• Q : Catalase test performed on colonies....
    Biology :

    1) Is a catalase test performed on colonies from a BAP? State reasons to support your answer? 2) Explain how a catalase test helps in distinguish between Staphylococcus from Streptococcus sp.

  • Q : Definition of life from a biological viewpoint....
    Biology :

    Find out a media piece which recognizes the basic concepts of chemistry in biology and explain how it helps to better understand how basic concepts of chemistry influence biology.

  • Q : Introduction to smearing blood....
    Biology :

    1) Why is it significant to smear the blood as soon as the drop is placed on the slide? 2) Name the three factors which find out the thickness of the smear.

  • Q : Understanding and computing dilution factors....
    Biology :

    For an upcoming experiment, an immunoassay (ELISA) protocol calls for a complicated series of dilution steps for your blood specimen. Compute the final dilution factor after the given steps:

  • Q : Oxidation and synthesis of fatty-acids....
    Biology :

    Define the term fatty acid oxidation and synthesis in the animal tissues. Your definitions must point out the similarities and differences of oxidation and synthesis.

  • Q : Drug to reduce hepatitis b virus....
    Biology :

    A new drug was found to reduce Hepatitis B virus. The drug is an analogue of one of the nucleic acid bases of DNA and most likely works by being incorporated into the virus and disrupting viral gene

  • Q : Metabolism throughout heart attack....
    Biology :

    Throughout a heart attack, blood flowing to the heart muscle is interrupted by the blockage of a coronary artery. Explain how would you expect the metabolism in the heart to change?

  • Q : Fatty acids-reactions-mechanisms-enzymes....
    Biology :

    Explain how many can the predictions above be used to find out the method by which the fatty acids are discharged from the fatty acid synthetase?

  • Q : What are ketone bodies....
    Biology :

    What are the ketone bodies? Explain why do they have that name, and how do they occur in metabolism? Describe why they accumulate under conditions of carbohydrate starvation or in diabetes.

  • Q : Amount of dna using spectrophotometers....
    Biology :

    I am wondering if there could be another solution which could be used to make the one to one solution, such as distilled water, or if the NaCl solution has a special role in the ionization?

  • Q : Intrinsic binding constants....
    Biology :

    If the hemoglobin tetramer had four identical non-interacting binding sites, what relative values would the intrinsic binding constants have?

  • Q : Possible series of nucleotide pairs....
    Biology :

    Mathematical expression to compute the number of possible series of nucleotide pairs with the usual base pairing, for a molecule of n-deoxyribonucleotide pairs.

  • Q : Solving buffer solution dilemmas....
    Biology :

    Compute the concentration of acetic acid and sodium acetate essential to make a buffer solution of pH = 5.1 which is 0.25M in total acetate. The pKa of acetic acid = 4.76

  • Q : Isomerization of the phosphorylated glucose molecule....
    Biology :

    The isomerization of a phosphorylated glucose molecule from 1-p to 6-p form with standard free energy change = -1.74kcal/mole. Find out the equilibrium concentration ratio of glucose-p in the two i

  • Q : The enzymes of glycolysis....
    Biology :

    What are the different strategies used to regulate glycolysis (do not comprise glycogen phosphorylase in this question), however comprise how different inhibitors and activators function, how a high

  • Q : Catalyst of anaerobic glycolysis....
    Biology :

    The enzyme loctate dehydrogenase (LDH) is present in all tissues as a catalyst of the anaerobic glycolysis. It has 5 isoforms, explain these isoforms and how they can be used in the differential dia

  • Q : Primary sequences for a pentapeptide....
    Biology :

    Describe how many different primary sequences are possible for a pentapeptide made from naturally occurring amino acids?

  • Q : Investigating a membrane protein....
    Biology :

    Suppose that each and every helix is perpendicular to the plane of the membrane and goes precisely from side of the membrane to the other. As well suppose that each helix is linked to the next by a

  • Q : Explanation of gre subject question....
    Biology :

    Biochemists usually like to study and characterize proteins as pure substances isolated from their native environment. Describe the single most important process or procedure which must be available

  • Q : Ionization state-protonated or deprotonated....
    Biology :

    Describe the ionization state (protonated or deprotonated) of each residue at pH5.2? Determine the pH optimum of lysozyme?

  • Q : Isomerization reaction ratio....
    Biology :

    Consider the isomerization reaction between glucose-6-phosphate and fructose-6-phosphate. a) Describe the ratio of fructose-6-phosphate to glucose-6-phosphate under standard conditions?

  • Q : Methotrexate-potent cancer chemotherapeutic agent....
    Biology :

    Methotrexate, a potent cancer chemotherapeutic agent, is a strong competitive inhibitor of the dihydrofolate reductase. Explain why this compound is an efficient inhibitor of the de novo synthesis o

  • Q : Molecular weight and allergenic potential....
    Biology :

    What does molecular weight of a protein encompass to do with the allergenic potential? This solution explains the relationship between the molecular weight of a protein and its potential to be an al

  • Q : Calculating number of atp molecules....
    Biology :

    Compute the total number of ATP molecules produced from one molecule of maltose. You will require considering that first maltose will hydrolyze, and then resulting glucose molecules will enter into

  • Q : Capability of chymotrypsin....
    Biology :

    Though the enzyme Trypsin was capable to hydrolyze both TAME and BTEE substrates and I was wondering why? And why/ what makes chymotrypsin so much more precise??

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