Given the chromatogram below in a normal phase, which samples would be the least polar? O Samples B and C O Samples C and D O Samples A and D O Samples B and X
Q: The pH of lemon juice is 2, and the pH of orange juiceis 4. Which of these is more acidic, and by ho...
A: pH refers to power of hydrogen or potential of hydrogen. It indicates the presence of H+ . It is mea...
Q: A Without inhibitor
A: Inhibitors are the molecules that make the enzyme inactive. Enzyme activity is decreased or complete...
Q: Choose the order of reactions that best describes a metabolic pathway catalyzed by enzymes
A: In living cells the reactions occur at normal body temperature and pressure due to the presence of s...
Q: Why is it important to study the strength of acids and bases?
A: Any hydrogen-containing substance capable of transferring a proton (hydrogen ion) to another chemica...
Q: Which of the following structural features are involved in the formation of a peptide bond? amino gr...
A: A polypeptide chain is a polymer of naturally occurring amino acids that are linked together by a pe...
Q: 5. At pH 7, the net charge of tyrosine is? А. -2 В. -1 С. 0 D. +1 E. +2
A: PH is defined as the negative logarithm of H+ ion concentration. The amount of H+ ions in a solution...
Q: 1. How do you prepare 25 mL of a 0.4X solution of SDS from a ...
A: Using formula C1V1= C2V2, we can calculate the Molarity, w/v, %, or any other concentration of the s...
Q: rollowing -passed; 1.e., odui ucing nto the electron transport chain without using this complex are ...
A: ETC or electron transport chain is the process which leads to ATP synthesis. The ETC occurs in the i...
Q: Discuss the functions and components of Biuret dye in protein content determination.
A: Since you have asked multiple questions, we will answer only first question for you. In order to get...
Q: What is it about the structure of cellulose and starch would cause these two sugars to produce lower...
A: Carbohydrates are classified as monosaccharides, oligosaccharides, and polysaccharides based on the ...
Q: Choose the plot that best reflects the activity of an enzyme inhibited irreversibly. 100% A B C D ti...
A: Enzyme inhibitors are the substances that bind to enzyme either at active site or allosteric site so...
Q: 1. The diagram below shows the chemical structure of two sugar molecules. СНО b. CHZOH а. НО- H. C=0...
A: As you have asked multiple sub part questions ,we are are supposed to solve only first three sub pa...
Q: Can we determine the type of monosaccharide with the Molisch experiment?
A: Carbohydrates have the chemical formula Cn(H2O)n and are organic molecules. This formula, however, d...
Q: How to identify the Vmax and the Michaelis constant (Km) in an enzyme kinetics graph?
A: Vmax and KM are the two parameters that define the kinetic behavior of an enzyme as a function of [S...
Q: 2. Explain why enzyme activity declines at (a)high temperature and (b) presence of heavy metal ions.
A: Enzymes are proteins that aid in the speeding up of our bodies' metabolism, or chemical processes. S...
Q: An E. coli replication fork is shown in Figure 2.2. III 3' IV 5 II Figure 2.2 (i) Circle and label t...
A: DNA is a double-stranded structure that can replicate by itself. The self-replication of DNA is semi...
Q: Choose from the following pairs. Which are constitutional isomers? Pair A Br
A: constitutional isomers are structural isomers that they differ in structure but have the same formul...
Q: Signal-transducing heterotrimeric G proteins consist of three subunits designated α, β, and γ. The G...
A: Activation of effectors such as adenylyl cyclase, phospholipase C, and ion channels occurs in the co...
Q: Which of the following disaccharides produces two different monosaccharides upon hydrolysis? maltos...
A: Disaccharides are the Carbohydrate molecules made up of two monosacharide units. The monosacharides ...
Q: You have discovered a new bHLH gene and would like to use ChIP-Seq to learn more about it's role in ...
A: A basic Helix-Loop-Helix Domain (bHLH) is a very common domain found in proteins that act as Transcr...
Q: Calcitonin reduces Ca+ from the blood
A:
Q: List 2 proteins that facilitate protein folding and briefly describe the role each play in the lifet...
A:
Q: With the aid of the simple generic diagram, identify and explain how the type of chemical bonding st...
A: An alpha helix is a periodic secondary structure in proteins. This secondary structure is stabilized...
