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- Describe two general chemical features that distinguish plant hor- mones from animal hormones.Briefly define what a plant hormone is. Also, explain, using an example for each, of how hormones can both work together and work against each other when they are received by a particular part of a plant. In bullet points or short paragraphs. No images.Define what a plant hormone is. Also, explain, using an example for each, of how hormones can both work together and work against each other when they are received by a particular part of a plant.
- You have been chosen as the lead student gardener for the CSUMB Future Farmers of America Club (FFAC). Your club is looking to you and your Bio211 plant experience to guide them. You arrive at the new FFAC garden plots and notice that while there are many fruits on the apple tree, they seem to remain hard, sour, and green. Your club mates need the red, sweet apples in just a few days for the apple competition. Choose the best hormone to apply and the reason supporting its use: Select one: a. Apply ethylene to the apples to increase ripening. b. Apply ethylene to slow ripening and increase chlorophyll levels. c. Apply auxin to increase parthenocarpy d. Apply gibberellins to increase fruit size. e. Apply auxins to decrease apical dominance and increase water intake.Elaborate the pros and cons of using commercial or synthetic plant hormones.discuss five (5) plant hormones
- explain the concept of signal transduction pathway and give one example in detail of a signal transduction pathway in plantsExplain the differences between plant hormones and plant growth regulatorsHormones and signal pathways Complete the following paragraph to describe signal transduction as it occurs within plants. Choices may be used more than once or not at all. Chemical signals called play an important role in a plant's ability to respond to a stimulus. These signals bind to receptors, the first step in a cellular response called a may be located in the plasma membrane, the cytoplasm, the nucleus, or the endoplasmic reticulum. The series of relay proteins or enzymes activated by the hormone binding the receptor make up the Some responses are immediate, while others require a like Ca*, to initiate a cellular response. The result of the transduction pathway is a which is often the transcription of specific genes, resulting in some measurable change. hormones reflex arc signal transduction pathway Signal transducers second messenger response Receptor proteins first messenger
- Match each hormone to its function or application. NOTE: If none of the options are correct, you MUST select #4for 'none of the above', otherwise it will be graded as incorrect Question 14 options: Auxin Giberellins Cytokinins Ethylene 1. Used in anti-aging skin creams. 2. Ripens fruit. 3. Causes stems to bend towards the light. 4. None of the aboveWhich of the following is not a characteristic of plant hormones? They are active in small concentrations They are synthesized in specific glands and tissues They are pleiotropic in their effects Plant hormones are tissue and time-specificScientists studied changes in proline, which is an indicator of plant stress and overall protein content in the corn plant when leaves had been consumed by grasshoppers. Corn plants were exposed to varying numbers of grasshoppers and compared to control plants with no grasshopper exposure. The bar graphs, with error bars, show the mean proline and protein content. The dashed lines show the proline and protein content of healthy plants 10 days prior to treatment. Which of the following statements would most likely describe the growth of corn plants in this study? When there is a decrease in the number of grasshoppers (dependent variable) measured against proline and protein content (independent variables), the corn plants would have slower growth and be smaller than the control plants. When there is an increase in the number of grasshoppers (dependent variable) measured against proline and protein content (independent variables), the growth of the corn plants would be similar…