Would lactose + lactase be positive or negative for the Iodine test?

Q: 1. How many different tripeptides are possible? How many carboxyl terminals of polypeptide chains ar...

A: Tripeptides are composed of three amino acids. There are 20 naturally occurring  amino acids . A mol...

Q: Explain the importance, in the anaerobic waste treatment process, of relationship between hydrolytic...

A: IMPORTANCE OF ANAEROBIC TREATMENT:-  1. Anaerobic digestion uses readily available CO2 as an electro...

Q: QUESTION 5 Which of the following amino acids is most unlikely to be present in a beta sheet? Isoleu...

A: In the β-pleated sheet, the sheet are formed due to hydrogen bonding between atoms on the peptide ba...

Q: lease describe a strategy to correctly balance a centrifure rotor if you have 4 samples. 2 samples w...

A: Centrifuge: It is an important tool in the biochemistry lab that through a rapid spinning process u...

Q: What type of reversible inhibitor are sulfanomides?     Competitive     Uncompetitive     Mixe...

A: Substrate molecules get converted to product molecules during a biochemical reaction. Enzymes are pr...

Q: Why and how do enzymes get denatured by heat and some organic reagents? What's the concept of it?

A: Enzymes are proteins (except Ribozyme) function in catalysis of biochemical reactions. They optimal ...

Q: Consider a mixture of two proteins with molecular weights of 20,000 and 200,000. For simplicity of c...

A: Sedimentation Coefficient is the rate per unit centrifugal field experienced by the particle undergo...

Q: 11. The free energy of the two biomolecules is higher when they are not interacting as compared to t...

A: Free energy or Gibbs free energy (G) [named after the scientist Willard Gibbs] is the amount of the ...

Q: Scientific evidence suggests that cells evolved as symbiotic relationships between bacteria (or prot...

A: Individuals of two (or more) distinct species have a close ecological interaction known as symbiosis...

Q: The following were obtained in a study of an enzyme known to follow Michaelis-Menten kinetics:   R...

A: Enzymes are proteins which accelerate the rate of biochemical reactions. The Michaelis-Menten plot r...

Q: write a brief article about proteinous hormones.

A: Hormones: Hormones are chemical substances produced by a specialized gland in the body known as the...

Q: With the aid of diagrams, explain the processes and principles of each of the following methods:  ...

A: Enzymes have the ability to increase the rates of reactions in biological systems and this property ...

Q: activity? To answer the question: a) name the hormone, controlling the lipid metabolism in adipocyte...

A: The breakdown or storage of fats for energy, as well as the production of structural and functional ...

Q: what receptor helps distinguish between organic and inorganic ?     what does not remove neurotra...

A: Elements combine to form chemical substances called compounds. Further, all the compounds have been ...

Q: True or False 1. Xylose gives a positive result with Molisch’s, Seliwanoff’s, & Bial’s-Orcinol tests...

A: A biomolecule is a molecule produced by living organisms or cells. Carbohydrates, proteins, lipids, ...

Q: In Eukaryotes, some hydrogen bonds are formed in between amino acids of the histones and phosphodies...

A:      DNA and RNA are made up of long chains of nucleotides and ribonucleotides bases. Sugar molecule...

Q: The flux through a metabolic pathway with 10 enzymes increases by 10% which the concentration of enz...

A:   Enzymes are biocatalysts which increase the rate of a biochemical reaction by lowering the activat...

Q: Casein in milk is an example of: a. gas in liquid where liquid is the dispersed phase and gas is the...

A:

Q: What are the three special proteins needed to form the initial replication bubble?

A: Replication is an essential process taking place in all living organisms that ensure the maintenance...

Q: What is the p-value or critical value of this problem?

A: A p- value is used in hypothesis testing to support or reject the null hypothesis. The p-value compa...

Q: true or false 1. Catabolism is the breakdown of substances in a biological system 2. Aromatic hydr...

A: 1. Catabolism is the breakdown of substances in a biological system. Answer: True  Explanation:  Cat...

Q: A homopolymer of histidine (polyhistidine) adopts an alpha helix structure at pH 9 but is unfolded a...

A: Amino acids combine together to form proteins and thus are the building blocks of life. All the amin...

Q: One of the main sources of sphingosine in the body is in the cell membrane. What complication could ...

A: Ceramide: These are the type of lipid molecules composed of sphingosine and fatty acids and are foun...

Q: 1. What does the tea bag represent? [ Select] 2. If the teabag is a cell, the water is considered to...

A: Multiple subparts asked. I will answer the 1st 3 subparts, following guidelines.  Please repost othe...

