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Chemical Coordination & Integration PPT Biology Class 11

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Coordination of 
activities in humans
Nervous 
system
Endocrine 
system
Page 2


Coordination of 
activities in humans
Nervous 
system
Endocrine 
system
Nervous System
? Transmits electrical 
impulses 
? Use the neurons to 
transmit the signal
? Signal transmission is 
fast
? Effect is localized 
Endocrine System
? Transmits chemical 
biological messengers 
Impulses 
? Use the circulatory 
system to transmit the 
signal
? Signal transmission is 
slow
? Effect is widespread 
Nervous System vs Endocrine System
Page 3


Coordination of 
activities in humans
Nervous 
system
Endocrine 
system
Nervous System
? Transmits electrical 
impulses 
? Use the neurons to 
transmit the signal
? Signal transmission is 
fast
? Effect is localized 
Endocrine System
? Transmits chemical 
biological messengers 
Impulses 
? Use the circulatory 
system to transmit the 
signal
? Signal transmission is 
slow
? Effect is widespread 
Nervous System vs Endocrine System
Endocrine glands are called 
ductless glands. 
They secrete hormones.
Hormones are non-nutrient 
chemicals act as intercellular 
messengers.
They are produced in trace 
amounts.
Page 4


Coordination of 
activities in humans
Nervous 
system
Endocrine 
system
Nervous System
? Transmits electrical 
impulses 
? Use the neurons to 
transmit the signal
? Signal transmission is 
fast
? Effect is localized 
Endocrine System
? Transmits chemical 
biological messengers 
Impulses 
? Use the circulatory 
system to transmit the 
signal
? Signal transmission is 
slow
? Effect is widespread 
Nervous System vs Endocrine System
Endocrine glands are called 
ductless glands. 
They secrete hormones.
Hormones are non-nutrient 
chemicals act as intercellular 
messengers.
They are produced in trace 
amounts.
HUMAN ENDOCRINE SYSTEM
Pituitary Gland
Pineal Gland
Thyroid Gland
Parathyroid Gland
Thymus Gland
Adrenal Gland
Pancreas
Gonads (Testis & Ovary)
Page 5


Coordination of 
activities in humans
Nervous 
system
Endocrine 
system
Nervous System
? Transmits electrical 
impulses 
? Use the neurons to 
transmit the signal
? Signal transmission is 
fast
? Effect is localized 
Endocrine System
? Transmits chemical 
biological messengers 
Impulses 
? Use the circulatory 
system to transmit the 
signal
? Signal transmission is 
slow
? Effect is widespread 
Nervous System vs Endocrine System
Endocrine glands are called 
ductless glands. 
They secrete hormones.
Hormones are non-nutrient 
chemicals act as intercellular 
messengers.
They are produced in trace 
amounts.
HUMAN ENDOCRINE SYSTEM
Pituitary Gland
Pineal Gland
Thyroid Gland
Parathyroid Gland
Thymus Gland
Adrenal Gland
Pancreas
Gonads (Testis & Ovary)
? Location - Below the thalamus & 
just above the brainstem
? It synthesizes and secretes certain 
neurohormones.
? These hormones regulate the 
synthesis and secretion of pituitary 
hormones.
? Two types of hormones are 
produced by hypothalamus:
Releasing Hormones
Inhibiting Hormones
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FAQs on Chemical Coordination & Integration PPT Biology Class 11

1. What is chemical coordination in the human body?
Ans. Chemical coordination refers to the process by which different glands in the body secrete hormones that regulate various physiological functions. These hormones are responsible for communication between different organs and tissues, ensuring proper integration and coordination of bodily processes.
2. Which glands are involved in chemical coordination?
Ans. The major glands involved in chemical coordination are the endocrine glands. These include the pituitary gland, thyroid gland, adrenal glands, pancreas, ovaries (in females), and testes (in males). Each of these glands secretes specific hormones that regulate different bodily functions.
3. How do hormones work in chemical coordination?
Ans. Hormones are chemical messengers that are released by the endocrine glands into the bloodstream. They travel to specific target cells or organs and bind to specific receptors on these cells. This binding triggers a series of biochemical reactions within the cells, leading to the regulation of various physiological processes.
4. What are the effects of hormonal imbalance in chemical coordination?
Ans. Hormonal imbalance can have significant effects on the body. It can disrupt normal bodily functions and lead to various health issues. For example, an overproduction or underproduction of certain hormones can disrupt metabolism, growth, reproduction, mood regulation, and immune function.
5. How can hormonal imbalances be treated in chemical coordination?
Ans. The treatment of hormonal imbalances depends on the specific condition and underlying cause. It may involve hormone replacement therapy, medications to regulate hormone levels, lifestyle modifications, and sometimes surgery. A thorough evaluation by a medical professional is necessary to determine the appropriate treatment approach.
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Document Description: PPT: Chemical Coordination & Integration for NEET 2024 is part of Biology Class 11 preparation. The notes and questions for PPT: Chemical Coordination & Integration have been prepared according to the NEET exam syllabus. Information about PPT: Chemical Coordination & Integration covers topics like and PPT: Chemical Coordination & Integration Example, for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for PPT: Chemical Coordination & Integration.
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