Concept explainers
(a)
Interpretation: The validation of the pairing of retinal and Vitamin E has to be stated.
Concept introduction: Vitamin A in eyes is present as retinal, which combines with the opsin protein to aid in the vision. Vitamin E is obtained from vegetable oil, seeds and nuts. Vitamin E functions as an anti-oxidant in the human body.
(b)
Interpretation: The validation of the pairing of calciferol and vitamin D has to be stated.
Concept introduction: Vitamin D exists in several forms, vitamin
(c)
Interpretation: The validation of the pairing of tocopherol and vitamin K has to be stated.
Concept introduction: Vitamin K exists in different forms but all the forms have methylated napthoquinone structure. Some of the forms of Vitamin K are vitamin
(d)
Interpretation: The validation of the pairing of napthoquinone and vitamin A has to be stated.
Concept introduction: Vitamin A is a fat soluble vitamin. Vitamin A is found in eyes. It participates in the development of sperm. Vitamin K has napthoquinone structure to which the long side chain of carbon atoms is attached.
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Chapter 21 Solutions
EBK GENERAL, ORGANIC, AND BIOLOGICAL CH
- Precursor to vitamin A.* A. Retinol B. Retinoic acid C. Carotene D. Tocopherolarrow_forwardWhich of the following is stored in the body? a. thiamine b. phosphorous c. folic acid d. vitamin Carrow_forwardVitamin A is derived from which of the following? A. cholesterol B. terpenes C. beta-carotene D. cholesterol E. Arachidonic acidarrow_forward
- Which of the following is NOT a function of vitamin C? A. Blood clotting B. Enhances the immune system C. Good for the skin by maintaining collagen D. Enhances the absorption of ironarrow_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_forwardAnswer the following questions about the given triacylglycerol. What fatty acids are used to form this triacylglycerol? a. lauric acid, stearic acid, lauric acid b. palmitic acid, myristic acid, stearic acid c. myristic acid, lauric acid, stearic acid d. arachidic acid, stearic acid, lauric acid Answer the following questions about the given triacylglycerol. Would you expect this triacylglycerol to be a solid at room temperature? yes or noarrow_forward
- Which of the following molecules would you add to skin cells to reduce the chance of skin cancer? Select one: а. Охуgen b. Carotene c. Vitamin D3 d. Carbon dioxide e. Melaninarrow_forwardWhich of the following statements is FALSE? A. saccharin is 300 times sweeter than saccharose B. D-glucose is slightly salty and L-glucose is sweet. C. a-D-mannose is sweet and B-D-mannose is bitter D. The stereochemistry of flavor-producing agents plays an important role in the specific sensation of flavor.arrow_forwardWhich of the followings statements is false considering the properties of alkaloids: Select one: a. Some alkaloids are colored, like berberine (orange) and sanguinarine (yellow) b. Caffeine, cocaine, codeine and nicotine are water soluble, whereas others, including morphine and yohimbine are highly water soluble c. Most alkaloids contain oxygen in their molecular structure; those compounds are usually colorless crystals at ambient conditions d. Many alkaloids dissolve poorly in water but readily dissolve in organic solvents, such as diethyl ether, chloroform or 1,2-dichloroethane e. Most alkaloids have a bitter taste or are poisonous when ingestedarrow_forward
- Which of the following is NOT a structure/function claim? O a. Calcium Builds Strong Bones O b. Fat Free O c. Contains vitamins C and A for improved immunity O d. Helps support healthy hair and skinarrow_forwardBile Salts are: a. a mixture of amphipathic molecules which emulsify fatty acids in the small intestine b. enzymes present in saliva that digest proteins into amino acids c. made by the liver and secreted from the gall bladder into the duodenum d. enzymes that digest “dietary fiber” (cellulose) in the esophagus e. enzymes present in saliva that make bread taste sweet after chewingarrow_forwardAll of the following nutrients play a critical role in immunity and wound healing except: a. zinc. O b. vitamin C. C. vitamin A. O d. thiamine.arrow_forward
- Essentials of Pharmacology for Health ProfessionsNursingISBN:9781305441620Author:WOODROWPublisher:Cengage