1. Why do plants grow tall and spindly when grown under insufficient light? Explain. (auxins, photonasty, phototropis) 2. How come when banana is stored in room temp., its yellower compared to a banana treated under refrigerator temp.? Explain. (biosynthetic pathway, low temp.- inactivate enzymes, room temp.-faster to ripen)

1. Why do plants grow tall and spindly when grown under insufficient light? Explain. (auxins, photonasty, phototropis) 2. How come when banana is stored in room temp., its yellower compared to a banana treated under refrigerator temp.? Explain. (biosynthetic pathway, low temp.- inactivate enzymes, room temp.-faster to ripen)

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter35: Plant Nutrition

Section: Chapter Questions

Problem 4TYK

See similar textbooks

Similar questions

4. Define transpiration and give some of its significance 5. How do root hairs absorb water? 6. A plant hormone was first discovered in Japan when rice plants were suffering from Bakanae disease caused by Gibberella fujikoroi. Based on this information answer the following questions: a. Identify the hormone involved in this process. b. Which property of this hormone causes the disease? 7. Name the gaseous plant hormone and describe three different actions of this hormone in plants. 8. Explain how the auxin:cytokinin ratio affects plant growth.
2. A) Define Phototropism. B) Contrast positive and negative phototropism, in terms of phototrophic bending. C) Create an experiment to determine which colors of light cause the most phototropic bending? Please answer in order and label them.
1. What is the pathway of carbon dioxide fixation 2. What are the adaptions and resistance of plant to high temperatures 3. What are the adaptions of plant growth in cold regions
1.Do you think Bangladesh is capable of doing transgenic crop research? Write your thoughts in details. 2. Write your opinion with examples on the following statement, "Plant regeneration is the response to the plant growth hormone"
Phytochrome, 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 & D
A study was conducted on the impact of phytohormones on medicinal stem explants.The stem explants were cultured onto MS media containingdifferent types of phytohormones as listed in Table below. Predict the resultsobtained after 4 weeks with justifications and conclude the results youpredicted
Sugars, oils, reisonous bodies and water are also essentials of plants. How do each of them contribute in the resistance of plants from extreme conditions?
Growers often wrap potted plants in plastic sleeves prior to shipping. If plants remain in these sleeves too long, their leaves curl and fall off. Imagine you are working at a garden center and have been asked to make a presentation to a local garden club.Unit 5 DQ Question: Explain the processes that may cause the leaves to drop and fall.
A plant mutant that shows normal gravitropic bending butdoes not store starch in its plastids would require a reevaluationof the role of _____________ in gravitropism.(A) auxin(B) calcium(C) statoliths(D) differential growth
You have heard that singing to plants helps them grow and wonder if there is any validity to thisclaim. So, you conduct an experiment using numerous plants to determine if being exposed tomusic has any effect on their growth. 16. Which of the following is an appropriate sequence of steps to follow when conducting an experiment tostudy the effects of music on plant growth?a) theory → experiment → question → conclusion → observationsb) hypothesis → question → observations → conclusion → theoryc) question → observations → hypothesis → experiment → conclusiond) question → theory → observations → experiment → conclusion 17. For this experiment, what would be the independent variable?a) music b) plant growth c) amount of water d) type of plant 18. For this experiment, each of the following would be an example of a standardized variable, except _____ .a) exposure to light b) species of plant c) type of music d) plant stem length
18.It stimulates biochemical activities that cause observable physiological responses by organisms. a.Auxin b.Hormone c.Insulin d.Gibberelin 19.Which natural methods of asexual reproduction is exhibited by ginger, fern, iris and sugarcane? a.Bulb b.Runner c.Corm d.Rhizome 24.Unlike animal hormones, plant hormones do NOT have definite target areas. a.True b.False Plant senescence is the process of aging in plants. Which plant hormone delays senescence? a. Cytokinin b. Gibberelin c. Jasmonic acid d. Brassinosteroid The following are functions of the stomata except ____________. a. close or open pores to keep the moisture content developed b. open and close the pores in the leaves for an exchange of gases c. allow the plant to take in carbon dioxide and give out oxygen for photosynthesis d. convey water and dissolved minerals from the roots to the rest of the plant
1. This hormone’s activity counters many of the growth-promoting effects of other hormones. A. Gibberellins B. Ethylene C. Abscisic Acid D. Auxin 2. these stimulate shoot elongation, seed germination, and fruit and flower maturation. A. Gibberellins B. Ethylene C. Abscisic Acid D. Auxin 3. It is the ability of plants to track time through the use of light A. Photoperiodism B. Phototropism C. Photomorphogenesis D. Phototropin