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प्रश्न
How does chemical coordination take place in human beings?
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उत्तर
Chemical coordination takes place through hormones in human beings. Hormones instruct the brain when to pace up or slow down a particular function.
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संबंधित प्रश्न
Name the hormones secreted by the given endocrine glands and specify one function.
Thyroid
Name the hormones secreted by testes.
If sugar is detected in the urine of a person, name the disease he is suffering from.
Which one term of the following includes the other three?
thyroid, ductless gland, thymus, pituitary, ovary
Why do you need iodine in your diet?
Name the hormones secreted by given endocrine glands :
Parathyroid glands
Match the hormones given in column I with their functions given in column II :
| Hormones | Functions |
| (i) Thyroxine | (a) Causes breasts to develop in females |
| (ii) Adrenaline | (b) Causes the male to start producing sperms |
| (iii) Insulin | (c) Prepares the body for an emergency |
| (iv) Estrogen | (d) Controls the metabolic rate |
| (v) Testosterone | (e) Regulates the amount of sugar in blood |
How do hormones reach the organs they control?
Name the gland which controls the secretion of hormones from the pituitary.
Which of the following does not act as an endocrine gland as well as an exocrine gland?
(a) testis
(b) ovary
(c) pituitary
(d) pancreas
The faulty functioning of an endocrine gland can make a person very short or very tall. This gland is :
(a) thyroid
(b) pineal
(c) adrenal
(d) pituitary
The use of iodised salt is recommended to prevent :
(a) diabetes
(b) gonorrhoea
(c) dysentery
(d) goitre
The gland X which is located just below the brain in the human head secretes a chemical substance Y which controls the development of ones and muscles in the body of a person. Secretion of too little of substance Y as well as the secretion of too much of substance Y by the gland X leads to abnormal development of the body of a person.
(a) Name the gland X.
(b) What is the chemical substance Y?
(c) What happens if too little of substance Y is secreted?
(d) What happens if too much of substance Y is secreted?
(e) Name the system of glands in the human body of which gland X is a part.
A piece of thread was tied tightly around an animal's pancreatic duct. The animal subsequently had difficulty in digesting food but did not get diabetes. Explain.
Which is the target organ of both adrenaline and insulin?
(a) heart
(b) kidney
(c) liver
(d) pancreas
The secretion of which hormone leads to physical changes in the body when you are 10-12 years of age?
Write any three responses which enable the animal body to deal with a scary situation.
A doctor has advised Sameer to reduce sugar intake in his diet and do regular exercise after checking his blood test reports. Which disease do you think Sameer is suffering from? Name the hormone responsible for this disease and the organ producing the hormone.
