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Selina solutions for Class 10 Biology chapter 9 - Endocrine Glands

Selina ICSE Concise Biology for Class 10

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Selina Selina ICSE Concise Biology Class 10

Selina ICSE Concise Biology for Class 10

Chapter 9: Endocrine Glands

Chapter 9: Endocrine Glands solutions [Page 0]

MULTIPLE CHOICE TYPE: 

A gland having endocrine as well as exocrine function is
(a) pituitary (b) thyroid (c) pancreas (d) adrenal 

MULTIPLE CHOICE TYPE: 

Exophthalmic goitre is caused due to the over activity of
(a) thymus (b) thyroid (c) parathyroid (d) adrenal cortex. 

MULTIPLE CHOICE TYPE: 

The secretion of ADH (anti-diuretic hormone) is inhibited by
(a) emotion and stress (b) nicotine (c) alcohol (d) morphine 

Chapter 9: Endocrine Glands solutions [Page 0]

Name the following: 

The three hormones produced by pancreas 

Name the following: 

The hormone produced by adrenal medulla 

Name the following: 

The condition caused by the over secretion of insulin 

Choose the odd one out from each series 

The hormones – insulin, glucagon, cretinism, thyroxine
…………………………………………. 

The hormone secreted by β (beta) cells of the islets of Langerhans 

 

Name the following: 

The hormone which increases blood pressure 

Name the following: 

The hormone causing more urine formation 

 

Name the following: 

The hormone which stimulates the entire sympathetic nervous system. 

What would a child suffer from, if there was hyposecretion from his thyroid? 

 

Choose the odd one out from each series 

The glands – thyroid, adrenal, pituitary, prostate
………………………………………… 

Choose the odd one out from each series 

The conditions – cretinism, myxoedema, goiter, scurvy
…………………………………………. 

Choose the odd one out from each series 

The hormones – insulin, glucagon, cretinism, thyroxine
…………………………………………. 

Choose the odd one out from each series 

The hormonal sources – adrenal cortex, adrenal medualla, cortisone, pituitary.
…………………………………………….. 

Identify the odd one in each of the following and mention what the rest are: 

Larynx; glucagon; testosterone; prolactin…………………………………….. 

Identify the odd one in each of the following and mention what the rest are: 

Adrenaline; penicillin; insulin; thyroxin………………………………… 

Identify the odd one in each of the following and mention what the rest are: 

Stomach ; ileum; liver; adrenaline………………………………….. 

Identify the odd one in each of the following and mention what the rest are: 

TSH; GH; ADH; Insulin…………………………………….  

Identify the odd one in each of the following and mention what the rest are: 

Iodine, cretinism, goiter, myxedema…………………………………. 

Match the items of column I with those of column II  

  Column I    Column II
1 β  (beta) cells of islets of
Langerhans
a condition due to undersecretion of
thyroxine in adults  
2 Thyroid  b Glucocorticoids 
3 Cretinism  c Exophthalmic goitre 
4 Addison's disease  d Increases heart beat 
5 Hypothyroidism  e Thyroxine 
6 Myxoedema  f Adrenal cortex 
7 Adrenaline Under secretion of
thyroxine in a
child
h Under secretion of
thyroxine in a
child

 

match the conditions in column A with the cause in column B. 

  A (Condition)    B (Cause) 
a Dwarfism and mental retardation 1 shortage of glucose in blood 
b Diabetes mellitus 2 Over secretion of growth hormone 
c Excess of glucose in blood  3 Insulin shock 
d Gigantism  4 Over secretion of thyroxine 
e Enlargement of breasts in adult males  5 Hypothyroidism 
f Exophthalmic goitre  6 Over secretion of cortical hormones 

Chapter 9: Endocrine Glands solutions [Page 0]

Mention which of the statements are true (T) and which are false (F). Give reason in support of your answer. 

Adrenaline is often described as emergency hormone 

Mention which of the statements are true (T) and which are false (F). Give reason in support of your answer. 

There are two kinds of diabetes (mild and severe) related with two different hormones. 

Mention which of the statements are true (T) and which are false (F). Give reason in support of your answer.  

