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Concept explainers
(a)
Interpretation: Between water and proteins, the member which is more abundant, on a mass basis, in the human body has to be predicted.
Concept introduction: Those substances that do not contain carbon are known as bioinorganic substances and those substances that contain carbon are called bioorganic substances. In terms of mass composition for human body, bioinorganic substances are much more abundant than bioorganic substances.
(b)
Interpretation: Between carbohydrates and lipids, the member which is more abundant, on a mass basis, in the human body has to be predicted.
Concept introduction: Those substances that do not contain carbon are known as bioinorganic substances and those substances that contain carbon are called bioorganic substances. In terms of mass composition for human body, bioinorganic substances are much more abundant than bioorganic substances
(c)
Interpretation: Between
Concept introduction: Those substances that do not contain carbon are known as bioinorganic substances and those substances that contain carbon are called bioorganic substances. In terms of mass composition for human body, bioinorganic substances are much more abundant than bioorganic substances.
(d)
Interpretation: Between carbohydrates and proteins, the member which is more abundant, on a mass basis, in the human body has to be predicted.
Concept introduction: Those substances that do not contain carbon are known as bioinorganic substances and those substances that contain carbon are called bioorganic substances. In terms of mass composition for human body, bioinorganic substances are much more abundant than bioorganic substances.
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Chapter 18 Solutions
Bundle: General, Organic, and Biological Chemistry, 7th + OWLv2 Quick Prep for General Chemistry, 4 terms (24 months) Printed Access Card
- Which of the following statements about amino acids is/are incorrect? I. The formation of a dipeptide from two amino acid molecules leads to a loss of a water molecule. II. All standard amino acids can be synthesized by the organism. II. All essential amino acids are optically active. IV. Overall, naturally occurring amino acids are equally likely to be found having either an R or S configuration. V. All standard amino acids are neutral at physiological pH. II, IV, and V II, III, IV, and V II, III, and V O , I, and II O , II, and Varrow_forwardThe functionality of a substance is defined as any property, nutritional or not, that intervenes in its use. This depends on its physical and chemical properties that are affected during food processing, storage, preparation and consumption. For example: A. Bakery: the viscosity and the ability to form dough is related to the proteins of wheat gluten. B. Meat products: texture and succulence are dependent on water soluble meat proteins C. Dairy: texture and curd properties of dairy products are due to the colloidal structure of casein micelles D. Cakes (cakes) and desserts: depend on the foaming and gelling properties of the proteins in the egg white E. All are correctarrow_forwardDefine the following terms: a. sugar code b. lectin c. glycoform d. glycome e. microheterogeneityarrow_forward
- Which 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_forwardIn this time of COVID-19 pandemic, a communicable disease caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), health experts suggest an optimal intake of nutrients plays crucial roles in boosting the immune system. Concerning your knowledge on biomolecules, how do eating carbohydrates and lipids improve our physical health in combating COVID-19 and other communicable diseases?arrow_forwardPeptide Bond 1) Carbon, hydrogen, and oxygen from sugar molecules may combine with other elements to form other biomolecules. The picture above shows an example of this. Examine the model and choose ALL of the statements that accurately describe the formation of the new biomolecule. es A) Proteins are being formed. B) The monomers are amino acids. C) This is a hydrolysis reaction. D) Carbohydrates are being broken down. E) This is a dehydration synthesis reaction. Cells as a Sys (BIO.18.1) Biomolecu Hint ID: 516 © USATestprep, LLC 2021, All Rights Reserved. Read Our Blog Privacy Policy PHONE 1- 877 - 377 - 9537 | FAX1-877 - 816 - 0808 O Sign out hp %arrow_forward
- Which of the following is TRUE, if the protein pH is electrically neutral? Refer to the graph below. a. The denaturation of protein is lower than 100% b. The denaturation of protein is greater than 100% c. The protein is in native form d. The protein is completely denaturedarrow_forwardJohn has been living in an apartment all junior year, eating a lot of fast food. He has heard that it is "bad for you" because it is too high in calories and too low in essential nutrients, particularly vitamin A. John looks up the nutrient composition of two of his favorite fast-food meals (see table). 1. If John chooses the Big Mac, fries, and soda, for lunch, how many micrograms of vitamin A would he be consuming? (Hint: You first need to convert % Daily Value to micrograms of vitamin A.) Vitamin A Energy (% Daily Value) (kcal) McDonald's Big Mac 540 Medium fries 380 0.2 oda (20 oz) 240 KFC Fried chicken thigh and breast 690 2.6 Mashed potatoes and gravy 120 1.5 Soda (20 oz) 240 *Hint: first you need to look-up the daily Value for vitamin A: 900 µg (I just gave you the Daily Value). For dinner, John has 2 cups of spaghetti with meat sauce, a slice of Italian bread with 1 tsp butter, and a cup of 1% milk. 2. How much vitamin A does this provide? (use iProfile to for this solution) 3.…arrow_forwardDefine the following terms: a. enterocyte b. N-glycan c. O-glycan d. glycogen e. glycosaminoglycanarrow_forward
- True or False: a. A polysaccharide formed from beta glycosidic linkages will be used as an energy storage molecule in animals. b. The scientific process can be influenced by peer review, consumer input, and developing technology c. The small molecules that control proteins by allosteric regulation do so binding to the active site.arrow_forwardDefine the following terms:a. sterol carrier proteinb. fatty acid binding proteinc. biotransformationd. de novoe. turnoverarrow_forwardThe following statements are either True or False. Please label accordingly. a. L-Amino reductase is an enzyme. b. Allosteric enzymes are composed of two or more protein chains. Heavy metals are examples of inhibitors. They function by binding to sulfur on cysteine amino acid residues. C. d. A reversible noncompetitive inhibitor temporarily blocks an enzyme's active site. Enzymes don't denature as easily as smaller proteins when heated or stressed due to their complex secondary and tertiary structure. e. Oxidative phosphorylation is the biochemical process by which ATP is synthesized from ADP when protons cross the inner mitochondrial membrane. f. g. DNA and RNA strands differ only in the fact that DNA forms a double helix. h. There is no secondary structure in RNA strands.arrow_forward
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