NCERT Chapter 6 Control and Coordination Q/Ansa

Plant Hormones Chemical Coordination in Animals Exercises

Sensitive Plant Movement (संवेदनशील पौधे में हरकत): Movement in a sensitive plant, like Mimosa pudica, is a rapid, non-directional response to touch, known as thigmonasty. This movement is due to changes in turgor pressure within the plant cells. Leg Movement (पैरों में हरकत): Movement in our legs is a voluntary action involving coordinated muscle contractions

Nervous Mechanisms (तंत्रिका तंत्र): Involve the transmission of electrical impulses through neurons, providing fast and precise control of body functions. They are responsible for immediate responses. Hormonal Mechanisms (हार्मोनल तंत्र): Involve the release of hormones into the bloodstream by endocrine glands, providing slower but sustained regulation of physiological processes. They are responsible for long-term responses.

Involuntary Actions (अस्वेच्छिक क्रियाएँ): Involuntary actions are automatic and controlled by the autonomic nervous system. They include functions like heartbeat, digestion, and breathing, which do not require conscious thought. Reflex Actions (प्रतिवर्ती क्रियाएँ): Reflex actions are rapid, involuntary responses to specific stimuli, often mediated by the spinal cord. They are designed to protect the body

Need for Control and Coordination (नियंत्रण और समन्वय की आवश्यकता): A system of control and coordination is essential for an organism to efficiently manage and integrate various physiological processes and respond to changes in the environment. It ensures that all parts of the organism work in harmony. Balance: Keeps internal conditions stable.Responds: Senses and reacts

Chemical Coordination in Plants (पौधों में रासायनिक समन्वय): Chemical coordination in plants is mediated by plant hormones like auxins, gibberellins, cytokinins, and abscisic acid, which regulate growth, development, and responses to environmental stimuli. Auxin: Bends plant towards light, stops other shoots from growing close.Gibberellin: Makes plants grow taller, wakes up seeds.Cytokinin: Keeps leaves young, allows

Spinal Cord Injury (मेरुदंड): A spinal cord injury can disrupt motor and sensory signals between the brain and the rest of the body, leading to paralysis, loss of sensation, or loss of control over certain bodily functions. Example: मेरुदंड or रीढ़ की हड्डी की चोट से पैरालिसिस हो सकता है, जिसमें व्यक्ति अपने अंगों को

Phototropism (प्रकाशानुवर्तन): Phototropism occurs when plants grow towards a light source. Auxins accumulate on the shaded side of the plant, causing cells to elongate more on that side, resulting in the plant bending towards the light. Example: जब पौधा सूरज की ओर मुड़ता है, तो यह ऑक्सिन के कारण होता है जो उसकी छाया वाली

Neuron Structure and Function (न्यूरॉन की संरचना और कार्य): Example: न्यूरॉन का मुख्य कार्य सूचना का संचार करना है, जैसे कि जब आप कुछ छूते हैं, तो सूचना आपके मस्तिष्क तक पहुँचती है। Other Question Answers 🕵️of Control and Coordination Make Notes ✒️

Function of Receptors (ग्राही का कार्य): Receptors detect stimuli (such as light, sound, touch) and send signals to the brain for interpretation. If receptors do not work properly, sensory impairments can occur, leading to issues like inability to feel pain, numbness, or loss of senses like vision and hearing. Example: यदि हमारी आँखों के ग्राही

Notes: Thought, memory, emotion, touch, motor skills, vision, breathing, temperature, and hunger are all controlled by the brain Other Question Answers 🕵️of Control and Coordination Make Notes ✒️

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