7. What is transpiration? a. The movement of water from the root hair cells. b. The release of energy in plants. c. The evaporation of water from the leaves. d. The condensation of water from the leaves 8. Which hormone promotes seed germination? a. abscisic acid b. gibberellin c. ethylene d. auxin 9. Which of the following statements is true? a. Most reflexes travel only to the brain. b. Most reflexes travel only to the spinal cord. C. Most reflexes involve both the brain and spinal cord. d. Most reflexes involve the muscles only of neurons. 10. Sensory receptors are often the a, axons b. soma c. dendrites d. cell body

7. What is transpiration? a. The movement of water from the root hair cells. b. The release of energy in plants. c. The evaporation of water from the leaves. d. The condensation of water from the leaves 8. Which hormone promotes seed germination? a. abscisic acid b. gibberellin c. ethylene d. auxin 9. Which of the following statements is true? a. Most reflexes travel only to the brain. b. Most reflexes travel only to the spinal cord. C. Most reflexes involve both the brain and spinal cord. d. Most reflexes involve the muscles only of neurons. 10. Sensory receptors are often the a, axons b. soma c. dendrites d. cell body

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

Chapter36: Reproduction And Development In Flowering Plants

Section: Chapter Questions

Problem 6TYK

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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
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.
1. Some plants grow mostly upward and no side branches. This condition is known as A. Apical dominance B. Dwarfism C. Leaf drop D. Nastic movement 2. Which hormones is responsible for the case stated in number 1? A. Auxin B. Ethylene C. Gibberellins D. Cytokinin
Which of the following statements is false? a. Auxin and gibberellin promote stem elongation. b. Cytokinin promotes cell division in shoot tips. c. Abscisic acid promotes water loss and dormancy d. Ethylene promotes fruit ripening and abscission.
Which is the correct pairing of a plant hormone and its function? salicylic acid: triggers synthesis of general defense proteins brassinosteroids: promote responses to environmental stress cytokinins: stimulate stomata to close in water-stressed plants gibberellins: slow seed germination ethylene: promotes formation of lateral roots
The nutritive tissue in the seeds of flowering plants that is formed from the union of a sperm cell and two polar nuclei is called the (a) plumule (b) endosperm (c) cotyledon (d) hypocotyl (e) radical
7. Which of the following is correct about plant shoots?a. Plant shoots are negatively phototropic and positively gravitropic.b. Plant shoots are negatively hydrotropic and positively gravitropic.c. Plant shoots are positively phototropic and negatively gravitropic.d. Plant shoots do not display any major tropisms.8. In an unevenly irrigated soil, how would auxins affect the growth of theroot and the stem of a plant?a. The root would grow in the direction where water is abundant andso would the stem.b. The root would grow in the direction where water is abundantwhile the stem would grow upwards.c. The root would grow in the direction where water is abundantwhile the stem would grow in the opposite direction.d. Both would grow without changing direction regardless of theabundance of water.
6. Which of the following is correct about plant roots? a. Plant roots are positively phototropic and negatively gravitropic. b. Plant roots are negatively phototropic and positively gravitropic. c. Plant roots are positively hydrotropic and negatively gravitropic. d. Plant roots do not display any major tropisms. 7. Which of the following is correct about plant shoots? a. Plant shoots are negatively phototropic and positively gravitropic. b. Plant shoots are negatively hydrotropic and positively gravitropic. c. Plant shoots are positively phototropic and negatively gravitropic. d. Plant shoots do not display any major tropisms. 8. In an unevenly irrigated soil, how would auxins affect the growth of the root and the stem of a plant? a. The root would grow in the direction where water is abundant and so would the stem. b. The root would grow in the direction where water is abundant while the stem would grow upwards. c. The root would grow in the direction where water is abundant while…
3.Which hormone promotes ripening of fruits? Read and analyze the question and choices CAREFULLY; more importantly, ALWAYS CHOOSE the BEST answer. Abscisic acid Ethylene Gibberellins Auxin
7. Which of the following is correct about plant shoots? a. Plant shoots are negatively phototropic and positively gravitropic. b. Plant shoots are negatively hydrotropic and positively gravitropic. c. Plant shoots are positively phototropic and negatively gravitropic. d. Plant shoots do not display any major tropisms. 8. In an unevenly irrigated soil, how would auxins affect the growth of the root and the stem of a plant? a. The root would grow in the direction where water is abundant and so would the stem. b. The root would grow in the direction where water is abundant while the stem would grow upwards. c. The root would grow in the direction where water is abundant while the stem would grow in the opposite direction. d. Both would grow without changing direction regardless of the abundance of water. 9. Which of the following best describes tropism? a. Tropism is the response of a plant to grow toward or away from a stimulus. b. Tropism is the mechanism by which a plant…
1. Consider the tradeoffs between having a living exterior with guard cells vs. a thick layer of waterproofed dead cells. How might this impact the ability of the plant to interact with the outer environment? 2. Why do some seeds undergo a period of dormancy, and how do they break dormancy? 3. Girdling is a process used to slowly kill a tree and/or to create a standing dead tree (a snag). Explain why girdling would kill a tree.
4.List the differences between tropism and nastic responses in plants.