A.We have seen from history the role science has played in the prevention and control of diseases. From your understanding and application of principles learnt, what role does Epidemiology have to play in disease prevention and control in the modern world and how do you see it applicable in the future?

Q: the structural differences between fatty acids (cis and trans double bonds), diacylglycerols,…

A: Lipids are biomolecule which is soluble in non-polar solvents and insoluble in polar solvents.…

Q: Which of the following is/are (a) ketopentose? A. threose B. xylulose C. arabinose D. mannose

A:

Q: Classify the 13 known vitamins into water-soluble or fat-soluble vitamins.  Water-Soluble Vitamins…

A: A vitamin organic molecules essential for the proper functioning of the body. They are…

Q: Given the structures of the nitrogenous bases shown in the picture, draw the structure of a part of…

A: The nitrogenous bases shown in the figure are Adenine (A), Guanine (G), cytosine (C), uracil (U) and…

Q: Describe the process of denaturation of protein.

A: A native protein conformation is only marginally stable. So most proteins must maintain…

Q: What possible quiestions can be askeed under the following question: How can one inestigate the tyoe…

A: AZT is a anti-HIV drug. It is a nucleoside analogue. AZT is incorporated in the replicating DNA in…

Q: if the helix is more stable in water, would there be a way to synthetically create base pairs in…

A: Double stranded DNA is composed of two complementary strands with each strand consisting of sugar…

Q: What is the major difference between motifs and domains? a) Motifs are unstable on their own, while…

A: Motifs and domains are the structural elements of proteins that differ in their organisation and…

Q: Mixtures of amino acids can be analyzed by first separating the mixture into its components through…

A: In ion exchange chromatography the column support matrix is constituted of beads to which charged…

Q: Which of the following is not found within the cytoplasm of a cell? a) Plasma membrane b) Cytosol…

A:

Q: The glycerol phosphate shuttle moves reducing equivalents (electrons) from the cytosol to the…

A: Shuttle systems are the systems which help in the transport of electrons from NADH present in the…

Q: Cell junctions can connect both molecules from the inside and outside of cells,  True  False

A: Cell junctions are connections or adhesion between the cells ,they act as bridge for cellular…

Q: 2. Vasopressin, a substance produced by the human body that regulates blood volume and pressure, is…

A: Nano peptide is a peptide molecule with nine aminoacids. There are specific tests for the…

Q: How do you explain Mr Willis’ dark urine and dark stools?  Would Mr Willis benefit from any…

A: G6PD(glucose-6-phosphate dehydrogenase) is an enzyme which helps in proper functioning of RBCs. Its…

Q: Which of the following statements correctly describes promoters in E. coli a.A promoter may be…

A: A promoter is a short region of DNA upstream of the start site of a gene at which the RNA Polymerase…

Q: What is the pH at which the tripeptide Gly-Ala-Gly has a net charge of 0?

A: The net charge of a peptide is calculated by adding the charges of amino and carboxy terminal of the…

Q: Which of the following amino acids can be converted to ketone bodies? a.Ala b.Arg c.Lys…

A: Amino acids can be degraded & during degradation, they can form various intermediates. Depending…

Q: 1) The smallest monsaccharides that can exist are: a) Pentoses b) Trioses c) Hexoses d) Tetroses…

A: Carbohydrates are polyhydroxy aldehydes or ketones. They can be classified as monosaccharides,…

Q: Active transport requires energy released by an exergonic process such as the formation of ATP…

A: Active transport system requires energy in order to allow the movement of molecules, mostly the…

Q: Give at least 5 sources of protein.

A: Protein is a biomacromolecule formed by repeating units of amino acids. They are the building blocks…

Q: What are the relative percentage (%) of species (B) and (C) at pH 7.2? (Note: treat pka's as…

A: Amino acids contain an alpha-amino group, an alpha-carboxylic group, and a side chain. The side…

Q: What does the acronym AGP represent?

A: Plant cell wall contains a wide group of hydroxyproline rich glycoproteins. One type of…

Q: Which of the following reactions in glycolysis is/are reversible? A. PEP → pyruvate B. DHAP → G3P…

A: Glycolysis is process of breakdown of one glucose glucose into two molecules of pyruvate with net…

Q: Which of the following statements about trans-fatty acids is/are FALSE?   a.Healthier than…

A: Fatty acids are carboxylic acids with a hydrocarbon chain ranging from 4 carbon to 36 carbons. The…

Q: Sucrose is a disaccharide composed of rich of the following monosaccharides? Group of answer…

A: Carbohydrates are classified as monosaccharides, oligosaccharides, and polysaccharides based on the…

Q: Which of the following statement(s) correctly describe(s) fibrous proteins?   A  Insoluble B…

