Enzymes

Q: Compare exotoxin from endotoxin based on the following features

A: Toxins are dangerous substances produced by live cells or organisms; synthetic toxicants made by art...

Q: A polypeptide with a net positive charge at physiologic pH (~7.4) most likely contains amino acids w...

A: are non-polar. Doesn't contribute to charge o the polypeptide. 

Q: Which of the following is an example of protein denaturation? *       A. Amino acids fold into repea...

A: The proteins are folded into their three dimensional structure via four levels of organizations : th...

Q: After Drosophila DNA has been treated with a restrictionenzyme, the fragments are inserted into plas...

A: Cloning is a particular technique scientists use to make exact genetic copies of living organisms. D...

Q: Beta (B) sheets are a type of secondary structure in proteins. A segment of a single chain in an ant...

A: The beta-sheet is a type of secondary structure in which two strands are connected through backbone ...

Q: Biochemistry Question: Give one example of 5-Carben Sugar

A: Introduction: A five-carbon sugar found in the DNA is deoxyribose. It forms the central molecule in ...

Q: The figure shows that the average distance between base pairs measured parallel to the axis of a DNA...

A: DNA is composed of 2 polynucleotide strands would in a helical manner. Distance between 2 base pairs...

Q: What is meant by resistant? Give the mechanism by which organisms develop resistance.

A: Antibiotics can be classified based on the mechanism of action. These functions include the antimicr...

Q: drofofo %3D P-o-P-o- 6- o- o-P-o-P-o- -오-오 O oxidoreductase O isomerase O lyase O hydrolase O ligase...

A: The enzymes are classified into six different groups based on the reaction it catalyzes. The differe...

Q: Discuss the chemistry and occurrence of naturally occurring peptides.

A:            Amino acids are organic molecules having an amino group and an acid group. Amino acids ar...

Q: Oxidation of a thiol produces a disulfide. True or False

A:

Q: Directionality of Polynucleotide chains originates at the  ____ end, and terminates at the  _____ en...

A:

Q: Can the iodine test distinguish between amylose and amylopectin?  What would you look for?

A: Carbohydrates are an essential source of energy. It is found in almost all foods and is largely used...

Q: The cell concept CANNOT apply to ____

A: Cell theory (a unifying principle of biology) was formulated by Schleiden and Schwann. Cell theory s...

Q: H-bonds a

A: here they are talking about the secondary structure of protein. Secondary structure, the next level ...

Q: Make a rough drawing of the ATP synthase machinery within the mitochondrial membrane and specificall...

A: F1F0-ATP synthase helps in synthesis of ATP in mitochondria. Proton influx into cytoplasm of mitocho...

Q: A pyrimidine(s) with a H-bond acceptor its middle position is/are a Cytosine b Uracil c ...

A: Hydrogen bond donor is  the atom that do not provide a hydrogen atom  for hydrogen bonding. They mig...

Q: How many amino acid units do the structure below has? HN. OH OH HO A.) 5 В.) 10 О с.) 9 D.) 8 E.) 7

A: Amini acids are the building blocks of proteins linked through the peptide bond (CO-NH). There are 2...

Q: In what order would the following proteins eluted from a gel filtration column of Sephadex G200: Myo...

A: Chromatography is a method of separation of specific compound from the mixture of compounds. This ca...

Q: Why phosphoglycerides can be found in the cell membrane?

A: A cell membrane surrounds all live cells. Plant and animal cells both have a cell nucleus, which is ...

Q: The illustration shows the interactions that form the tertiary structure of a protein segment. Terti...

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any ...

Q: 70 degree Celcious is the melting point of stearic acid, and 4 degree Celcius is the melting point o...

A: Fatty acids (FA) are the building blocks of the fat present in our bodies or we eat. Fats breakdown ...

Q: Which of the following best explains why enzyme catalysis is affected by a change in pH? A. Change ...

A: Enzymes are protein molecules that increase the rate of reaction by decreasing the activation energy...

Q: How does the summary equation for metabolism relate photosynthesis and cellular respiration?     Ph...

A: Carbohydrates are a major forms of energy for both animals and plants. While plants have the ability...

Q: What are nucleosides?

A: Nucleic acid are the largest biomolecules which are found in genetic information. There are two comm...

Q: MRI What does the "induced free decay" curve describe?

A: The term "free induction decay" refers to a short-lived sinusoidal electromagnetic signal that devel...

Q: Can you describe the solubility of prolamin, a protein in rice protein bodies, in isopropyl or ethyl...

A: Prolamins are considered a group of plant storage proteins which having a high proline amino acid co...

