A Benedict's test: (+) Seliwanoff's test: (-) Bial's-Orcinol test: (+) TLC Profile rib gal gic A B 0 B fru man xyl C Fehling's test: (+) Seliwanoff's test: (-) Bial's-Orcinol test: (-) Osazone test: needle- like crystals, formed 5 mins. a1,4-endoglycosidase treatment C conc. HNO3: rhombic crystals Osazone test: broad, flat crystals, formed 15 mins. Fehling's test: (+) C 2N HCI, 100°C, 60 mins. Benedict's test (-) Fehling's test: (+) Seliwanoff's test: (+) Bial's-Orcinol test: (-) Osazone test: needle- like crystals, formed 2 mins.
Q: Draw the structure(s) of the following amino acids (Asp, Lys, Phe, and Val) at pH 3.5, pH 6.5, and…
A: Amino acids are biomolecules that have an ionisable amino group and an ionisable carboxyl group…
Q: Write the products of the oxidation and reduction of D-mannose. HO HO H H O || C-H H I -H -ОН -ОН…
A:
Q: Why doesn't the enzyme bromelain digest the proteins in your stomach when you eat fresh pineapple?
A: Enzymes are high molecular weight protein molecules that catalyse biochemical reactions. The…
Q: The side chain of asparagine contains: OA) a hydroxyl group OB) an amine group OC) a carboxyl group…
A: Proteins are composed of amino acids, which are bound together by peptide linkage. Amino acids…
Q: A peptide has the following amino acid composition: 2 Met, 2 Phe, 2 Glu, 1 Arg, 1 Lys, 1 Val, 1 Leu,…
A: Recall that: Amino acid sequences are written with N-terminal amino acid on the left and C-terminal…
Q: Which statements best describe serotonin? Select the correct response(s): It is essential for…
A: Serotonin is a neurotransmitter that is important for inducing sleep, for modulation of memory,…
Q: Adding a glucose unit to the growing glycogen chain O Requires the production of 1 ATP molecule O…
A: After a meal, there is a surplus supply of glucose in the blood. this causes the pancreas to secrete…
Q: Among the given statements, which are characteristics of plant cells? Select the correct…
A: Plant cell has Cell wall as the outermost layer. Cell wall being the outermost layer surrounds the…
Q: Lipids supply more than twice as many calories as carbohydrates. Based on the results of the Sudan…
A: Sudan III is a dye that is used to stain lipids. When Sudan reagent is added to a solution…
Q: Calculate the net charge on the following tripeptides at pH 5.0: (a) Leu-His-Asp [0] (b)…
A: Recall that: Amino acid sequences are written with N-terminal amino acid on the left and C-terminal…
Q: 5) Both DNA polymerase (any DNA polymerase) and ligase catalyze the formation of a bond between…
A: DNA Polymerase and Ligase are the two classes of enzymes that take part in DNA replication and…
Q: Discuss the factors affecting enzyme activity
A: Enzymes are high molecular weight protein molecules that catalyse biochemical reactions. The…
Q: Which one of the following amino acids is phosphorylated during the process of promoter clearance by…
A: In eukaryotes RNA Polymerase II is responsible for the synthesis of mRNA. The largest subunit of Pol…
Q: n which of the test tubes would you say hydrolysis has taken place in this experiment? Why?
A: Enzymes are large molecular weight proteins that catalyse biochemical reactions. The substrate bind…
Q: Question - is if the cells in our bodies were to convert the required energy into our food substance…
A: Energy must be supplied continuously for living things to exist. This energy is employed in part to…
Q: Problem 1: Calculate the hydrolysis of ATP at pH 7 at 37°C under steady state conditions in which…
A: In a general reaction such as: aA + bB ⇌ cC + dD At equilibrium (steady state), the concentration of…
Q: b) It's said that secondary structures form because of intra- and intermolecular hydrogen bonding…
A: Examples of secondary structures are alpha-helices and beta-sheets. The primary structure of a…
Q: Select the correct response:
A: Tyrosine gives rise to catecholamines which includes dopamine, norepinephrine, and epinephrine.
Q: Please write down the DNA sequence inferred from the below DNA gel. Shown are the products of a…
A: DNA is the genetic material in most living organisms. The information in a DNA molecule is encoded…
Q: Calculate for the initial pH, final pH, and buffer capacity if 0.1 mole of H+ is added to 1L of…
A: The reaction that would take place when we add H+ (here H+ is the acid added) into the given buffer…
Q: 7. H 1 H-C -OH H-C-OH 1 H -C 8. H 9. НО I 1 H J=D 0=)) с HIV-H OH HH -C-C-H I OH OH F-DIE-DI - CH…
A: 7. Chemical formula for structure number 7. = C4H8O4 or C4(H2O)4. Yes, this structure is a…
Q: In the free energy diagram below, molecule A (with energy x) is converted to molecule B (with energy…
A: Activation energy for a reaction is the minimum amount of extra energy that is necessary for the…
Q: Η Η Η Η Η ΤΙΤΙΤ H-C-C-C-CC-G | | | | | Η Η Η Η Η I ОН
A: A functional groups are is a group of atoms that bonds within a molecule and is responsible for the…
Q: Which pathways use substrate-level phosphorylation and which use oxidative phosphorylation?