A: The three main categories of proteins are membrane proteins, globular proteins, and fibrous…

Q: Differentiate the four qualitative tests for proteins BIURET, XANTHOPROTEIC, NINHYDRIN, & MILLON’S

A: Proteins are composed of amino acids, which are bound together by peptide linkage. Amino acids…

Q: What are the three names for the metabolic cycle that occurs in the matrix of the mitochondria?…

A: In the eukaryotic cells, the citric acid cycle occurs in the matrix of the mitochondria. The proton…

Q: QUESTION 4 What was the distance (in cm) traveled by the SAMPLE B in the TLC below: solvent front…

A: TLC is a separation technique in which solutes or molecules are separated on the basis of their…

Q: Identify if the statements are TRUE or FALSE. If false, write the word/s that make(s) the statement…

A: RNA's primary structure is its nucleotide sequence. The secondary structure of RNA is the structure…

Q: The total concentration of enzyme in a reaction, [E], is made up of the concentration of enzyme…

A: Enzymes are the protein molecules that consist of active sites at which substrate molecules bind to…

Q: The substitution of a Glutamate residue for Valine residue is a conservative substitution. True…

A: Glutamate and Valine are amino acids. Amino acids are biomolecules that have an amino group, a…

Q: TRUE or FALSE. If false, write the word/s that make(s) the statement incorrect. 1.The Okazaki…

A: The flow of genetic information from DNA to RNA, RNA to protein synthesis is called central dogma.…

Q: Ion channels can open or close based on electrochemcical gradient.

A: Ion channels are proteinaceous pathways that allow the passage of ions across a membrane at rates…

Q: Why does the velocity reach a plateau (asymptote) at high substrate concentrations?       a. At high…

A: Introduction Enzymes are known as biocatalyst. They increase rate of a chemical reaction by reducing…

Q: in the presence of a noncompetitive inhibitor 24) Relation between Reaction Velocity and Substrate…

A:

Q: 5a) Draw this peptide at the physiological pH (7.4) with the following 1-letter codes: F-R-I-D-A-Y…

A: Proteins are composed of amino acids. They are linked together by peptide linkages. Proteins have…

Q: "Nucleotides are the Subunits of DNA and RNA". Discuss and what lessons can be learn to this.

A: The complete hydrolysis of chromosomal nucleic acid yields inorganic phosphate, 2-deoxyribose and…

Q: Provide a detailed plan and explanation on how to synthesize the following peptide by using Fmoc-…

A: Solid phase protein synthesis is a very powerful technique for the generation of synthetic oligo…

Q: Primer Designing:

A: Primer desingning: Primers are short DNA sequences used to amplify the larger fragment of DNA in a…

Q: Draw the Biosynthesis of fatty acids from Acetyl CoA pathway and identify the different types of…

A: The biosynthesis of fatty acids from the acetyl-CoA occurs in the cytosol. It involves the addition…

Q: Describe the process of denaturation of protein.

A: The proteins are most active in their native structure. Native conformation of the protein is the…

Q: A) Write out both strands of the recognition sequences for BamHI and Sau3A, show what they would…

A:

Q: Why can nitrogen cross the membrane via diffusion through the bilayer and while protons require a…

A: Passive diffusion refers to the process by which small nonpolar, uncharged molecules dissolve into…

Q: Select two molecules that could be found in a protein, and from the two molecules, are they lower or…

A: Proteins are biomolecules composed of amino acids. Amino acids are joined together through peptide…

Q: Which of the following statements is/are TRUE for transcription? A. RNA polymerase uses one strand…

A: Transcription is the process in which RNA is synthesized from DNA. This process involves certain…

Q: what is the Vmax and Km  of the enzyme in the reaction

A: Parameters such as Km and Vmax are used for comparing enzyme activities. If we know the initial rate…

Q: Mention all the enzymes and reagents used in the everse Transcriptase Polymerase Chain Reaction…

A: RT PCR  is Reverse transcription polymerase chain reaction. This a process used to generally…

Q: Now, assume that a hypothetical two-subunit hemoglobin has an n of 2. The ratio of the…

A: Our hypothetical Hemoglobin (Hb) consists of 2 subunits . 'n' denotes the number of binding sites in…

Q: 6) Proline is not commonly found in the middle of a-helices because its ring structure prevents it…

A: A protein's function depends on its structure. There are four levels of protein structure: primary,…

Health Epidemiology

Health is an essential factor for all human beings. For all humans, health is a critical factor. An individual's ability to meet life's challenges and retain his or her capacity for optimal functioning is reflected in his or her condition of health. This needs the physical, mental, and biological parts of one's constitution to maintain a degree of functioning that has a favorable influence and support for one another.