What did experiments using porcelain filters prove?
Q: (b) The actual resting membrane potential of the cell is not only dependent on the individual…
A: Nernst equation gives us the resting membrane potential contributed by a single ion. The Nernst…
Q: How long (Å) is an alpha helix of 16 amino acid residues?
A: Alpha-helix is a spiral structure formed by hydrogen bonding between the carboxyl group of first…
Q: A sample (1.90 x 10² mg) of an oligomeric protein of M, 113,000 was treated with an excess of…
A: DNP-Val : DNP-Val ( 2,4-dinitrophenyl-valine) is a derivative formed when the N-terminal amino acid…
Q: Carbohydrates differ in solubility based on the size of the molecule. Which of the following…
A: Carbohydrates are the biomolecules which are classified into monosacharides, oligosaccharides and…
Q: . The structure of certain porin proteins is organized into an interesting beta-barrel, in which…
A: IntroductionStructureAquaporin have structure consisting of 6 member helical structure forming…
Q: The genome of SARS-CoV-2 is a single-stranded sense (coding) mRNA that is translated into many…
A: The three prime untranslated region is abbreviated as 3'UTR. It is the part of messenger RNA that…
Q: if the absorbance value measured in a spectrophotometer is 0.5, how much of the original incident…
A: The objective of this question is to determine the percentage of the original incident light that is…
Q: fractional occupancy
A: The fractional occupancy quantifies the fraction of total protein binding spots taken by ligands at…
Q: Binding of acetylcholine to postsynaptic membranes increases the conductance of Na+ into the cell.…
A: The question is asking us to identify the type of transport mechanism that is involved when…
Q: compound can be found with a tyrosyl unit?
A: Tyrosyl unit:This unit refers to a structural component which is derived from the amino acid…
Q: peptide Lys-Glu-Trp answer the following questions: Draw the structure of this peptide…
A: There are 4 types of biological macromolecules: proteins, nucleic acids, lipids and…
Q: Your tyrosinase enzyme assay results in a slope of 0.001946 sec-¹ for absorbance at 475 nm. Give the…
A: Before going into the calculation part, we need to know the principle behind the assay. The assay is…
Q: If it costs 11.0 kcal/mol to "run" the Na/K ATPase (i.e., pumping 3 Na* ions out of the cell and 2…
A: The mathematical relation between actual free energy change () and biochemical standard free energy…
Q: Assessment 2: scenario based assessment Instructions This is a ‘scenario problem’. Read the…
A: The objective of the first question is to determine the optimal speed of travel for the treasure…
Q: 31.A) What is the overall order of an enzymatic reaction, under conditions where the substrate…
A: Km is the Michaelis menton constant which is equal to Substrate concentration at which the velocity…
Q: Sketch the titration curve for the amino acid alanine with pka1 = 2.34 and pka2 = 9.69.
A: Titration can be referred to as the effect of pH on amino acid structure. Titration curve of amino…
Q: Enzyme performance (a) Compare chymotrypsin, Muty, and carbonic anhydrase in terms of chemical…
A: Turnover number (kcat) is the maximum number of substrate molecules that can be converted into…
Q: Physiological Systems and Regulation Assessment 2: scenario based assessment Instructions This is…
A: The objective of the first question is to determine the optimal speed of travel for the treasure…
Q: Why are all biologically active molecules, hence all of life “left handed?” Include enzymes and the…
A: Stereochemistry is the branch of chemistry that explains the 3-D conformation of molecules. A…
Q: Problem: From the following information determine the amino acid sequence of a peptide. N-terminal…
A: When a polypeptide undergoes edman degradation it gives PTH derivative of an amino acid residue. The…
Q: (1) Identify the chiral atoms, if any, with an asterisk (") in the following compounds. CH OH CH OH…
A: Monosaccharides are simple sugars that form the building blocks of carbohydrates. They are…
Q: of 17 > Lactose is a monosaccharide my disaccharide polysaccharide and galactose is a
A: Chemically, carbohydrates are polyhydroxy aldehyde or ketones. Depending on the number of units,…
Q: Which of the following statements is true for miRNA but not siRNA? Formed from an RNA transcript…
A: miRNA is nothing but micro RNA which is 18-25 nucleotides long where as si RNA is smaller…
Q: Say there is an additional electron carrier added to the ETC, hydrogen sulfide. Where would it be in…
A: One of the most important steps in aerobic cellular respiration involves the Electron Transport…
Q: Genetics Q2
A: The objective of this question is to determine the probability of Cindy's children inheriting…
Q: ng at the figure above, which statement is true? B. H H H-C-OH HO-C-H H-C-OH H-C-OH CH₂OH =0 HO-C-H…
A: Stereoisomers of sugars are broadly divided into enantiomers and diastereomers. 2 stereoisomeric…
Q: Decide whether each molecule in the table below could be found embedded in the outer surface of a…
A: Cell membrane1. Composition: Cell membrane is made up of protein, lipids and carbohydrates (In…
Q: Consider the following scenario: A group of five treasure hunters have been hired to retrieve some…
A: The objective of the first part of the question is to determine the optimal speed of travel for the…
Q: (4) Can this disaccharide be digested by human beings? What will happen if we don't digest it? How…
A: Carbohydrates are biomolecules that are made up of carbon, hydrogen, and oxygen. Carbohydrates can…
Q: What is the pH of a solution of 4.1 x 10-8 M NaOH in otherwise pure water?
