Why does saliva hydrolyze starch in the mouth but not in the stomach

Q: What type of control generally involves binding of a repressor protein to a regulatory DNA sequence?…

A: Repressor : DNA binding protein which inhibits the expression of 1 or more genes via the binding to…

Q: running the reaction at 83 °C cooling the reaction to 11 °C changing the pH to 5.4 Increase reaction…

A: The rate of an enzyme catalyzed reaction depends on various factors like temperature and pH of the…

Q: (a) Draw the condensed structural formula, and give the name and abbreviation for the dipeptide…

A: Dipeptide is the structure formed by two aminoacids with a single Peptide bond. Anomeric carbon is…

Q: What is the difference between the two salt precipitation methods: salting in and salting out?…

A: The solubility of a protein in solution depends on the concentration of the salt present in…

Q: In monounsaturated fatty acids, the presence of a double bond is usually found at the position…

A: Fatty acids are important micromolecules which combine together to form lipids in plants, animals…

Q: Millon's test is used to detect the amino acid, tyrosine. However, to solely use the qualitative…

A: The amino acid tyrosine has a phenolic group in its side chain.

Q: rans configuration) (3) linoleic (18:2) (4) stearic (18:0) (5) palmitic (16:0)     5     >…

A: The melting point of fatty acid was influenced by the degree and length of the hydrocarbon chain.…

Q: What are massive, insoluble, high molecular weight compounds that have brown color? Not…

A: The brown pigment observed in different foods such as cookies, breads etc is the result of a…

Q: You are provided with a freeze-dried extract that is approximately 25 mg NADH/g extract. Calculate…

A: Given-  ɛNADH 6.22 x 10³ Mr 665. 1mol/L NADH A340- 6.22 x 10³ NADH present in 1gm- 25mg. To Find-…

Q: Explain the term ‘buffer capacity’.

A: An aqueous buffer solution is made up of a weak acid and its conjugate base, or vice versa. When a…

Q: What is cryopreservation? How do we reduce the risk of cell damage from osmolytic pressure in…

A: Cryopreservation is primarily used to preserve biological specimens. Individual cells and biological…

Q: mg/L of cell tissue and 10 mg/L of ammonia

A: TKN is refers to the term Total Kjeldahl Nitrogen which is defined as the total concentration of…

Q: Chain Shortening of monosaccharides can be done in the laboratory thru Kiliani-Fischer reaction.…

A: Carbohydrate chain shorting and lengthening is the process of increasing or decreasing the length of…

Q: RNA Pol III transcribes the following class of RNAS TRNAS rRNAs small nuclear RNAS All of the above

A: RNA pol III :- eukaryotic RNA polymerase, help in eukaryotic transcription.

Q: O The unknown sample contains tyrosine and tryptophan residues O The unknown sample only contains…

A: Enzymes are biocatalyst that increases the speed of reaction by lowering the activation…

Q: Make an analysis of the electrophoresis data below. Comment on the purity, number of subunits, and…

A: Native gel electrophoresis is the process of separation without adding any denaturing agent like…

Q: Yeast fermentation is of a value in making baked products due to the release of: Select one: O a.…

A: Fermentation occurs in the yeast in anaerobic conditions. Alcoholic fermentation occurs in the…

Q: What are the control mechanisms of glycolysis and the Krebs cycle.

A: The question is all about the process involve in respiration like glycolysis and kreb cycle in which…

Q: Germline editing affects only somatic cells. True False

A: In addition to connective tissue, blood, bones, and internal organs, somatic cells also make up the…

Q: How are the organelles in a cell similar to the organs in a human body? Explain in 3-5 sentences.

A: Organelles are cellular components, which perform specific functions inside the cell. Different…

Q: Discuss models for how amyloid fibrils form from unfolded or misfolded proteins and for how the cell…

A: Misfolded proteins result in many degenerative diseases and this often occurs due to several…

Q: Investigate and create an infographic about how cassava can cause poisoning in our bodies. Here are…

A: Hi! Thanks for your question. As you have posted multiple questions and have not mentioned which…

Q: Consider 41 NADH and 19 FADH, molecules funneling electrons into the electron transport chain…

A: Oxidative phosphorylation is the end point of energy-yielding metabolism in aerobic organisms. It…

Q: 5. Use this figure to summarize how the ATP is used as energy "currency", harnessing some of the…

A: ATP is used as a energy currency due to the presence of two high energy phosphoanhydride bonds…

Q: 4. Since pepsin is a gastric enzyme, does it have an acidic or alkaline optimum pH? What happens to…

A: Enzymes are highly specialized proteins that have extraordinary catalytic power, greater than that…

