Concept explainers
(a)
Interpretation: The Vitamin which acts as a water-soluble antioxidant has to be stated.
Concept introduction: Some vitamins are fat soluble and some are water soluble. Water soluble vitamins are B and C. All of the B vitamins serve as precursors for enzyme cofactors. Vitamin C is not an enzyme cofactor precursor.
(b)
Interpretation: The Vitamin which acts as a fat-soluble antioxidant has to be stated..
Concept introduction: Fat soluble vitamins are A, D, E and K and rest all vitamins are water soluble. Fat soluble vitamins can act as anti oxidants.
(c)
Interpretation: The Vitamin which is involved in process of vision has to be stated.
Concept introduction: Normal dietary intake provides a person with the precursor forms of vitamin A. Vitamin A provides visual pigment rhodopsin. The conversion of light energy into nerve impulses that are sent to the brain involves the participation of rhodopsin.
(d)
Interpretation: The Vitamin which is involved in the formation of collagen has to be stated.
Concept introduction: Vitamin C is a water soluble vitamin. It is involved in the formation of collagen.
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Chapter 21 Solutions
EBK GENERAL, ORGANIC, AND BIOLOGICAL CH
- Which of the following is True?a. Most fat-soluble vitamins serve as coenzymes.b. Water-soluble vitamins are vitamin C and the B complex vitamins.c. Water soluble vitamins accumulate in adipose tissue.d. Most vitamins can be synthesized by the body.arrow_forwardWhich of the following is NOT a physiological role of phosphorus? Select one: a. Required for ossification of bones during embryonic development b. Required for enzymatic conversions in glycolysis c. Links together ribose sugars and their associated nitrogenous bases d. Important compound required to inhibit auto-oxidation of fatty acidsarrow_forwardWhich of the following is NOT a nutrient monomer used by the body to generate ATP? a. amino acids b. nucleic acids c. fatty acids d. glucosearrow_forward
- Which of the following protein is present in nails and hair or human beings?A. Collagen B. Keratin C. Elastin D. None of the abovearrow_forwardVitamin A is derived from which of the following? A. cholesterol B. terpenes C. beta-carotene D. cholesterol E. Arachidonic acidarrow_forwardWhich of the 13 vitamins has a structure that fits each of the following characterizations? For a given characterization, more than one vitamin may qualify. a. Does not contain nitrogen b. Contains a metal atom c. Has a saturated or an unsaturated hydrocarbon chain component d. Contains one or more carboxyl (-COOH) functional grouparrow_forward
- Which of the following statements is false? a. Fiber is a polysaccharide that is completely or partially indigestible by the human body. b. A complete protein contains all of the essential amino acids. c. Saturated fats contain hydrogen atoms arranged on opposite sides of the carbon-carbon double bond. d. Linoleic and linolenic acid are essential fatty acidarrow_forwardAmong the given statements, which ones are correct about the biological functions and commercial uses of carbohydrates? A. Glucose serves as the substrate for photosynthesis in plants. B. Glycogen serves as a repository of glucose in the myocytes. C. The cell wall of plants is reinforced by a polymer of beta-D-glucose. D. Lactose is widely used as filler in tablets and capsules in the pharmaceutical industry. E. Corn extract is commercially hydrolyzed to yield fructose-rich sweeteners.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
- Among the given statements, which ones are correct about the biological functions and commercial uses of carbohydrates? A. Glucose serves as the substrate for photosynthesis in plants. B. Glycogen serves as repository of glucose in the myocytes. C. The cell wall of plants is reinforced by a polymer of beta-D-glucose. D. Lactose is widely used as filler in tablets and capsules in the pharmaceutical industry. E. Corn extract is commercially hydrolyzed to yield fructose-rich sweetener.arrow_forwardIn the disease scleroderma, excessive collagen, glycosaminoglycans, and glycoproteins are produced and deposited in tissues throughout the body. Predict the effects of this disease?arrow_forwardCarbohydrates are stored in the liver and muscles in the form of a.glucose. b.triglycerides. c.glycogen. d.cholesterol.arrow_forward