Even under isotonic conditions, there is a slow leakage of ions into animal cells. How does the plasma-membrane Na+/K+ ATPase enable animal cells to avoid osmotic lysis under isotonic conditions?
Q: What hormone directly opposes the actions ofnatriuretic hormones?a. reninb. nitric oxidec. dopamined...
A: Natriuretic hormones (NH) are compounds that act in an endocrine or paracrine fashion to modify extr...
Q: Why is the position of Cys 58 important in 3GRS(GLUTATHIONE REDUCTASE)? When Cys 58 is mutated to ...
A: Dear Students, I have downloaded the PDB ID 3GRS structure from https://www.rcsb.org/ This is the st...
Q: 1. What is the major role of magnesium in the body? 2. Give the different method of magnesium deter...
A: Magnesium is the fourth most abundant cation in the body. A balance of magnesium is maintained by re...
Q: 1. In zero order reaction, the reaction rate depends only on enzyme concentration. In first ord...
A: Hi! Thank you for the question, as per the honor code, we are allowed to answer the first q...
Q: The SARS-CoV-2 spike protein is heavily glycosylated. What are some of the monosaccharides found in ...
A: The spike (S) protein of SARS-CoV-2 mediates the virus binding to the human cells via its interactio...
Q: Explain the consequence of the following structures.
A: The given structure represents the phospholipid molecules in a lipid bilayer. Phospholipids are comp...
Q: What is glycemic index (GI)? Which food in the Philippine market has significant GI and list them wi...
A: GI is also known as Glycemic Index
Q: lanes for the blue and brown allele samples? (circle one) Brown sample: 0 1 Blue sample: 0 1 2 more ...
A: Agarose Gel electrophoresis is the molecular biology technique which helps in separation of gene se...
Q: 5. Which of the following names best describes the molecule? CH2OH C=0 но- H- H- -OH ČH,OH A. Pentos...
A: We'll answer the first question since the exact one wasn't specified. Please submit a new question s...
Q: Part I. Answer the following questions in 5 to 7 sentences. 1. What are the main biological function...
A: Starch cellulose and glycogen are different polysaccharides formed of different monomer(monosacchari...
Q: In a table, differentiate the three blood cells. Take note of their properties and functions, as wel...
A: Blood is the most important tissue of the body. Blood performs variety of different functions among ...
Q: In the first step of the citric acid cycle, an acetyl group from acetyl CoA reacts with oxaloacetate...
A: Citric acid cycle is one of the steps in aerobic oxidation of glucose. It occurs in mitochondrial ma...
Q: 5) In an experiment to investigate the inhibition of the enzyme-glucosidase the following data for t...
A: Lineweaver-Burk Plot: This plot is also called as double reciprocal plot as equation for the plot is...
Q: . The optimal conditions for salivary lysozyme (hydrolyzing glycoproteins of bacterial wall) are 37 ...
A: Lysozyme is a naturally occuring enzyme found in bodily secretion such as- tears,saliva and milk. L...
Q: Hello, please answer the questions 1, 2, 3, 4, 5, 6, and 7 directly 1. What is isoelectric precipit...
A: Hi, thank you for posting the question on Bartleby. As per the guidelines we can answer first three ...
Q: 5. A 0.01 M solution of HCI will not hurt your skin, yet a 0.1 M solution of HCI will leave a painfu...
A: Hydrochloric acid is a colorless and odorless solution of hydrogen chloride and water with a chemica...
Q: 1. Calculate Vmax and Km???
A: Enzymes are usually a protein molecules that catalyzes the biochemical reactions without being consu...
Q: how is phosphate utilized in humans?
A: Phosphate is derived from phosphoric acid. it is an anion, ester, or salt. A...
Q: 10. Given a DNA strand with nucleotide sequence 3' CCGTTACCGC 5', how many hydrogen bonds are formed...
A: The 2 strands in a DNA molecule are linked to each other via hydrogen bonds. Hydrogen bonds are form...
Q: Plant Pathology: Is Koch’s Postulate a relevant technique in diagnosing plant disease caused by abio...
A: Plant pathology is the branch of botany primarily deals with scientific study of diseases in plants ...
Q: 1. Explain the circadian rhythm and diurnal variation in the levels of serum phosphate. 2. What rel...
