Do the atoms of silicon dioxide are arranged in crystalline or amorphous state?

Q: Calculate the pH at which the β-carboxyl group of aspartic acid is 75.0 % dissociated. The pKa of th...

A: Henderson–Hasselbalch equation: Here, the pKa is the disassociation constant of an acid.  

Q: In a typical hospital, the _________ typically generates between _________ of the revenue for the or...

A: With the advancement in technology, the treatment of any disease getting better day by day. New tech...

Q: Draw the following molecular structures: (a) disaccharide that is prominent in starch (Haworth or Ch...

A: Starch is the polymer of α-D-Glucose attached via α (1→4) glycosidic bonds. Starch is partially dige...

Q: is this question true or false

A: Entropy of a system is a measure of the disorder in the system. In 1877, Ludwig Boltzmann introduced...

Q: When training for an event, which of the following is true about nutritional needs? Complex carboh...

A: For physical training, proper nutrition and dietary need are very important. The body requires energ...

Q: What's the simple rule to predict ligand binding sites for Rossmann Fold

A: Proteins are polypeptides consisting of unbranched polymers constructed from 22 standard α-amino aci...

Q: Calculate the overall net charge of the following polypeptide at pH = 2.0Gly-Pro-Glu-Asp-Leu-His-Ile...

A: The charge calculation on peptides is carried out by looking at the ionizable groups. Charge on the ...

Q: The hydrolysis of starch was stopped when the iodine test no longer gave a blue color. Does this mea...

A: Starch is a complex carbohydrate, which is made up of amylose and amylopectin subunits. Since amylas...

Q: How do extracellular matrix proteinsand carbohydrates influence thelocalization and actions of extra...

A: The extracellular matrix is a part of tissue but not part of any cell. It holds the two cells togeth...

Q: An a-Helix (or helices) is often found at anion binding sites of different proteins. Explain this ob...

A: Helices are spring like structure which forms through the hydrogen bonding between C=O of the ith re...

Q: Draw the zwitterion for each of the following amino acids: glycine threonine glutamic acid phenylal...

A: A zwitterion is a molecule that has at least two functional groups: one having a positive charge and...

Q: Why is Fetal Hemoglobin Essential for survival of Placental animals?

A: Composition of fetal hemoglobin (Hemoglobin F) is different as compared to adult hemoglobin in human...

Q: is this question true or false

A: Free energy or Gibbs free energy is the portion of the total energy change available in a system for...

Q: Mutations in the genes of the lac operon might affect the regulation of β-galactosidase synthesis. F...

A: Operons are found in prokaryotes, in which multiple genes are expressed under single promoter and op...

Q: what is dose response curve ? explain the significance of dose response curve?

A: The dose-response curve can also be described as a dose-response relationship or exposure-response r...

Q: Which group is nonpolar and affects gene expression? Which functional group(s) shown above is (are) ...

A: Methyl group (-CH3) is nonpolar and it affects the DNA structure by methylation which causes an epig...

Q: sir i have text please make me sure can you solve my problems?

A: During covid 19, there is an increase in the amount of non-biodegradable waste such as gloves, mask,...

Q: The iodine-containing thyroid hormone thyroxine is a derivative of the amino acid—     Q  ...

A:    Thyroxine, also known as T4 is the most prevalent thyroid hormone in the body. Thyroxine contains...

Q: You are considering transport of Fe3+ out of a biological cell with a membrane potential of -60 mV. ...

A: According to change in free energy of transport equation ∆G=RT lnCinCout+ ZF∆ψ∆G =free energy change...

Q: Explain why and how cell signaling probably evolved. own words

A: Cell signaling is a process by which cells interact with the external environment or respond to the ...

Q: In many states, a 17% risk of a car accident with a blood alcoholconcentration of 0.08 is the lowest...

A: The amount of alcohol present in the bloodstream is referred to as blood alcohol concentration or BA...

Q: What is the strategy in drug design to fight AIDS?

A: AIDS or acquired immunodeficiency syndrome is caused by the human immunodeficiency (HIV) virus. It i...

Q: Which are the good carbs?

A: Carbohydrate is made up of three things:- fiber, starch and sugar.  Body can break starch and sugar ...

Q: We have stated that fatty acids cannot yield a net gain in carbohydrates in organisms that lack a gl...

A: Fatty acids are the simplest form of lipids and serve as constituents in a large number of complex f...

Q: 3. Pulmonary surfactants are molecules excreted within the lungs to reduce the surface tension of fl...

A: Alveoli are the small air sacs which help in inhalation of oxygen and exhalation of carbon dioxide i...

Q: Two peptide segments are shown below. Predict which one would have the most negative AG when going f...

A: Protein folding is a spontaneous reaction by which most of the proteins fold inside the cell without...

Q: Calculate the net charge of the peptide STEFAN at pH 14

A: PEPTIDE - STEFAN Amino acid sequence- Ser-Thr-Glu-Phe-Ala-Asn    Amino Acid pka1 pka2 Ser 2.21 ...

Q: what type of unit cell does cocaine have?

A: Cocaine is a highly addictive and illegal stimulant that is made from the leaves of the coca plant. ...

Q: 4. Direct Spectrophotometric method monitor protein solution at 280 nm, Why? What kind of cuvette is...

A: Spectrophotometry is a process in which the intensity of light is measured, which determines the pre...

Q: Illustrate with an equation the reaction of glucose, galactose, maltose & lactose with osazone t...

A: Carbohydrates are the most abundant organic molecules in nature. They are primarily composed of the ...

Q: H159 functions as general acid. What are the catalytic function of C25? (shown in figure)

A: Protease is one of several enzymes that hydrolyze the proteins. They cut the peptide bond which link...

Q: How has the use of herbicides affected agricultural productivity

A: The pesticides which are used to kill the unwanted plants are known as herbicides. In many cases, he...

Q: incorporate in your design

A: The joint where the lower jaw connects to the skull is known as the temporomandibular joint which is...

Q: Which of the following is a representation of a covalently bonded molecule that shows the relative s...

A:     Structural formula is generally used to describe the molecular structure of a chemical compound ...

Q: Write the formulas of compounds  potassium:oxygen ; 2:1

A: The substance having more than one type of molecule is known as compound. For a molecular compounds,...

Q: Identify what type of enzyme reaction happens in the following reaction & explain your answer

A: Hi! As you have posted multiple questions, I will be answering the first two questions for you. If y...

Q: At pH 10, [OH-] is—     10 M     5 M     10-10 M     10-4 M     0.0000...

A: pH is the measure of the relative amount of free hydrogen and hydroxyl ions in the water. A pH of le...

Q: In a coupled reaction, how can you tell the electron donor halfreaction from the electron acceptor h...

A: Coupled reaction is a chemical reaction with a common intermediate in which energy is transferred fr...

Q: Aldehyde and ketone functional group

A: Aldehyde functional group  Ketone functional group

Q: Describe how metabolism can be altered

A: Metabolism can be defined as the set of chemical reactions that occur in the body that help the body...

Q: could you please solve this question for me?

A: This question is based on the Henderson-Hasselbach equation. According to this equation,” when the c...

Q: 1. Looking at the graph you should be able to explain every activity of every enzyme. Please describ...

A: Enzymes are the biological catalysts that speed up the metabolic reactions that occur in the body. M...

Q: Q How much more ATP is possible from aerobicallyrespiring glucose instead of fermenting it to lactat...

A: During aerobic respiration one glucose molecule after its complete oxidation gives 30 or 32 ATP depe...