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Coordination in Plants Video Lecture - Class 10
FAQs on Coordination in Plants Video Lecture - Class 10
| 1. What is coordination in plants? |  |
Ans. Coordination in plants refers to the ability of plants to respond to internal and external stimuli in order to carry out various physiological and behavioral processes. It involves the integration of different plant systems and organs to ensure proper functioning and adaptation to the environment.
| 2. How do plants coordinate their growth and development? | |
Ans. Plants coordinate their growth and development through various mechanisms. Hormones play a crucial role in this coordination process. Plant hormones, such as auxins, cytokinins, gibberellins, and abscisic acid, are responsible for regulating plant growth, flowering, fruiting, and other developmental processes. These hormones are produced in specific parts of the plant and are transported to other parts, where they regulate various physiological responses.
| 3. What are the different types of plant movements? | |
Ans. Plants exhibit different types of movements, including tropisms and nastic movements. Tropisms are growth movements in response to directional stimuli, such as phototropism (response to light), geotropism (response to gravity), and thigmotropism (response to touch). Nastic movements, on the other hand, are non-directional movements that occur in response to stimuli, such as nyctinasty (sleep movements) and seismonasty (response to mechanical stimuli).
| 4. How do plants coordinate their responses to environmental stimuli? | |
Ans. Plants coordinate their responses to environmental stimuli through sensory perception and signal transduction pathways. Sensory perception occurs through specialized structures like photoreceptors for light, mechanoreceptors for touch, and chemoreceptors for chemicals. Once the stimuli are perceived, signal transduction pathways relay the information to different parts of the plant, triggering appropriate responses. These pathways involve the transmission of chemical signals or electrical signals to coordinate the plant's physiological and behavioral responses.
| 5. What are some examples of plant coordination in response to environmental cues? | |
Ans. Plants exhibit various coordination responses in response to environmental cues. For example, in response to light, plants show phototropism by bending towards the light source. They also exhibit nyctinasty, where flowers close at night and open during the day. In response to touch or mechanical stimuli, plants may exhibit thigmotropism or thigmonasty, where they change their growth direction or leaf movement. These coordinated responses help plants adapt to their surroundings and optimize their growth and survival.
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