A: Substrate-level phosphorylation is a metabolic process that involves the direct transfer of a…
Q: ĭ HO O-C-R' O=O=O=O -O-C-R" -O-C-R"" A -P=00=0 HII -N-C-R" OH E O-sugar O || -0-C-R" -NH3+ -(CH₂)12…
A: Lipids are a chemically diverse group of biomolecules that have two things in common: low…
Q: In a hydrogen fuel cell, hydrogen gas and oxygen gas are combined to form water. Write the balanced…
A: Water molecule is a compound formed from hydrogen and oxygen gas. It has two Hydrogen atoms and one…
Q: Create your OWN diagram to show the lock-and-key theory of enzyme activity.
A: There are two theories describing enzyme activity. They are: 1) Lock and Key Theory and 2) Induced…
Q: Electron Transport Chain, what purpose does it serve in Catabolic pathway?
A: -Anabolism and catabolism are the two main components of metabolism. - The metabolic process known…
Q: Casein is a biological polymer—what are the monomers of this polymer? (General term)
A: Polymers are high molecular weight compounds made up of smaller molecules linked in a chain-like…
Q: What are the roles of the other enzymes involved in replication and why they're necessary ?
A: Before cells divide, DNA replication must occur. DNA replication is the complete, faithful copying…
Q: In gluconeogenesis, how is glucose-6-phosphate converted to glucose? is converted to glucose by…
A: Gluconeogenesis is a metabolic process that converts non-carbohydrate carbon substrates such…
Q: 5-45 A sample of an unknown peptide was divided into two aliquots, acid. One aliquot was treated…
A: Edman degradation method is used for the sequencing of polypeptide chains. For larger proteins the…
Q: The gels we will be using for electrophoresis during the next lab consist of 1% agarose. Suppose you…
A: There are different ways to denote the concentration of a solution. Per cent (w/v) means there is 1…
Q: 2. What sample shows a positive result with the Molisch Test? Why did this sample give a positive…
A: Note: Please note that we are supposed to give answer only for the first question. so providing…
Q: Kwon Soon-young was asked by his CHEM 160.1 lab instructor to determine the isoelectric pH of an…
A: Proteins are composed of twenty standard amino acids attached together via peptide bonds. These…
Q: Pyruvate can be converted to glucose via gluconeogenesis, or it can be oxidized to acetyl-CoA for…
A: Glycolysis is the collection of 10 enzymatically catalysed reactions that oxidises a 1 molecule of…
Q: draw all the structures of the tribasic amino acid lysine involved in the equilibrium reactions that…
A: The proteins are composed of 20 naturally occurring amino acids. The amino acids can be classified…
Q: Compare and contrast the principle behind DNA migration in agarose gel electrophoresis from that of…
A: Electrophoresis is a technique that involves the migration of charged molecules under the influence…
Q: 10. The final electron acceptor in the electron transport chain is Complex IV. T F
A: The final stage of aerobic respiration is the electron transport chain (ETC), which is also the sole…
Q: 2. Biuret Test Color of 3% CuSO4 solution: Sample casein alanine albumin gelatin distilled water 3.…
A: Proteins are large molecules made up of amino acid residues linked via a peptide bond. Amino Acids…
Q: The AG of the reaction C6H12O6 +602 --> 6CO2 + 6H₂O is -686 kcal/mol glucose The oxidation of…
A: For biological systems, free energy (G), enthalpy (H) and entropy (S) are related as : ∆G = ∆H - T∆S…
Q: In the absence of oxygen is glucose the major source of ATP?
A: It is generally agreed upon that ATP serves as the mediator of energy transfer between anabolism and…
Q: 6. What term is used to describe reactions that generate metabolic intermediates of a pathway? A.…
A: The reactions that generate metabolic intermediates of a pathway is termed as - Answer- B.…
Q: Which of the following is NOT a naturally-occurring amino acid? A) B) C) D) H₂NCH-COO CH3 H₂NCH-COO…
A: The proteins are composed of twenty naturally occurring amino acids. These amino acids are alpha…
Q: 1. What color change do you observe in Part B of the experiment? In which of the test tubes did…
A: Proteins are made up of amino acid residues linked via a peptide bond. A peptide bond between two…
Q: Does myoglobin have the same high affinity for CO as hemoglobin?
A: Hemoglobin is a multimeric (multi-subunit) protein that transports oxygen from lungs to tissues and…
Q: Question 11 of 25 Among the given statements, which are characteristics of plant cells? Select the…
A: Osmosis is the process of net movement of water across a semipermeable membrane This transport…
Q: 10. CH OH HO -0-3 OH C I II. Cд H_Os 12. С 8 Hile O_ 13. СА Н 14. C Hio Os 15. C_H_D- 16. C_H 1 20 -…
A: Carbohydrates are polyhydroxy organic compounds with a general formula of (CH2O)x. Carbohydrates can…
Q: Which of the following are true about oxaloacetate? It can cross mitochondrial membranes It is an…
A: Glycolysis is a pathway which breaks down glucose into two three-carbon compounds and produces…
Q: The pKa of the Histidine side chain is 6.0. When Histidine is dissolved in a buffer with pH 5.0, the…
A: A molecule's level of acidity is indicated by the pKa value. A proton's grip on a Bronsted acid is…
1. What is the identity of the monosaccharide components of the tetrasaccharide:
A.
