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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. - Science

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प्रश्न

   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.

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उत्तर

When a piece of thread is tightly tied around an animal’s pancreatic duct, the pancreatic juice containing digestive enzymes will not be able to reach the small intestine. The pancreatic juice contains enzymes which help in the digestion of food. In its absence (due to the blockage of the pancreatic duct), the animal would have difficulty in digesting certain food substances.

However, the pancreas being an endocrine gland releases insulin directly into the blood. Since, the main function of insulin is to maintain the blood sugar level in the body, the animal will not suffer from diabetes

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 2: Control and Coordination - Exercise 2 [पृष्ठ १२१]

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लखमीर सिंह Biology (Science) [English] Class 10
पाठ 2 Control and Coordination
Exercise 2 | Q 108 | पृष्ठ १२१

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संबंधित प्रश्‍न

 Why is the use of iodised salt advisable?


How does our body respond when adrenaline is secreted into the blood?


Why are some patients of diabetes treated by giving injections of insulin?


Where are hormones made in the human body?


Which gland secretes the growth hormone?


Name the hormones secreted by testes.


Name the hormones secreted by given endocrine glands :

Parathyroid glands


 Write the names of five endocrine glands found in the human body. Name the hormones secreted by each gland.


One of the following statements is not true about thyroxine. This is :
(a) Thyroid gland requires iron to synthesise thyroxine
(b) It regulates carbohydrate, protein and fat metabolism
(c) Iodine is essential for the synthesis of thyroxine
(d) Thyroid gland can enlarge due to lack of thyroxine


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 dramatic changes in body features associated with puberty are mainly because of the secretions of :
(a) estrogen from testes and testosterone from ovary
(b) estrogen from adrenal gland and testosterone from pituitary gland
(c) testosterone from testes and estrogen from ovary
(d) testosterone from thyroid gland and estrogen from pituitary gland


The use of iodised salt is recommended to prevent :
(a) diabetes
(b) gonorrhoea
(c) dysentery
(d) goitre


A and B are the two systems of control and coordination in the human body. The messages in system A are transmitted in the form of chemical substances C which travel comparatively slowly through the blood stream. The substances C are made in tissues D present in the head and trunk of human body. The messages in system b are transmitted very quickly in the form of electrical impulses through fibres E. The effect of messages transmitted by system b usually lasts for a much shorter time as compared to those transmitted by system A.
(a) Name the system A. What does system A consist of?
(b) Name the chemical substance C.
(c) What is tissue D? Name any five such tissues in the human body.
(d) Name the system B. What does system B consist of?
(e) Name the fibres E.
(f) State whether system A controls the working of system B or system B controls the working of system A.


The gland A is attached to the wind pipe in the human body. The gland A makes and secretes a hormone B which controls the metabolism of carbohydrates, fats and proteins in the body. The non-metal element C is necessary for the formation of hormone B. The deficiency of C in the diet can cause a deficiency of hormone B in the body leading to a disease D in which the neck of a person appears to be swollen. People are advised to use salt E in cooking food so as to avoid disease D.
(a) Name (i) gland A, and (ii) hormone B.
(b) What is the element C?
(c) Name one type of food which can provide sufficient C in the diet of a person.
(d) Name (i) disease D, and (ii) salt E.


A and B are two pairs of glands that are present in the human endocrine system. The pair A is found only in females, whereas B is present only in males. Glands A make and secrete two hormones C and D, whereas glands B make and secrete only one hormone E. In addition to hormones, Glands A make gametes F, whereas glands make gametes G.
(a) What are the glands A?
(b) What are the hormones C and D?
(c) What are the glands B? Name the hormone E.
(d) What are the gametes F and G?
(e) Which event in the life of males and females is associated with the secretion of the hormones C, D and E?


The secretion of which hormone leads to physical changes in the body when you are 10-12 years of age?


How does chemical coordination take place in animals?


Name the gland and the hormone secreted by it in scary situations in human beings. List any two responses shown by our body when this hormone is secreted into the blood.


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