A: Circadian rhythm in simplest terms is the body clock that we follow. It is a result of complex time ...
Q: A. Determine the standard Gibbs free energy of the reaction. B. In dying E. coli cells, the concentr...
A: Hexokinase is a initial glycolysis enzyme and rate limiting enzyme, catalyzes the phosphorylation of...
Q: The regulation of Glutamine Synthetase (GS) in E.coli, a model for this highly conserved homodecamer...
A: Glutamine Synthetase plays a critical role in nitrogen metabolism. The enzyme in E. coli is regulate...
Q: Sort the molecules A-F into the natural products compound classes and describe & name the natural pr...
A: Nature is full of diverse kind of organic compound. Many of them are of high pharmacological, biolog...
Q: Explain the importance of adding TE Buffer as the final solution to isolate the concentrated DNA.
A: DNA isolation is a process of extracting nuclear material from a tissue sample. The tissue sample is...
Q: 8. Increasing the number of these molecules in the cell membrane would increase the permeability of ...
A: Given are different biochemistry related statements and they tell about different molecules of it.
Q: 1. The diagram shows a structure of a lipid molecule. What is the name of this type of lipid? b. How...
A: The lipid molecule consists of 3 fatty acids combined to the glycerol molecule through the formation...
Q: The free energy-requiring step in the synthesis of ATP is not the formation of ATP from ADP and Pi (...
A: In cell ATP is synthesize by membrane bond ATP-synthase machinery in mitochondria called F0F1 ATP sy...
Q: What information do you get from these controls to give you confidence in your results? How does gro...
A: Microorganism are small organism which we can observed through the microscope. It is usually used as...
Q: If the order for the electron transport chain starting from NADH to Oxygen is this: NADH-->Flavin mo...
A: Aerobic respiration refers to oxidation of glucose to carbon dioxide and water generating energy. Th...
Q: What are the main structural features of the polysaccharides starch? How do this aids in its functio...
A: Plants store glucose as the polysaccharide starch. Starch can be separated into two fractions - amy...
Q: Determine whether the following reactions will be spontaneous under standard biochemical conditions....
A: An exergonic reaction is one in which the energy level of the products is lower than the energy leve...
Q: 2. which of the following is the reason why hemolysis shoule be avoided? a. enzymes have lower con...
A: Q2. Hemolysis is defined as the rupture of erythrocyte membranes, which results in the release of ha...
Q: Describe the biological importance of blood
A: Blood is a fluid connective tissue composed of plasma and formed elements. It constitutes 20-30% of ...
Q: 1. Draw the tetrapeptide Met-Ala-Thr-Thr at a ph of 7? 2. Draw the tetrapeptide Met-Ala-Thr-Thr at...
A: The pKa values of amino acid side chains determines the pH-dependent net charge of an amino acid in ...
Q: Please help me with this. *Also Please Note: This is ONE problem set and according to the policy, a...
A: Note : Hi ! Thank you for the question. We are authorized to answer three subparts at a time. Since ...
Q: 1. What are the main biological functions of polysaccharides?
A: Polysaccharides are known to be one of the most abundant carbohydrates. They are essentially long-ch...
Q: Explain the rationale behind the separation of different cellular components using centrifuge.
A: Centrifugation: Mechanical separation process which uses centrifugal force to separate components ba...
Q: Identify the principles of the lypophilization process and list down the precautions and limitations...
A: Lyophilization is a messy freeze-drying process that eliminates water from a product after it has be...
Q: There is only one possible sequence of amino acids when deduced form a given nucleotides. But multip...
A: Nucleotide refer to a biomolecule composed of phosphate, pentose sugar and nitrogenous base. These a...
Q: Imagine an allosteric enzyme is modified so that it exists 100% in the R state or 100% in the T stat...
A: Based on the substrate concentration, an allosteric enzyme at a specific instance can be said to be ...
Q: Crystal: Calcium oxalate or calcium phosphate in kidney stones If it is something harmful, what can...
A: A kidney stone is a solid, marble-like piece of material that forms in one or both kidneys. It forms...
Q: Question:- diagram, use D with arrows to show how disaccharides like lactose and sucrose get from f...
A: The following diagram depicts the digestion of disaccharides from food in the small intestine:
Q: Trivalent and pentavalent arsenic produce different effects on cells, yet there is little distinctio...
