Chitin is a chemically modified hexose. Its function in living systems is not as a source of ATP but for support/protection. Why is this so?
Q: a)What Group? (Carb, Lipid, Protein, or Nucleic Acid). b)Within the group, how would you classify it...
A: Biomolecules are the organic molecules that are essential for life. These include carbohydrates, lip...
Q: Given that the molar extinction coefficient of lysozyme is 37200 Abs M-1cm-1, calculate the absorban...
A: According to the Lambert Beer's law: Absorbance = (extinction coefficient) x (concentration) x (path...
Q: how monosaccharides attach to the pentasaccharide core?
A: Monosaccharides are simple sugar having usually carbon range from 3 to 7 carbons. Monosaccharides c...
Q: 1. Explain why fats and steroids, which are structurally very different, are both classified as lipi...
A: Life on earth is supported by the interaction of non-living molecules and produces an important biol...
Q: The metabolism of alcohol pathway is showed in the figure characterized by biotransformation of: (F...
A: Metabolism- The primary enzyme involved in the metabolism of alcohol is ADH( Alcohol dehydrogenase)...
Q: 1. The general chemical formula of carbohydrate is: (in 1 to 3 sentences, explain why this is your a...
A: Disclaimer: "Since you have posted multiple questions, we will solve the first question for you. If ...
Q: D. F. G H. Important Values Volume/ml (Caffeine) Intensity 2 Caffeine Buffer (Caffeine] (ASA] 150 pp...
A: Here Stock concentration of Caffeine given is 150PPM To convert this to µg/ml 1µg/ml = 1PPM 150PPM =...
Q: III. Acrolein Test (Record the odor; write pungent or not pungent) Glycerol Coconut Oil Paraffin Oil...
A: Acrolein Test: A test to detect the presence of glycerol and other fat. Here a dehydrating agent Pot...
Q: What is RT-PCR coupled to Southern hybridization
A: Reverse transcription PCR (RT-PCR) - RNA molecules get converted to complementary DNA (cDNA) molecul...
Q: What is the intracellular voltage for Cl- if the intracellular concentration was 5 mM and the extrac...
A: The Nernst equation enables the calculation of the potential that will be established across the mem...
Q: 1. Differentiate starch from cellulose and carb 2. In which solvents or solutions will a lipid be a....
A: Since, you have posted a question with multiple sub-parts, we will solve first three sub-parts for y...
Q: Provide more than one reason why liquid soaps or body washes are better than regular bar soaps. 2. L...
A: 1. Bar soaps- works by dissolving the dirt on the surface of your skin as sweat and dirt mix with yo...
Q: What are the glycosidic linkages in this structure
A: A glycosidic bond, also known as a glycosidic linkage, is a form of covalent binding that connects t...
Q: The estimated energy need for a moderately active 16-year-old male is 2,800 kilocalories/day; for a ...
A: Food is made up of a wide range of nutrients including carbohydrates, fats, proteins, vitamins, mine...
Q: Define the following terms briefly as they relate to the experiments Cite an example for each using ...
A: Carbohydrates are large biomolecules composed of carbon, hydrogen and oxygen. Carbohydrates are clas...
Q: Draw (be specific on the structures of each component in the cycle) and explain the entire process o...
A: The citric acid cycle is also known as the TCA cycle. It occurs in the matrix of mitochondria. It in...
Q: Draw (be specific on the structures of each component in the cycle) and explain the entire process o...
A: The citric acid cycle, is a catabolic pathway and is also known as the tricarboxylic acid cycle and ...
Q: Which of the following are repeating disaccharides of polysaccharides are often found in mucus and f...
A: Carbohydrates are classified as monosaccharides, oligosaccharides, and polysaccharides based on the ...
Q: In the formula for sucrose (structure shown above), the bottom ring is pyranose. True or False?
A: A molecule synthesized by living organisms or cells is referred to as a "biomolecule." Carbohydrates...
Q: This is a reducing tetrasaccharide and is made up of 3 different monosaccharides True False
A: Given tetrasaccharide - Alpha(1,6) glycosidic linkage between 1st and 2nd monomer;2nd and 3rd monome...
Q: Draw the Haworth structure of the tetrasaccharide:
A:
Q: How do proteins regulate fluid balance? A. Proteins repel water. B. Proteins attract water. C....
A: Protein is a necessary macronutrient, but not all protein-rich foods are made equal. Protein may be ...
Q: A) The sequence of the atoms in the polypeptide backbone does not vary between different proteins. B...
A: Protein accounts for more than half of the dry weight of a cell. Proteins are thus a diverse and pro...
Q: "Although PTC is not found in nature, the ability to taste it correlates strongly with the ability t...
A: This is a hereditary feature, according to PTC, and non-taster status has been connected to a number...
Q: CH3CSCOA "0,CCH2CSCOA
A: In the given reaction acetyl-CoA is converted into malonyl-CoA and this reaction occurs during fatty...
Q: 9. Compare the energy cost, in ATP equivalents, of synthesizing stearate from mitochondrial acety...
A: Stearate is a 18 carbon saturated fatty acid. Lets first look at the amount of ATP equivalents requi...