Q: Will a decrease in carbon dioxide (CO2) shift the binding curve of hemoglobin? Will it shift to the ...
A: Hemoglobin (Hb) is a protein present in the red blood cells which is a carrier of oxygen to the body...
Q: Provide an example where "gradient" acting as a force and driving life
A:
Q: At high salt concentration, proteins are less soluble. Changing the solubility of a protein based on...
A: Salting out procedure can be used to precipitate large biomolecules, such as proteins or DNA. The sa...
Q: What is population? Describe its different characteristics with suitable examples
A: Population is a term used for addressing individuals of a species that coexist in a particular habi...
Q: Long-range interactions between residues on a single polypeptide chain are classified as quaternary ...
A: Proteins are the linear chain of amino acids attached together via peptide bonds. Proteins are compo...
Q: Find a protein of your choice, choose a part of it (containing at least 30 amino acid residues), fin...
A: A 60 amino acid long portion of the protein (an enzyme ) trypsin from a species of camel (Camelus dr...
Q: Which of the following equations accurately shows enzyme-catalyzed conversion of substrate to produc...
A: Enzymes are protein molecules that increase the rate of reaction by decreasing the activation energy...
Q: Remembering: Chrysolaminarin is a storage polysaccharide of red algae a storage polysaccharide of di...
A: Carbohydrates are biomolecules that are important for energy generation in living organisms. They ar...
Q: An enzyme is present at 100 nM (nanomolar) and has a Vmax value of 25 uM/s (micromolar/second). The ...
A: Michaelis–Menten kinetics is a well established model of enzyme kinetics. The Michaelis -Menten equ...
Q: The structure of D-galactose differs from that of D-talose at which carbon atom? carbon #2 carbon #3...
A: Epimers are a pair of diastereomers that have more than one chiral center but they differ only at on...
Q: Based on the structure of CBB G-250, explain why it can bind to proteins having basic and hydrophobi...
A: CBB G-250 (Coomassie Brilliant Blue G-250) is a dye used to visualize proteins. There are two types ...
Q: Rex, a 12-year old male patient with Cerebral Palsy and Pachygyria went to your clinic for his annua...
A: Mostly lungs, liver, pancreas kidneys, and intestine is affected by cystic fibrosis. ...
Q: Will a decrease in elevation shift the binding curve of hemoglobin? Will it shift the curve to the ...
A: Binding curve of haemoglobin: this is also called as oxygen dissociation curve which is plotted bet...
Q: la: Several factors (including agarose gel concentration, time and current) affect migration of DNA ...
A: Agarose gel electrophoresis is the technique that is used for separation of DNA molecules based on t...
Q: Which of the following is the first step in folding a linear polypeptide into an ordered functional ...
A: Proteins are the chains of amino acids connected by the amide linkage called "peptide linkage". Prot...
Q: List some important types of molecular interactions involved in recognition and binding of polysacch...
A: Polysaccharides, also called as glycan are the abundant carbohydrates found in food. They are compos...
Q: 4. a. Give the full names of the amino acids in this peptide. H3 N -CH-C-N-CH-C-N-CH- C ČH3 н Cнон н...
A: The pKa values of amino acid side chains that constitute a protein play an important role in determi...
Q: 4. What would be the most possible interaction between the side chains (R-group) of isoleucine and p...
A: The peptide bond is formed between the alpha amino and the alpha carboxyl groups of amino acids and ...
Q: Substrate, uM VO, uM/min 2.5 28 4 40 10 70 20 95 40 112 100 128 200 139 1000 140
A: The Lineweaver Burk (LB) equation is; 1V0=KmVmax×[S0] +1Vmax This is of the form 'y=mx+c' Hence i...
Q: Some cancers are detectable with a simple blood test (if the cancer cells secrete a chemical that ci...
A: Hi thanks a lot for asking the details of the solution. The solution is correct, and amount of chemi...
Q: 1a-Consider a situation where the primer sequences used in a PCR reaction are synthesized to be comp...
A: A heritable genetic change in the genetic material of an organism that gives rise to alternate for...
Q: Remembering: CO2 in our body is transported through the blood primarily as O co2 myoglobin complex O...
A: Introduction: The waste product of aerobic respiration is carbon dioxide. Very high or low amounts o...
