Mastering Biology with Pearson eText -- Standalone Access Card -- for Campbell Essential Biology (with Physiology chapters) (7th Edition)
7th Edition
ISBN: 9780134780641
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece, Rebecca A. Burton
Publisher: PEARSON
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Chapter 16, Problem 19BS
Mary prescription drugs are derived from natural plant products. Numerous other plant substances, including caffeine and nicotine, have effects in the human body as well. There is also a wide array of plant products, in the form of pills, powders, or teas, marketed as herbal medicines. Some people prefer taking these “natural” products to pharmaceuticals. Others use herbal supplements to boost energy, promote weight loss, strengthen the immune system, relieve stress, and more. The U.S. Federal Drug Administration, which approves pharmaceuticals, is also responsible for regulating herbal remedies. What does the label “FDA approved” on an herbal remedy mean? How does that compare to FDA approval of a drug? The FDA website is a good place to start your research. (Note that the FDA classifies herbal remedies as dietary supplements.)
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Refer to figure 1C of the Science Article. Which methylxanthine spray produces the lowest antifeeding activity.
C
Antifeeding activity
(percent of leaf
area remaining)
40
IBMX (•): 3-isobutylmethylxanthine, synthetic
Caffeine (A): naturally present in plants
Theophylline (o): naturally present in small
amounts in tea and cocoa beans, used to
treat asthma
8-phenyltheophylline (0): synthetic, works by
a different mechanism.
0000
Ο
0 0.1 0.3
1.0
35
Methylxanthine spray (gram-percent)
IBMX
Caffeine
Theophylline
8-phenyltheophylline
A nine-year research and experimentations have successfully developed rice plants with golden hue kernels instead of the usual white kernels. What is the advantage of this modified rice plant?
Select one:
To make the plant become resistant to herbivores.
To provide sufficient rice produce due to its shorter cycle.
To add nutritional value to the rice kernels.
To allow easy harvesting and processing.
Chapter 16 Solutions
Mastering Biology with Pearson eText -- Standalone Access Card -- for Campbell Essential Biology (with Physiology chapters) (7th Edition)
Ch. 16 - Which of the following structures is common to all...Ch. 16 - Prob. 2SQCh. 16 - Complete the following analogies: a. Gametophyte...Ch. 16 - Prob. 4SQCh. 16 - During the Carboniferous period, the dominant...Ch. 16 - You discover a new species of plant. Under the...Ch. 16 - How does the evergreen nature of pines and other...Ch. 16 - Prob. 8SQCh. 16 - Plant diversity is greatest in a. tropical...Ch. 16 - Prob. 10SQ
Ch. 16 - Prob. 11SQCh. 16 - Prob. 12SQCh. 16 - Prob. 13IMTCh. 16 - Prob. 14IMTCh. 16 - Prob. 15IMTCh. 16 - In April 1986, an accident at a nuclear power...Ch. 16 - Interpreting Data Airborne pollen of...Ch. 16 - Why are tropical forests being destroyed so...Ch. 16 - Mary prescription drugs are derived from natural...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- The herbicide Glyphosate (Roundup) kills plants by inhibiting an enzyme needed for synthesis of phenylalanine. Deprived of phenylalanine, the plant cannot make the proteins it needs, and it gradually weakens and dies. Although a small amount of glyphosate is deadly to a plant, its human toxicity is quite low. Suggest why this powerful herbicide has little effect on humans.arrow_forwardGenetically modified plants can be produced by transferring desired: Cytoplasm Carbohydrates Genes Proteinsarrow_forwardMetal hyperaccumulating plants have evolved this unique phenotype because _______ Select one: a. they can be used to clean soil (phytoremedation) b. prevent herbivory (“better not touch….you’re poison….” –Alice Cooper or an unassuming insect) c. they can accumulate pricey and precious metals (cha-ching!) d. they can avoid these metals (clearly you are too focused on a summer break- enjoy it).arrow_forward
- Plants make their own essential elements to complete their life cycle. We have figured out which elements are essential by using hydroponic culture, which involves growing plants in clay instead of soil. Micronutrients of plants include carbon, oxygen, and hydrogen. Plants only require a small amount of macronutrients which include zinc, copper, and iron. There are 4 mistakes in this paragraph, rewrite it to be correct.arrow_forwardCattle in industrial dairy farms are typically given rBST, an animal hormone that increases a cow’s milk production. There is concern that such hormones may have unforeseen effects on milik-drinking humans. Why is there much less concern about plant hormones in the plant foods we eat?arrow_forwardA supplement taken by many Americans to aid in lowering serum cholesterol levels is garlic. It has a potential herb-drug interaction with what? O Vitamin E supplements O Digitalis O Antidepressants O Anticoagulantsarrow_forward
- Agricultural biotechnologists have developed genetically modified tomato plants in which ethylene production is blocked. Why might such a plant be valuable to tomato growers?arrow_forwardHow do you know that there will not be any long-term consequences to humans or animals from the consumption of food or feed that contains products from biotechnologically enhanced plants?arrow_forwarddiscuss five (5) plant hormonesarrow_forward
- Lavendar (Lavandula spp.) Where is the species native to and what type of plant is it? Is the plant currently used in modern medicine (i.e. current status)(provide examples of medications that use Lavendar)? What medicinal properties does it have? What ailments does it treat? Please be detailed in your answer.arrow_forwardList five main groups of natural plant growth regulators. Write a note ondiscovery, physiological functions and agricultural/horticultural applicationsof any one of them.arrow_forwardIdentify in what body part of these plants do they store energy? 1. Guava 2. Patani 3. Mabolo 4. Garlic 5. Cactus 6. Onion 7. Chico 8. Orchid 9. Ginger 10. Strawberry 11. Cassava 12. Okra 13. Grapes 14. Carrots 15. Gabi 16. Bottle gourd 17. Bitter gourd 18. Sugar cane 19. Spinach 20. Asparagusarrow_forward
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