A: The objective of this question is to calculate the pH of a solution of sodium hydroxide (NaOH) in…
Q: Genetics Question 10
A: The objective of the question is to determine whether the statement 'This allele is highly penetrant…
Q: Question 5 Listen In cats, Short Hair (S) is dominant to long hair, Black fur (C) is dominant to…
A: The objective of this question is to determine the probability of a specific genetic outcome based…
Q: 4. Using a fluorescent model substrate, you study the kinetics of an enzyme-catalyzed reaction. You…
A: Enzymes are the biocatalysts that catalyse the biochemical reactions by lowering the activation…
Q: 1² L-^ 0.1 + ||| -4-2 |||| 24 [S]-1, (mM-1) 1, The value of Km for the enzyme depicted by curve A is…
A: Km is the Michelle's menton constant which is equal to the substrate concentration at half of the…
Q: Predict the most likely product of this biochemical reaction: HO NH3 + Pi X + H₂O
A: Here we are given a phosphorylation reaction. The phosphate donor here is inorganic phosphate (Pi).…
Q: (b) The GLUT system is highly selective for glucose. It also speeds up the rate of glucose transport…
A: The Glucode transporter (GLUT) is involved in the facilitated diffusion of glucose across the cell…
Q: For an enzyme catalyzed reaction of the form: S + E → P + E, the rate of product formation, [P], is…
A: Km is Michael's constant which is equal to substrate concentration at half of maximum velocity of…
Q: Question 8 Listen In fruit flies a dominant mutation on the X chromosome causes the eye to be oval…
A: The objective of this question is to understand the inheritance pattern of a sex-linked dominant…
Q: Genetics Question 3
A: The objective of the question is to understand whether epistasis and dominance are the same concepts…
Q: 2) Fill in the blank by selecting one of the options below: a. Primary structure. b. Secondary…
A: The correct answer is: b. Secondary structure."the structure formed by hydrogen bonds between…
Q: Draw the structure of Arg - Lys - Ser - Trp at ph 7.4
A: The proteins are biological macromolecules that are composed of twenty naturally occurring amino…
Q: What type(s) of non-covalent interaction determine(s) the specificity of base-pairing within a DNA…
A: As per the Watson-Crick model of the DNA double helix:DNA is made up of two strands of…
Q: Intramitochondrial ATP concentrations are about 5 mM, and phosphate concentration is about 10 mM.…
A: The energy charge of a living cell is a metric that indicates the energy status of the cell. The…
Q: Genetics Question 2
A: The objective of the question is to determine the type of genetic inheritance pattern that would…
Q: Which analogue involves a retroinverso peptide isostere? CH₂ A с CH3 Ö G O NH FX NH S OH OH S B D S…
A: Retro-inverse peptide:1. The sequence of parent chain is reversed such that the N side to C side…
Q: Genetics Question 8
A: The objective of the question is to determine whether the given statement about expressivity in…
Q: Dihybrid Cross Problem 7: Homozygous offspring of a dihybrid cross. In a dihybrid cross, AaBb x…
A: The objective of this question is to determine the fraction of offspring that will be homozygous for…
Q: Cofactors and coenzymes act to View Available Hint(s) O inhibit the binding of the substrate Oblock…
A: Coenzyme: The organic non-protein compound that loosely binds with an enzyme to catalyze the…
Q: Which DNA sequence would base pair with the structure shown below? Thymine, Thymine O 5' GGCC 3¹ O…
A:
Q: 2. (6) Examine the two proteins labelled a) and b). Which of the two Ramachandran plots, c) or d) is…
A: Amino acids are backbone of proteins or polypeptide chains. When amino acids joined covalently…
What did experiments using porcelain filters prove?
AI-generated content may present inaccurate or offensive content that does not represent bartleby’s views.
Unlock instant AI solutions
Tap the button
to generate a solution
Click the button to generate
a solution
- Why is bacterial culture useful to grow bacteria?What is the purpose of the detergent in the experiment?A microbiology student was given a mixed culture of two different gram positive bacteria species to grow into a culture medium using correct aseptic techniques. After two days,one gram positive bacterial species grew on the media and the growth appeared red on the surface of the medium. Tthe second gram positive bacterial species grew and the growth appeared yellow on the surface of the medium. What is the possible explanation for the differences in the color of the bacterial growth? A. the culture was contaminated B. the microbiologist put too much inoculum on the culture medium C. the medium was a selective medium D. the medium was differential
- Attached below is the study about the effects of handwashing and the effectiveness of soap against bacteria. What conclusions can be generated from this result? A C before washing hands 10 second hand wash B D hot water only rinse 30 second hand wash Figure 8: Agar plates with bacteria A) before washing hands B) after rinsing hands in hot water C) After washing hands with soap for 10 seconds and D) after washing hands for 30 seconds. Images show that the number of bacteria on the plate are not greatly reduced after a hot water rinse or 10 second handwash but bacterial levels are reduced after a proper hand wash for 30 seconds.Before the experiment was run, the apparatus was sterilized and then carefully sealed. Why was this an important thing to do?What could be the components of writing a good research proposal? Why do we conduct research in microbiology?
