How does control and coordination takes place in plants?

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Answer

The Chemical coordination in plants occur by the action of chemicals called hormones or phytohormones.

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Control and coordination in plants take place by plant hormone like auxin . it also take place by various trophic movement example hydrotrophic ,chemotrophic , phototrophic etc.

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Control and coordination in plant is carried out by organic chemical substance called plant  hormone or phytohormone or sometime just simply as hormone.HOPE HELP U

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Control and Coordination in Plants

Plants exhibit a remarkable ability to respond and adapt to their environment. While they lack a centralized nervous system like animals, they possess specialized structures and mechanisms that enable control and coordination. Let's explore how these processes take place in plants.

Sensory Perception
Plants sense their surroundings through various sensory organs, such as:

1. Roots: The root tips contain specialized cells called root caps that perceive gravity and help the plant grow downwards.
2. Shoots: The shoot tips contain apical meristems that respond to light and gravity, enabling the plant to grow towards light and against gravity.
3. Leaves: Leaf cells have chloroplasts that detect light intensity and quality, allowing plants to optimize photosynthesis.

Chemical Signaling
Plants use chemical signals called hormones to coordinate growth, development, and responses to stimuli. Some key hormones include:

1. Auxins: These hormones regulate cell elongation, phototropism, gravitropism, and apical dominance.
2. Gibberellins: Gibberellins promote stem elongation, seed germination, and flowering.
3. Cytokinins: Cytokinins regulate cell division, delay senescence, and promote bud growth.

Signal Transmission
Plant cells communicate with each other through electrical signals and chemical signals:

1. Electrical Signaling: Cells use ion channels to transmit electrical signals, such as action potentials, through their membranes. These signals can trigger rapid responses, like leaf closure during touch or heat.
2. Chemical Signaling: Chemical signals, such as hormones or secondary messengers like calcium ions, are released by one cell and received by another. These signals can travel short or long distances through the plant.

Response Mechanisms
Plants exhibit various responses to external stimuli, including:

1. Tropisms: Tropisms are directional growth responses to environmental stimuli. Examples include phototropism (growth towards light), gravitropism (response to gravity), and thigmotropism (response to touch).
2. Nastic Movements: Nastic movements are non-directional plant movements in response to stimuli. Examples include the closing of leaves during touch (thigmonasty) or changes in leaf orientation with light intensity (nyctinasty).

Coordination through Growth and Development
Plants coordinate their growth and development through a process called organogenesis. This involves the formation of specialized organs, tissues, and structures in response to internal and external cues.

1. Apical Dominance: The apical bud at the top of a plant releases auxins that inhibit the growth of lateral buds, promoting vertical growth.
2. Flowering: Flowering is regulated by environmental cues, such as temperature and day length, as well as internal factors like hormones.
3. Senescence: Senescence is the programmed aging and death of plant cells or organs.

Similar Class 10 Doubts

is control and coordination is also takes place in viruses??

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How does chemical coordination take place in plants?

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