Q: In order to optimize acetylcholinesterase inhibition, a set of benzylamine derivatives were studied,...
A: The given relationship [log(1/C) = -0.187π + 0.57σ + 3.893] represent Hansch QSAR analysis model. QS...
Q: Analyzing: Each nucleotide in a DNA molecule consists of a: * sulfur group, deoxyribose, and a nitro...
A: 1.
Q: Consider the following statements: (1) The term sugar is a general designation for both monosacchari...
A: Tge term SUGAR is a general designation for both mono and disaccharide. Glucose (monosaccharide) is ...
Q: SSBs are: single-stranded DNA binding proteins that prevent re-annealing supercoil stabilizing...
A:
Q: QUESTION 4 Depolymerization of disaccharides into two monosaccharides involves alan reaction. amidat...
A: Disaccharides are the Carbohydrates that are made up of two monosacharide units joined together by G...
Step by step
Solved in 4 steps
- Polonium is a rare element with 33 radioisotopes. The most common one, P210o, has 84 protons and 126 neutrons. When P210o decays, it emits an alpha particle, which is a helium nucleus 2 protons and 2 neutrons. P210o decay is tricky to detect because alpha particles do not carry very much energy compared to other forms of radiation. For example, they can be stopped by a single sheet of paper or a few inches of air. That is one reason why authorities failed to discover toxic amounts of P210o in the body of former KGB agent Alexander Litvinenko until after he died suddenly and mysteriously in 2006. What element does an atom of P210o change into after it emits an alpha particle.When a mixture of various molecular sized dyes are run through a gel chromatography column, what is eluted in the Void Volume? A. Blue Dextran B. Flourescein C. Both D. NothingA sample was placed on a chromatography column. Dichloromethane was used as the eluting solvent. All the components were eluted off the column, but no separation was observed. What must have been happening during this experiment? How would you change the experiment to overcome this problem?
- Justify and explain following statements. (a) Paper chromatography is a type of partition chromatography. (b) The R f value is 1. (c) Chromatography is only a qualtitative technique. (d) The adsorbent should be insoluble in the solvent. (e) Chromatography is used to separate only color compounds.In which type of chromatography lipids are carried up a silica gel coated pate by a rising solvent front, less polar travels farther than the more polar ones?a) Absorption chromatographyb) Thin layer chromatographyc) Gas-liquid chromatographyd) HPLCThe reason why a nucleus might emit radiation is because by doing so, it forms a more stable-lower energy nucleus.True false
- show the complete solution and write answers in 3 significant figures. M&M's color COMPOSITION Orange ? Green ? Blue ? Brown ? Chromatogram before and after:A student performs a separation by TLC on a silica get plate that results in three spots. Ared spot is measured 23 mm away from the original sample spot, a blue spot is 42 mmaway, and a yellow spot is 49 mm away. The distance from the original spot to where thesolvent stopped is 55 mm.a) Calculate the Rf value for each component in the mixture. (Show your work and reportthe correct number of significant figures.) b) The silica gel plate is polar. Rank the three components in the mixture from lowest tohighest polarity. Explain your answer.If you have a sample of unknown composition, a first step at analysis might be a determination of the masses of the atoms and molecules in the sample. A mass spectrometer to make such an analysis can take various forms, but for many years the best technique was to determine the masses of ionized atoms and molecules in a sample by observing their circular paths in a uniform magnetic field, as illustrated is shown. A sample to be analyzed is vaporized, then singly ionized. The ions are accelerated through an electric field, and ions of a known speed selected. These ions travel into a region of uniform magnetic field, where they follow circular paths. An exit slit allows ions that have followed a particular path to be counted by a detector, producing a record of the masses of the particles in the sample. The moving ions can be thought of as a current loop, and it will produce its own magnetic field. The direction of this field at the center of the particles’ circular orbit isA. In the…
- Why is it important to maintain a constant volume of water in your water bath (when boiling nucleic acid fractions) for chromatography.Would you expect a change in column temperature to have an effect on a reversed-phase chromatographic separation of a steroid mixture? Explain the reason for your answer in (1) abovewhen solar radiation crosses space and moves towards earth.it consists of many types of radiation together these radiation types are known as electromagnetic spectrum. which properties differentiates among the different types of radiation found in the electromagnetic spectrum.