Q: B. Calculate the concentration of the reducing sugar in the 50.0 mL sample in mg/mL. Apply Beer-Lamb...
A: A reducing sugar is any sugar that is capable of acting as a reducing agent.
Q: The amino acid that lacks a backbone NH for bond formation to backbone CO group (due to the presence...
A: Amino acids commonly called alpha-amino acids because of a primary amino group(-NH2 ) and a carboxyl...
Q: Other cell membrane molecules include a compound called __________ , which functions to provide flui...
A: Every organism is either made up of a single cell or multiple cells. However, the basic unit of all ...
Q: OH HỌ HO OH но OH но но- но но ÓH This sugar is non-reducing O True O False
A: Sugars are carbohydrates, they are monosaccharides, disaccharides, tri-saccharrides, oligosaccharide...
Q: 2.) Sucrose + Copper (II) Acetate/Acetic Acid
A:
Q: Chemical properties of fatty acids. Determination of the titer of higher fatty acids in solution. Au...
A: Fatty acids play an important role of fat in our bodies and food. Fats are broken down into fatty ac...
Q: QUESTION 8 Amino Acids that carry a positive charge of +1 at pH 7 are (Think about it - don't rush t...
A: When many amino acids are joined with each other by a peptide bond they form a polypeptide...
Q: Differentiate between fibrous and globular proteins
A: On basis of shape and solubility, Proteins can be classified into two categories:- 1.Fibrous ,eg., ...
Q: Fill in the blanks with the numerical answer only: Number of electrons generated in oxidation of 1 g...
A: In cellular aerobic respiration, cell break glucose molecule into pyruvate (Glycolysis) which then c...
Q: Which of the following correctly describes the 3 amino acids that are most likely to undergo phospho...
A: Amino acids are the organic compounds containing amino and carboxylate functional groups along with ...
Q: 1. Arachidonic acids a. Linoleic polyunsaturated omega-6 fatty acid is its starting material b. Sphi...
A: “Since you have asked multiple questions, we will solve the first question for you. If you want any ...
Q: I want to look the concentration values from these absorbance readings in order to make a graph of c...
A: The Lambert-Beer law states that the light absorbed by a compound is dependent on the concentration ...
Q: Identify the amino acid shown below. (Note: single letter code is provided as answer) H. H,N-C-COOH ...
A: Amino acids are chemical molecules that combine to produce proteins and are hence known as building ...
Q: When a SBIA021 student measured the pH of 1.0M HCI, the student obtained a pH meter and failed to ne...
A: Either separate reference and pH electrodes or a single combination electrode are used in pH metres....
Q: Experiment No. 3 Hydrolysis of Carbohydrates REPORT SHEET DATA AND RESULT: Hydrolysis of Disaccharid...
A: Carbohydrates are present in plants and animals and they play important structural and metabolic rol...
Q: he doctor ordered Ancef 225mg IM every 8 hours. You have on hand a 1 gram vial with the instruction...
A: It is important for patient safety that you should accurately calculate an appropriate dose of a dru...
Q: an you please correct my answers? I have answered each questions. Answers can be found after the que...
A: Carbohydrates are sugars that provide energy for our body, It is composed of organic compounds like ...
Q: In the following diagram of a portion of a protein, label the types of interactions that are shown. ...
A: Proteins are the polymers of L-amino acids. The structure of proteins is divided into four levels of...
Q: Biochemistry Question
A: “Since you have posted multiple questions with multiple sub-parts, we will solve the first question ...
Q: Ninhydrin Test Samples used: Egg Albumin Gelatin Dispersion Added reagent: Ninhydrin Solution ...
A: Ninhydrin is a general test for proteins and amino acids. It degrades amino acids into aldehydes, am...
Q: Write a description of the physical characteristics of the isolated starch and glycogen. Provide the...
A: Physical characteristics are observable characteristics of a substance. Starch and glycogen are homo...
Q: How many net ATP molecules are produced during the reactions of photosynthesis for each molecule of ...
A: The dark reaction or light independent reaction of photosynthesis reduces carbon dioxide to glucose....
Q: Assay of Serum Alkaline Phosphatase. Serum component of blood is preferred to be use than plasma, wh...
A: Alkaline phosphatases are located on the outer layer of the cell membrane and catalyzes the hydrolys...
Q: Histones are proteins found in eukaryotic cell nuclei, tightly bound to DNA, which has many phosphat...
A: Proteins are large and complex molecules playing different critical roles in our body. They perform ...
1. Chitin is a chemically modified hexose. Its function in living systems is not as a source of ATP but for support/protection. Why is this so?
2.
Here is a portion of a cell membrane.