A: Arsenic is usually associated with arsenic poisoning. Despite its toxicity arsenic has been used ben...
Q: UDP , gemcitabine was shown to undergo two successive phosphorylations at . The product, gemcitabine...
A: GEMCITABINE is a chemotherapy medication, used to treat cancer such as breast cancer, testicular can...
Q: a) What was the full peptide sequence before degradation? b) Paula thought she forgot to treat her p...
A: Edmans degradation is a method of sequencing the amino acids in the peptide. In this first step meth...
Q: Which of the alternatives below indicates techniques used both to purify and to concentrate proteins...
A: Proteins are polymers of amino acids linked by peptide bond and it is one of the important biomolecu...
Q: III. Convert the ff. cyclic sugar structures in Fischer formula into their corresponding Haworth for...
A: The structures are as follows:
Q: Which of the following will occur if there is an increase in enzyme or substrate concentration? in...
A: Enzymes increase the rate of biochemical reactions by decreasing the activation energy. Activation e...
Q: You have obtained experimental kinetic data for two versions of the same enzyme, a wild‑type and a m...
A: Michaelis-Mention constant (Km) or equilibrium constant for the dissociation of the E-S complex is e...
Even under isotonic conditions, there is a slow leakage of ions into animal cells. How does the plasma-membrane Na+/K+ ATPase enable animal cells to avoid osmotic lysis under isotonic conditions?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Are symporters and antiporters always involved in active transport? Can't both solutes move in the same direction and be moving down their concentration gradient (and the same with antiporters)?What will happen to the cell volume and solute concentratuon if a cell that is normally in osmotic equilibrium was transferred to a more diluted concentration?Define osmosis; characterize isotonic, hypertonic and hypotonic solutions and what happens to cells, osmotically in each of these environments. State which tonicity is optimal for animal cells and why.
- If you made a hematocrit in two tubes. Tube A is made of 0.60M NaCl, and Tube B is made of 1.00M of NaCl, describe how the cell would respond in these solutions? Which would have a higher rate of osmosis? If the cell is permeable to NaCl, which would have a higher rate of diffusion?A migrating fish would be rapidly transferring substances across cell membranes. These substances would include sodium, water, carbon dioxide, oxygen, and steroids. Which of those would be most likely to be moved via active transport? Why? What is a transmembrane gradient? What is an electrochemical gradient?During an investigation on membrane transport, a researcher exposed bacterial cells to different concentrations of two different solutes: A and B. The rate of transport of each solute into cells isrepresented in the graphSolute ASolute BSolute ConcentrationWhich of the following best explains the greater rate of transport for solute A than for solute B at higher solute concentrations?A Solute A is being transported by simple diffusion, which does not rely on membrane proteins to control the rate of transportSolute A is being transported by active transport, which uses ATP and has higher rates of transport than passive transportSolute A is being transported by facilitated diffusion, which uses membrane proteins to increase the rate of transportRate of Transport
- Solution A is hyperosmotic to solution B. If solution A is separatedfrom solution B by a selectively permeable membrane, does watermove from solution A into solution B, or vice versa? ExplainFor each type of membrane transport, know the following:– Is a transporter protein required? If so, what type?– Is there an energy requirement, and if so, what is the energy source?– What is the relative rate of solute transport based on molecule type? On concentration gradient?– What are examples of the types of solutes transported by carriers and channels?If the percent difference is a positive number, what does this tell us about the movement of water across the membrane?
- How does Na+/K+ ATPase/Pump promote osmosis across plasma membrane? How does it establish the basal metabolic rate? Lastly, what does it mean when the pump self-phosphorylates during transportation?Here is a chloride cell in the gill epithelium of a fish. For reference, NKA = Na+/K+ ATPaseNKCC = Na+/K+/Cl- cotransporter. CFTR allows for movement of Cl- from inside the cell out into the water down a concentration gradient. Which of the following would be true of CFTR? A. It is a primary active transporter. B. It is a symporter. C. It is a secondary active transporter. D. It is a channel that allows for facilitated diffusion.As a cell grows its plasma membrane expands. Does this involve endocytosis or exocytosis? ATP is not directly involved in the functioning of a co-transporter. Why, then, is co-transport considered active transport?