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Short Tricks: Chemical Coordination & Integration - 2 Video Lecture | Biology Class 11 - NEET
FAQs on Short Tricks: Chemical Coordination & Integration - 2 Video Lecture - Biology Class 11 - NEET
| 1. What is chemical coordination and integration? |  |
Ans. Chemical coordination and integration refer to the communication and regulation of various physiological functions in the body through chemical messengers called hormones. These hormones are secreted by specialized glands and travel through the bloodstream to target cells or organs, where they exert their effects.
| 2. How do hormones coordinate and integrate different body systems? | |
Ans. Hormones coordinate and integrate different body systems by binding to specific receptor molecules present on the target cells. This binding initiates a series of biochemical reactions within the cells, leading to the desired physiological response. By regulating the secretion and action of hormones, the body can maintain homeostasis and ensure the proper functioning of various systems.
| 3. What are the major glands involved in chemical coordination and integration? | |
Ans. The major glands involved in chemical coordination and integration are the hypothalamus, pituitary gland, thyroid gland, parathyroid glands, adrenal glands, pancreas, and gonads (testes in males and ovaries in females). Each of these glands secretes specific hormones that play crucial roles in regulating various physiological processes.
| 4. How do hormones affect growth and development? | |
Ans. Hormones play a significant role in growth and development by regulating cell division, differentiation, and maturation. For example, growth hormone (secreted by the pituitary gland) stimulates the growth of bones and muscles during childhood and adolescence. Similarly, sex hormones (such as estrogen and testosterone) contribute to the development of secondary sexual characteristics and reproductive organs.
| 5. How can hormonal imbalances affect the body? | |
Ans. Hormonal imbalances can have various effects on the body. For instance, an underactive thyroid gland can lead to symptoms like fatigue, weight gain, and cold intolerance due to decreased metabolic activity. On the other hand, an overactive adrenal gland can cause excessive production of cortisol, resulting in symptoms such as weight gain, high blood pressure, and mood swings. Hormonal imbalances can disrupt normal physiological functions and may require medical intervention for treatment.
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