facilitated diffusion by a channel protein c. Facilitated diffusion by a carrier/transport protein d. Active transport by a pump e. Could be B or C, not enough information is given . Chloride (Cl-) is an ion that is essential for neuronal signaling and regulating action potential/excitability in neurons. When chloride receptors are opened with a neurotransmitter, Cl- flows from high concentration in the synapse (outside of the cell) to low concentration in the neuron cell. Oxygen gas must cross from the bloodstream into cells and it has the chemical structure O=O. Glucose is a polar molecule that moves from the small intestine, where it is found high concentra to inside the cells that line the digestive tract, where it is found…
- 16. According to the fluid mosaic model of cell membranes, which of the following is a true statement about membrane phospholipids? A. They can move laterally along the plane of the membrane. 8. They frequently flip-flop from one side of the membrane to the other. C. They occur in an uninterrupted bilayer, with membrane proteins restricted to the surface of the membrane. 17 D. They are free to depart from the membrane and dissolve in the surrounding solution. E. They have hydrophilic tails in the interior of the membrane.16. Lare specialized sphingolipid and cholesterol enriched microdomains within cell membrane. a. G proteins b. cytoskeletal proteins c. lipid rafts d. collagen 17. A glycoprotein within a plasma membrane has which of the following characteristics? a. Attaches to cytoskeletal proteins. b. Oriented towards the environment. c. Peripherally attached to the membrane. d. Ability to undergo flexion.1.There are different processes for transport of molecules of ions across cell membranes. Explain briefly each process a. Simples diffusion b. Facilitated diffusion via carrier proteins c. Facilitated diffusion via ion channels d. Primary active transport e. Secondary active transport f. Endocvtosis g. Exocytosis h. Transcytosis 2. List four Physical factors that affect the rate of diffusion and how they will affect it. 3. What kind of molecules can pass through the plasma membrane of the cells through simple diffusion? Give brief discussion. 4. List the three main parts of a cell and explain their functions. 5. Define an organelle. Which organelles are surrounded by a membrane and which are not? 6. What is the key difference between passive and active process? 7. Why RNA transcription can still serve the needs of the cell even if its operation is slow compared to DNA?
- 6. Sort the following molecules based on their rate of diffusion across the phospholipid bilayer in the absence of any transporter, from highest (1) to lowest (4). Glucose 0₂ H₂O Protein kinase A1. Working as an engineer in the R&D section of a biotech industry, you are asked to select a membrane to concentrate a solution containing a protein with a molecular weight of 200 kDa; Fortunately, it has three types of membrane in the cellar: one for MF, one for UF and one for RO. Which one would you choose to perform the required service? Could you establish some characteristics of the chosen membrane?20. How do molecules of cholesterol affect the structure of cell membranes? 21. Identify the type of transport described by each of the following: a. A molecule moves through a protein channel. b. 02 moves into the cell from a higher concentration outside the cell
- 1. Explain why phosphoglycerides are found in lipid bilayer 2. Enumerate and describe the mechanisms of transport across a membrane1.Which of the following is TRUE about the movement of water across membranes? a.Water migrates to an area of low salt concentration. b.Water migrates to an area with high lipid content c.Water migrates to an area with high salt concentration. d.Water migrates into and out of the cell at equal rates. 2. Which of the following molecules/ material can freely pass through the cell membrane's phospholipids? a.carbon dioxide b.lipids c.oxygen moleculeWhat major type of molecule contributes to the formation of the cell membrane and what biochemical properties of this molecule promotes the formation of the membrane? What effect allows this type of molecule to come together to form a bilayer and explain how the effect works? A▾ B I I e 2 2