By percent weight it is composed of
Approximately 50% protein
40% lipid and
10% carbohydrates
Based on this data, what can you deduce
about the function of each macromolecule?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- 1. Theoretically, a protein could assume a virtually infinite number of configurations and conformations. Suggestseveral features of proteins that drastically limit the actual number. 2. What are the greatest structural features that differentiate sphingolipids from phosphoglycerides? 3. High levels of glucose-6-phosphate inhibit glycolysis. If the concentration of glucose-6-phosphate decreases,activity is restored. Why?Here is a portion of a cell membrane. By percent weight it is composed of Approximately 50% protein 40% lipid and 10% carbohydrates Based on this data, what can you deduce about the function of each macromolecule?23. The cell membrane is made of a bilayer of.. A. triglycerides with their nonpolar tails facing toward the center of the cell B. triglycerides with their nonpolar tails facing outward to the exterior of the cell C. glycerophospholipids with their nonpolar tails facing toward the center of the cell D. glycerophospholipids with the nonpolar tails facing outward to the exterior of the cell
- 1. Draw (or insert) the general formula of an amino acid and label the four components. Which one gives the molecule its functional role? 2. What determines the three-dimensional structure a protein will have in the cell? 3. How is the structure of a protein related to its function in the cell? Be specific and give an example.3. Proteins are important for numerous functions in a cell and their activity/function is dependent on their structure. Each protein folds into its respective structure and ionic bonds between ions in side chains of proteins drives protein folding as shown by the oppositely charged ions in the figure below. 15 H .O H N Protein Draw a picture similar to the one shown above to show what will happen to such interactions when the pH increases. Show how this impacts protein structure. (Hint: Is the hydrogen ion concentration high or low? Note that hydrogen ions can be added or lost into molecules depending on the pH and that the NH3* is affected in this case.) Draw a picture similar to the one shown above to show what will happen to such interactions when the pH decreases. Show how this impacts protein structure. (Hint: Is the hydrogen ion concentration high or low? Note that hydrogen ions can be added or lost into molecules depending on the pH and that the COO is affected in this case.)…2. (a) The diagram below shows the structure of a lipid. i. Which type of lipid does this structure belong to? ii. Give one example of molecule made up of this type of lipid. iii. Describe the distinct roles of this type of lipid on membrane at different temperatures. Keep your answer brief. (b) The figure illustrates the structure of a lipid. CH2-O- CH-O- CH2 i. Regarding the types of fatty acids, what is the name of this type of lipid? Give the full name, not abbreviation. ii. After hydrolysis, the fatty acid chain indicated by an arrow is released. Name this fatty acid in n-system and delta (A) designation. ii. How can the fatty acid release energy in the cells?
- 1. The chains of several cell membrane-bound proteins wind back and forth through the cell membrane, such that some parts of the protein structure are extra-cellular, some parts are intra-cellular and some parts lie within the cell membrane. Do you think the primary structure of a protein can help in distinguishing the portions of a membrane protein embedded within the cell membrane from those that are not? Justify your answer.1) Hydrogen bonds are critical to life because theyGroup of answer choices Are involved in the secondary structure of a folded protein Are critical for the properties of water Are involved in tertiary structure of a folded protein Are involved in base paring of nucleotides All of the above. 2) A transport system that moves two different solutes into the cell by diffusion (greater concentrations outside the cell than in it) could be called a(n) _______ Group of answer choices active symport active uniport active antiport passive symport passive antiport1. Researchers have discovered a new membrane protein that has three transmembrane domain αhelixes that span the lipid bilayer. a. If the lipid bilayer is 30 Å thick, what is the smallest number of amino acid residues that can be in each α-helixes for them to be long enough to span the bilayer? b. If one of the three α-helixes is titled at a 32° angle relative to an axis perpendicular to the surface of the lipid bilayer, what is the smaller number of amino acid helixes required for that helix to still span the lipid bilayer? c. How many hydrogen bonding interactions would there be in the smallest possible tilted transmembrane α-helix? d. If the tilted α-helix was a 310 helix instead how many amino acid residues would be required to span the lipid bilayer? How many amino acid residues would be required if it was a π-helix?
- Distinguish between transmembrane proteins, integral proteins, and peripheral proteins. 7. Integral proteins are often found spanning the membrane of a cell or organelle. These proteins serve as channels for specific molecules to travel through the membrane, either into or out of the cell. Indicate on the picture of the integral protein where you would most likely find amino acids with hydrophobic R-groups. Next, indicate on the picture of the integral protein where you would most likely find amino acids with hydrophilic R-groups. Explain your reasoning.1. Hydrogen bonds can form an alpha helix or beta sheet. The hydrogen atom has a partial positive because of the atom it is covalently bound to. Name the two most common atoms hydrogen bonds within biological systems that give hydrogen a partial positive charge. 2. Are the atoms named in the question above in the backbone of the protein or are they found in R groups? Which R groups? 3. Besides hydrogen, what other atom is involved in the hydrogen bonds in an alpha helix or beta sheet? In other words, hydrogen is interacting with what other atoms when it makes a hydrogen bond? 4. Write out, in order, the full names of the seven amino acids circled in the picture.2. A functional protein that is approximately 110 kDa in size has all its cysteine residues joined with disulfide bonds. It has one cysteine residue per 100 amino acids. When heated at 85°C it lost activity, but when it was allowed to cool, the activity was restored? Please answer the following questions: a) How many disulfide bonds the protein has? Show how you came up with the answer. b) What is the molecular basis for the protein behavior in restoring activity?