Increasing the UREA concentration 2. Increasing the UREASE concentration 3. Increasing the temperature from its optimum value to a value 10degree higher than this value 4. Lowering the pH from the optimum value of 5.0 to a value of 3.0
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Describe the effect of the following changes would have on the
1. Increasing the UREA concentration
2. Increasing the UREASE concentration
3. Increasing the temperature from its optimum value to a value 10degree higher than this value
4. Lowering the pH from the optimum value of 5.0 to a value of 3.0
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- Hemodialysis is a process by which a machine is used to filter urea and other waste products from an individual’s blood when the kidneys fail. The concentration of urea in the blood is often modeled as exponential decay by the following function: −Kt c(t)=c0e V where K is the mass transfer coefficient (in mL/min), c(t) is the urea concentration in the blood at time t (in mg/mL) and V is the blood volume., and c0 is the initial concentration at time t = 0. Answer the following questions:(a) How long should a patient be put on dialysis to reduce the blood urea concentration from an initial value of 1.65 mg/mL to 0.60 mg/mL, given that K = 340 mL/min and V = 32, 941 mL? b) Derive a general formula for the dialysis time T , in terms of the initial urea concentration c0 and he target urea concentration c (T ) (c) The quantity Kt, is sometimes used as a measure of dialysis treatment adequacy. What are its V units and explain what does this quantity represent?One person consumed 84 g of protein in 24 -h, his urine analysis has shown that he excreted 12g of nitrogen as urea, calculate the nitrogen balance for this person and mention the main situations that explain this balance.In considering the rate of reaction for urea conversion, the enzyme is ____________ the substrate is ______________ and the rpoducts are ____________ and ___________.
- Are Xanthoproteic and MillonNasse tests satisfactory for use in the urinary examination for protein? Why? Which test can be used to show up to what stage the hydrolysis of a protein proceeds? Why?Why is the urea cycle important? Give typing answer with explanation and conclusionThe following molecule is required for the activation of uridylytransferase A. Glycine B. Adenylytransferase C. ATP D. PII
- Identify which of the following molecules yields uric acid when degraded: a. DNA b. FAD c. CTP d. PRPP e. β-alanine f. urea g. NAD+Which of the following statements regarding the urea cycle is true? (A) Fumarate acts as a connecting link between urea cycle and the CAC.(B) The urea cycle occurs solely in the mitochondria.(C) Citrulline and arginine reacts to form argininosuccinate.(D) Ornithine formed in the last reaction of the urea cycle is excreted from the body along with urea.(E) The purpose of the urea cycle is to produce energy (4 ATP per ammonia that enters) for the liver.Proteasas are enzymes that break down proteins. Gastric proteasas are found in the stomach; intestinal proteases are found in the small intestine. Estimate the optimum pH for these two enzymes and identify as acidic or basic: Gastric proteases: pH= ____; acidic or basic Intestinal proteases activity: pH= ____; acidic or basic
- Estimate the optimum pH for the digestive enzyme trypsin, which hydrolyzes proteins in the small intestines, from the following graph.Based on the pka values of the amino acids, is there any amino acid that could serve as a buffer at pH 12? If so, which one? State the reason.What is the concentration in PPM of sodium fluoride in tap water has been fluoridated by the addition of 32 mg of NaF for every 20 kg of solution? step by step please