Q: hat happened to the DNA at the different temperatures (95, 75, 55 degrees)? How does Polymerase Chai...

A: DNA is a double stranded polynucleotide chain ,the double stranded structure is formed by the comple...

Q: 1. Draw the general structure of glycerophospholipids and designate the site for variation in head g...

A: Lipids are non-polar hydrocarbons, like fatty acids (FA), waxes, sterols, fat soluble vitamins (A, D...

Q: (a) From the list below, select the amino acid(s) that might by more common in the extracellular dom...

A: Amino acids are the building blocks of proteins which is linked by peptide/amide bond to form polype...

Q: How does protein form?

A: The Central dogma of molecular biology outlines the steps by which the information encoded in the DN...

Q: 14. Subject this amino acid sequence under (1) trypsin (2) chymotrypsin (3) pepsin and (4) CNBr. Gen...

A: Proteolytic enzymes are used to cleave the larger polypeptide into smaller peptide fragments. They c...

Q: What is the importance of central dogma

A: DNA contains genetic information in the form of nucleotide sequences. DNA is composed of four differ...

Q: Explain what is happening in point A in terms of the form of Alanine. What is point B? Explain what ...

A: Alanine is an Amino acid which consists of 2 acidic groups. Hence it is considered as diprotic Amino...

Q: A peptide has the following amino acid composition: 2 Met, 2 Phe, 2 Glu, 1 Arg, 1 Lys, 1 Val, 1 Leu,...

A: The amino acid sequence of a peptide is called the primary structure of a protein and determines the...

Q: Do we need to denature proteins? Why?

A: Heating, pH fluctuations, high concentrations of chemicals like urea, or reducing agents that break ...

Q: Given a tripeptide Cys-His-Lys, Cys: Pk: = 1.71; Pk2= 10.78; Pke= 8.33 His: Pk = 1.82; Pkz= 9.17; Pk...

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

Q: Which of the following pairs of sugar/s and description is/are INCORRECT? *   A. Xylose: Glycoprotei...

A: Monosaccharides are the simplest form of carbohydrates. They can be either aldose (aldehyde as the f...

Q: the different individuals involved in a clinical laboratory (their job specification -qualification,...

A: JOB SPECIFICATION Laboratory Director     QUALIFICATION and TRAINING Doctoral degree (e.g., MD or ...

Q: Which drug, depending on the dosage, can be a hallucinogen, stimulant, depressant, or painkiller? a....

A: Drugs are classified according to their effects on our bodies: - Stimulant: - Stimulant drugs enhan...

Q: Which of the following best describes an amino acid that can be used to synthesize proteins?

A: Monoprotic acids - are the acids that donates only one proton (H atom) per molecule of acid to an aq...

Q: 6. Why would the lack of lactase cause Carol so much distress? Where would the undigested lactose tr...

A: Lactose is the principle carbohydrate present in milk and consists of two sugars, glucose and galact...

Q: In a haploid, a nonsense suppressor su1 acts on mutation1 but not on mutation 2 or 3 of gene P. An u...

A: In a procedure known as synthetic rescue, a suppressor mutation is a second mutation that alleviates...

Q: Given a tripeptide Cys-His-Lys, Cys: Pk1 = 1.5; Pk2 = 10.8; PkR = 8.5 His: Pk1 = 1.6; Pk2 = 9.0; PkR...

A: Hi. Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a...

Q: All standard amino acids have an asymmetric carbon except lysine

A: Amino acids are the building blocks of proteins. They are compounds containing carbon, nitrogen, hyd...

Q: A peptide has the sequence: glu-trp-ser-gly-leu-lys-pro-gly What is the net charge of the molecule...

A:           a sequence of amino acids that are connected by a peptide bond and form a long polypeptide...

Q: C. Deepen (Pagpapalalim ng Kaalaman) Let us do the activity below. (50 mins. with provision for anal...

A: Transcription is the process of synthesis of mRNA from DNA. And the process of synthesis of protein ...

Q: Both choices B and D are correct.

A: Cholic acid which is also called as 3α,7α,12α-trihydroxy-5β-cholan-24-oic acid and represents as a p...

Q: Which statement(s) correctly describe(s) protein structures? A. All hydrophobic residues are buried ...

A: Proteins are made up of amino acids, which are the building blocks. Around 20 different amino acids ...

Q: 24. Add formal charges directly to the structures. 2+ FHF -P C-Si-C H-AI-H H CI

A: Introduction: The formal charge of an atom is the charge that is calculated for an atom in a Lewis s...