B.
C.
D.
2. Give the Haworth structure of the tetrasaccharide
Step by step
Solved in 3 steps
- Cyanocobalamin injection to start on Sunday 1000 mcg intramuscularly once a day for 7 days, 1000 mcg intramuscularly once every other day for 7 days, then once every 4 days for another 2 to 3 weeks is recommended. How many mcg are required for a 4 week treatment?A 70-year-old woman visited her GP complaining of a sore throat, a fever (38.5°C), and recent loss of appetite and tiredness. She reported dark urine and her stools were unusually pale. There was no history of foreign travel and she stated that she abstained from alcohol. No other medication reported. Test Unit Result Reference range Bilirubin µmol/L 68 ≤17 Aspartate aminotransferase (AST) U/L 302 ≤30 Alanine aminotransferase (ALT) U/L 395 ≤37 Alkaline phosphatase (ALP) U/L 295 ≤150 Albumin g/L 39 35-45 Gamma-glutamyltranspeptidase U/L 298 ≤55 Prothrombin time s 12 11-13 Haematology Lymphocytosis noted on blood film Further tests showed positivity for IgM anti-EBVb) Relate these advantages to explain why radiopharmaceuticals are often used in the treatment of i) prostate cancer (brachytherapy) ii) thyroid cancer (iodine-131 treatment) [Suggested word count 2201
- What is the clinical significance of ESR determination? Differentiate Wintrobe from Westergreen regarding accuracy of the test in a tabulated order. NOTE: Kindly asnwer all the questions. Thank you!Lung Cancer Patient Whats the use of the given medications below: ● Cisplatin100 mg/m2 IV q4 weeks● Trametinib Dimethyl Sulfoxide 2mg/tab 1 tablet OD● Roflumilast 500 mcg PO● Spiriva Respimat: 5 mcg (2 actuations; 2.5 mcg/actuation)● Budesonide 1 neb q6hr● Hydrochlorothiazide 25 mg tab PO OD● Levothyroxine 175 mcg PO OD● Hydralazine 50 mg tab PO TID● Metformin 500 mg tab PO BIDStudy the given structures below. Which of the following are epimers? H. H- HO- но H- H- он но H- H- OH HO- но- но H- но- -- но -H но- H- но- HHOH CH;OH H- O- -OH- H- OH CH;OH ČH;OH CHOH D-Gul D-Ido D-Gal D-Tal D-Gul and D-Ido D-ldo and D-Gal D-Gal and D-Tal D-Gul and D-Gal None of the given options
- A 40-year old woman presented with jaundice. There was no history of contact with hepatitis, recent foreign travel, injection or transfusions. She does not drink alcohol. Her laboratory results are as follows: Test Unit Result Reference range Bilirubin µmol/L 340 ≤17 Aspartate aminotransferase (AST) U/L 98 ≤30 Alanine aminotransferase (ALT) U/L 78 ≤37 Alkaline phosphatase (ALP) U/L 522 ≤150 Albumin g/L 42 35-45 Gamma-glutamyltranspeptidase U/L 242 ≤55 By comparing the clinical results with the reference ranges, suggest which disorder this clinical picture is likely to represent and give evidence to support your explanation.Which of the following is incorrect about blood glucose test interpretation A) fasting plasma glucose 6.1-6.8 defined as having IGT and should probably be screened again after a year or so. B) 2 results>7mmmol/l defined as having diabetes C) fasting plasma glucose >6mmol, recall for further test. D) fasting or random plasma glucose, on one reading of <11.1mmol/l is diagnostic of diabeteswhy does threonine and serine test positive for biuret test?
- B. COLOR REACTIONS. Give the ideal observation for the positive results of the following samples to complete the table below. Write NO RXN if the sample gives negative result for the given tests BIURET XANTHOPROTEIC NINHYDRIN SULFUR SAMPLES TEST TEST TEST TEST Formation of violet- Cysteine NO RXN colored product Formation of red- Tryptophan NO RXN colored solution Formation of Formation of violet- Keratin black colored product precipitate B - Alanine NO RXN NO RXNThink of another type of test to determine whrther a person is lactase persistent or nonpersistent. Describe idea in one or two sentences.What therapeutic agent is used in the given conditions? Choices: Thiamine Potassium citrate Ascorbic acid Aminocaproic acid Cycloserine Captopril Baclofen Eflornithine Glutathione Gabapentin Oxytocin Penicillamine Sapropterin Vasopressin Valacyclovir Pegvalinase Acetazolamide Acetylcysteine