Q: What role do glycocalyces play in the ability of bacteria to survive and cause disease? (use at leas...

A: The cell envelope in bacteria consists of three layers namely, the outermost layer of the glycocalyx...

Q: Histones are proteins found in eukaryotic cell nuclei, tightly bound to DNA, which has many phosphat...

A: Proteins are large and complex molecules playing different critical roles in our body. They perform ...

Q: Listed below are five amino acids. Use the genetic code to determine the exact codon for each amino ...

A: Transition refers to a point mutation that changes a purine nucleotide to another purine or a pyrimi...

Q: Which nucleotide is shown in the picture above?

A: A nucleotide is formed by nitrogenous base, sugar and phosphate. Sugar binds with nitrogenous base b...

Q: Discuss the different structures (primary, secondary, tertiary, and Quaternary structures) of protei...

A: Proteins are polymers of amino acids linked by peptide bonds (carboxyl group of one amino acid with ...

Q: flow chart of purification steps of Beta-fructofruanosidase (Invertase)

A: β-fructofuranosidases are industrially employed due to ease of downstreaming processes(Purification ...

Q: Explain how PEMBA is used to isolate, differentiate and enumerate Bacillus cereus from food sample.

A:              Microscopic organisms such as bacteria, fungi (mold and yeast), protists, archaea, alga...

Q: Why glucose does not cross the cell membrane through open channels?

A: ANSWER Glucose cannot pass the cell membrane through simple diffusion, due to its large structure an...

Q: Answer the following questions. Please I really need help. Even if you write something easy, I beg y...

A: ISO (the international organization for standardization) is a global federation of the national stan...

Q: 17. Three mutant strains of yeast each lacked a different respiratory enzyme and could not carry out...

A: Metabolism is a process of conversion of food consumed by the living body into energy in the form of...

Q: What is the differences between competitive, noncompetitive, mixed noncompetitive and uncompetitive ...

A: Enzyme inhibition is of two types reversible and irreversible. During irreversible inhibition the in...

Q: Phospholipase A2 causes the release of what fatty acid from membrane phospholipids? What chemical cl...

A: Phospholipase is an enzyme that breaks down phospholipids into fatty acids and other lipophilic comp...

Q: Please define GMO in fish. Thank you

A: Transgenic animals: A transgenic animal is one that carries a foreign gene that has been purposely ...

Q: The following statements best describe the RNA structure EXCEPT   they are double stranded because ...

A: RNA is a single-stranded molecule, but can form local double-stranded structures. RNA can form doubl...

Q: Calculate glucose concentration. Na (sodium) and glucose secondary active transport. Na transport (w...

A: Gibbs free energy: The change in free energy for a process equals the maximum work that can be done ...

Q: Assuming you have an agonist, a competitive antagonist, and an easy assay for measuring binding of t...

A: An agonist is a substance that can bring about a specific physiological response by binding to a spe...

Q: Topoisomerases can cut phosphodiester bonds and the DNA ligases will have to seal the nicks whenever...

A: DNA ligases are enzymes that catalyze formation of a phosphodiester bond at a single-strand break in...

Q: Enzymes are catalysts that increase the rate of reactions by pulling two substrates together.   low...

A: Catalysts speed up the chemical reaction without being changed themselves. All living organisms prep...

Q: The proteins and other substances that bind to the DNA rely mostly on non-covalent interaction to de...

A: Proteins are an important class of biomolecules that are found in all living organisms and are compo...

Q: Draw the C-2 epimer of Ribose

A: Epimers are a  pair of diastereomers,  at one stereogenic carbon center of two epimers have at least...

Q: Are biomolecules only present in foods? Not in things or objects? If not, please provide some things...

A: Life exists on earth because various non-living molecules interact together and sustain life, these ...

Q: Indicate the contrast statements of the following chromatographic techniques of separation. A. A sep...

A:

Q: Which of the below statements are FALSE? I: Cholesterol synthesis is regulated by covalent modificat...

A: Cholesterol is present solely in animals, thus it is frequently called animal sterol. It is amphipat...

Q: write the orbital box diagram and dipole moment using the lewis strcuture for clo3^-: orbital name, ...

A: Lewis structure: Lewis figures show only an atom's valence electrons and the chemical symbol of a c...

Q: Summary Chart Macromolecule Monomer Polymers Bonds Functional Groups Examples CH2OH CH2OH он - CH,-C...

A: Macromolecules are the molecules of high molecular masses. These are composed numerous small molecul...

Q: What enzyme kinetic parameters are apparently impacted by competitive inhibitors?      Vmax     ...

A: Correct answer  Option b. Km   Explanation  Competitive Inhibition: Competitive inhibition is a type...