Concept explainers
To determine: Whether cranberry supplements help to prevent urinary tract infections.
Introduction: Phytochemicals are naturally occurring plant chemicals that are produced either through primary or secondary
To determine: Whether a phytochemical and/or functional food offers a safe and sensible solution to improve the health.
Introduction: Phytochemicals are naturally occurring plant chemicals that are produced either through primary or secondary metabolisms. In foods, phytochemicals impart colors, aromas, tastes, and other characteristics. Several phytochemicals have biological activity in the body. Functional foods are the enriched and enhanced foods that have a positive effect on health beyond the essential nutrients.
Want to see the full answer?
Check out a sample textbook solutionChapter 13 Solutions
Understanding Nutrition (MindTap Course List)
- What is the chemical composition of pure cane sugar, equal original and splenda? and explain based on the composition the sweetness of different sugars and artificial sweeteners.arrow_forwardPhytochrome, plays an important role in flowering in many plants. It can also be used to determine when lettuce seeds germinate (shown in the figure below Which scenario(s) above produce large amounts of the active form of phytochrome? A B A & C B & Darrow_forwardFor an element to be regarded as essential, all of the following criteria must be met, except: a. No other element can perform the function. b. The element is directly involved in plant nutrition. c. The element is inorganic. d. The plant cannot complete its lifecycle without the element.arrow_forward
- Why are deficiency symptoms of immobile elements more pronounced in younger than in older leaves? Why do plants seldom exhibit deficiency symptoms of carbon, hydrogen and oxygen although they are used by the plant in large quantities? And lastly, what is the role of pH in nutrient availability?arrow_forwardWhy is it not encouraged to recommend someone a strict plant-based diet (diet consisting of only leafy green vegetables,legumes and grains)?arrow_forwardWhat are phenolics? What are the importance and uses of phenolics in plants? Discuss briefly the pharmacological effects of phenolics.arrow_forward
- What is the role of phosphorus in cell metabolism and function at whole plant level?arrow_forwardWhat are some of the potential benefits of bt corn? - What are some of the potential risks of bt corn?arrow_forwardThe high acidity of the soil means less capacity to bind positively charged ions. True or False?arrow_forward
- The Flemish physician/plant physiologist Jan Baptista van Helmont was the first to publish his claim that the growth of plants (like willow trees) requires nutrition from which environmental source? water (a hydrogen-containing source which we now designate as H2O) sucrose (a carbon-containing source which we now designate as C12H22O11) ammonia (a nitrogen-containing source which we now designate as NH3) glucose (an oxygen-containing source which we now designate as C6H12O6) methane (a carbon-containing source which we now designate as CH4)arrow_forwardAnimals typically use fats in adipose tissues for longterm energy storage, whereas plants use starch in roots. How do animals benefit from using fat? How do plants benefit from using starch? Name two plants that storeenergy for many years. How long is long-term storage for these species? What two plant parts often use fats and why? Storage tissue in enlarged roots is vascularized. How is that important to the plant?arrow_forwardThis is a beneficial but not essential nutrient in plants. Select one: a. carbon b. sulfur c. zinc d. silicon e. arsenicarrow_forward
- Understanding Nutrition (MindTap Course List)Health & NutritionISBN:9781337392693Author:Eleanor Noss Whitney, Sharon Rady RolfesPublisher:Cengage LearningBiology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning