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Concept explainers
(a)
Interpretation:
The validation of the given statement that carbohydrates are the most abundant class of bioorganic molecules on earth has to be stated.
Concept introduction:
Those substances that do not contain carbon are known as bioinorganic substances and those substances that contain carbon are called bioorganic substances. Carbohydrates are one of the essential macronutrient in our diet. Carbohydrates is the major source of energy and is important for balanced diet.
(b)
Interpretation:
The validation of the given statement that dietary intake of plant materials is the major carbohydrate source for humans and animals has to be stated.
Concept introduction:
Carbohydrates are one of the essential macronutrient in our diet. They are usually present in bread, pasta, potato, basically the starchy foods. Carbohydrates is the major source of energy and is important for balanced diet.
(c)
Interpretation:
The validation of the given statement that the plants use carbohydrates for structural elements but not as a source of energy has to be stated.
Concept introduction:
Carbohydrates are one of the essential macronutrient in our diet. They are usually present in bread, pasta, potato, basically the starchy foods. Carbohydrates is the major source of energy and is important for balanced diet.
(d)
Interpretation:
The validation of the given statement that part of the structural framework of DNA and RNA molecules involves carbohydrates has to be stated.
Concept introduction:
Carbohydrates are one of the essential macronutrient in our diet. They are usually present in bread, pasta, potato, basically the starchy foods. Carbohydrates is the major source of energy and is important for a balanced diet.
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Chapter 18 Solutions
EBK GENERAL, ORGANIC, AND BIOLOGICAL CH
- Which of the following is incorrect regarding nucleotides?a. They contain a sugar, a nitrogen-containing base, and aphosphate group.b. They are the monomers of fats and polysaccharides.c. They join together by alternating covalent bonds between thesugars and phosphate groups.d. They are present in both DNA and RNAarrow_forwardDefine the following terms: a. sugar code b. lectin c. glycoform d. glycome e. microheterogeneityarrow_forwardIdentify the biomolecules being described. (Proteins, nucleic acids, carbohydrates, lipids). C. This is formed when two sugars are joined. D. it is a biomolecule that has three rings with six carbon atoms and one ring with 5 carbon atoms. E. This is made up of nucleotides.arrow_forward
- Two amino acids of the standard 20 contain sulfur atoms. They are: a. cysteine and serine. b. cysteine and threonine. c. methionine and cysteine d. methionine and serine e. threonine and serine.arrow_forwardWhich of the following is a drawback of using base hydrolysis during amino acid composition? A. Protonation of basic amino acids. B. Dissociation of acidic amino acids. C. Denaturation of the protein. D. Racemization of certain amino acids.arrow_forwardMark the following statements as true or false. If a statement is false, correct it to make a true statement. a. Carbohydrates are the main source of fuel for the human body. b. The main storage form of glucose in the human body is starch. c. Lipids contain oxygen and are therefore polar covalent molecules. d. Steroids, phospholipids, and triglycerides are all types of lipids. e. Proteins are composed of strings of fatty acids linked by glycosidic bonds. f. Amino acids have a carboxylic group on one end and an amino group on their other end.arrow_forward
- Which of the following is FALSE about carbohydrates? a. They are essential components of the genetic material. b. They serve as supportive structural and protective components in the cell walls of bacteria and plants. c. They can act as ligands and receptors in cellular communication. d. They are generally non-polar and supply the body with fat-soluble vitamins.arrow_forwardIdentify the biomolecules being described. (Proteins, nucleic acid, carbohydrates, lipids). A. It is made up of two patty acids, an alcohol, and a phosphate group. B. It is composed of amino acid.arrow_forwardWhich of the following statements is False?a. Carbohydrates are the most efficient energy-storagemolecules by weight.b. Intrinsically disordered protein segments have mostlyhydrophilic amino acids.c. Nucleotides may act as energy-carrier molecules.d. Very acidic or salty solutions may denature proteins.arrow_forward
- Which of the following statements concerning glycolipids is true? a. All glycolipids contain sphingosine. b. All glycolipids contain one sugar residue. c. All glycolipids contain phosphatidylglycerol. d. Some glycolipids contain ceramide, while others do not.arrow_forwardProteins are synthesized from: Select one: a Fatty acids. O b. Amino acids c. Carbon, Hydrogen and Oxygen d. Carbon, Hydrogen, Oxygen and Nitrogen. le (b) and (d) are correctarrow_forwardDefine the following terms: a. prenylation b. steroid c. cardiac glycoside d. digitalis e. lipoproteinarrow_forward
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