Q: 1. Search for a journal article about a certain drug that targets (whether stimulate or block) a…

A: a) Cystic Fibrosis is a genetic disorder caused by mutations in the gene encoding for CFTR i.e…

Q: 8. Which of these is not an example for stereo specificity? a) L-lactate dehydrogenase will act only…

A: Many enzymes can discriminate between enantiomeric substrates and such enzymes exhibit…

Q: Assessment : Short Quiz True or False Polarity of water is due to the more electronegative hydrogen…

A: Water is a universal polar solvent. The molecular formula of water is H2O. It is composed of two…

Q: 3- Planning, implementation and evaluation

A: Health Sector is the most important sector of today's world which includes which includes hospitals,…

Q: Which of the following statements is TRUE regarding the ABO blood system?     People who have the…

A: There are 4 main blood groups A, B, AB and O and each of these groups can be either RhD positive or…

Q: Based on the structural properties of your protein above , how resistant (or sensitive) would your…

A: Salmonella enterica serovar typhimurium produces 2-keto-3-deoxygluconate 6-phosphate in the…

Q: The structure below is a он NH но HO "он cerebroside monoglycosyl ceramide glycosphingolipid all are…

A: Lipids are a macro biomolecules made of fatty acid monomers, naturally occurring organic compounds…

Q: Using a 1 cm cuvette, the absorbance at 260nm of your double-stranded DNA sample is 0.15. What is…

A: Lambert-Beer's law can be used to calculate the concentration of DNA in a sample. It states that the…

Q: Briefly describe the following and give examples. 1. Starch 2. Glycogen 3. Protein

A: There are four classes of biological macromolecules: nucleic acids, lipids, proteins and…

Q: hosphate buffers are commonly used to mimic biological systems. Given that phosophoric acid is a…

A: Phosphate Buffer System consists or made up of:- Sodium  Dihydrogen Phosphate & Disodium…

Q: What type of spontaneous change to DNA is caused by UV light? deamination

A: Deoxyribonucleic acid (DNA) is a polymer made up of two polynucleotide chains that coil around each…

Q: During Anaphase chromosomes separate and move to ends of the cells. True False

A: During mitosis and meiosis , there are generally 4 phases:-  Prophase  Metaphase  Anaphase…

Q: Sphingolipids do _________________.               I. contain a glycerol core with a phosphocholine…

A: Glycerophospholipids and sphingolipids are complex lipids. They're present in biological membranes…

Q: Hormones, such as testosterone, estradiol and progesterone are examples of steroidal lipids…

A: Lipids are a macro biomolecules made of fatty acid monomers, naturally occurring organic compounds…

Q: What are the structural features of 7N7H (Viperin-like enzyme)? a) Must show 3D structure

A: An enzyme is a biological catalyst. it is usually protein. 'Viperin' is a member of the radical…

Q: Pyruvate can be processed under anaerobic conditions to ethanol (in yeast) or to lactate (in…

A: Introduction: Pyruvate is the product of glycolysis which is an important junction point in…

Q: 9. If 32p-labeled inorganic phosphate were introduced to erythrocytes undergoing glycolysis which of…

A: Glycolysis is the process of conversion of one molecule of pyruvate into two molecules of pyruvate.…

Q: 1. In one (1) sentence point out a key structural similarity and difference in each of the following…

A: There are 4 Biomacromolecules . They are carbohydrates, proteins , lipids and nucleic acids. Each of…

Q: Water Activity

A: Given above graph is bell shaped graph which shows Water Activity Stability Diagram which is in the…

Q: Match the following descriptions with the correct lipid-based compounds: v Cholesterol A. usually…

A: Lipids are not polymers. The simplest form of lipid is fatty acids which are a long chain of…

Q: Isomerization of the following ketose can give two aldoses. Draw the structures of the two aldoses…

A: The given sugar is α-D-fructose. α-D-fructose is a ketose sugar. Carbohydrates or sugar molecules…

Q: Why most of the clinical features of the diseases Krebs Cycle inborn errors ( a- ketoglutarate…

A: Krebs cycle : This pathway plays an important role in the living cell metabolism also known as…

Q: The DNA and associated proteins of a eukaryotic chromosome are called Chromatin Chromatosome…

A: Eukaryotic chromosomes are made up of DNA that is tightly coiled around histone protein clusters.…

Q: Explain the mechanism of warburg effect and how it benefits cancer cells.

A: Warburg Effect or mechanism has been documented for over period of 90 years and extensively is being…

Q: Group I and II introns are present in the following classes of RNAS. MRNAS O miRNAS SİRNAS TRNAS

A: Mobile introns are defined as the intervening sequences. These sequences are the ones that are…