Simple goiter can be prevented by using iodised salt in food. 

Mention which of the statements are true (T) and which are false (F). Give reason in support of your answer. 

Pituitary is popularly called the master gland 

Mention which of the statements are true (T) and which are false (F). Give reason in support of your answer. 

Harmones ‘obey’ the commands like ‘enough, slow down or ‘two little, speed up’ 

Mention which of the statements are true (T) and which are false (F). Give reason in support of your answer. 

Gigantism and dwarfirm in humans basically depend on the qualtity and quantity of the food eaten during early growing age. 

How do endocrine glands differ from other glands? 

Mention any two differences between a hormone and an enzyme. 

 

Do you agree with the statement – “ All hormones are chemical signals”? Yes / No . Justify your answer. 

Why is iodine as a nutrient, important to our body? 

 

If you stand to make your maiden speech before a large audience your mouth dries up and heart rate increases. What brings about these changes? 

If one adrenal gland is removed, the other one gets enlarged to some extent. How do you explain this change? 

Name the two kinds of diabetes? Mention their symptoms and the causes. 

 

People living in the low Himalayan hilly regions often suffer from goiter. What could be the possible reason for it? 

Given below is a table designed to give the names of the glands, the hormones produced, their chief functions, the effects of over secretion and under secretion in respect of thyroid, pituitary and pancreas. Fill up the blanks 1-13 

Sl. No. Source Gland cells Hormone produced Chief function Effect of over secretion Effect of under secretion 
1 (1) ………. thyroxine  (2) ……….  (3) ………. (4) ……….
2 Beta cells of Islets of Langerhans (5) ……  Promotes glucose utilization by the body cells (6) ………. (7) ………. 
3 (8) ……….  Growth hormone  (9) ……… (10) ………. Dwarfism 
4 (11) ……  Vasopressin  Increases reabsorption of water from kidney tubule (12) ………. (13) ………. 

 

Complete the following table by filling in the blanks numbers 1 to 7?  

Gland Hormone secreted  Effect on body
(1) ………. (2) ……….  Regulates basal metabolism
Pancreas ("beta" cells) (3) ………. Controls blood sugar level
(4) ………. (5) ……….  Increases heart beat
(6) ………. Thyroid stimulating hormone (7) ………. 

Complete the following table by filling in the blank spaces numbered 1 to 8: 

Gland Secretions Effect on body
(1) ……….. oestrogen (2) ………..
Alpha cells of islets of Langerhans (3) ………..  (4) ………..
(5) ……….. (6) ……….. Protruding eyes
(7) ……….. (8) ……….. Gigantism 

 

Chapter 9: Endocrine Glands solutions [Page 0]

Compare the hormonal response with the nervous response with respect to their speed, transmission and the general nature of changes brought about.  

Mention three important differences between the action of hormones and that of nerves in the regulatory mechanism of our body.

Chapter 9: Endocrine Glands solutions [Page 0]

Study the diagram given below and then answer the questions that follow: 

  

(a) Name the cells of the pancreas that produce (1) glucagon (2) Insulin
(b) state the main function of (1) glucagon and (2) insulin
(c) Why is the pancreas referred to as an exo-endocrine gland?
(d) why is insulin not given orally but in injected into the body:
(e) What is the technical term for the cells of the pancreas that produce endocrine hormones?
(f) where in the body is the pancreas located? 

Given alongside is a portion from the human body showing some important structure in ventral (front) view.
(a) Where is this portion located in the body?
(b) Name the structure numbered 1 – 3
(c) state one main function of each of the structure named above.
(d) Is there any duct to carry the secretions from the structure numbered 2? If so, give its name. 

Given alongside is an outline diagram of human body showing position of certain organs.
(a) Name the parts numbered 1 to 4
(b) what is common to all these parts in regard to the nature of their functions?
(c) Name the nutrient element which is essential for the normal working of part 2.  

 

 

Given below are two diagram (one is correct the other is some hwat incorrect) showing the transport of a hormone from its source gland/ cell to the target organ/ cell.
(a) which one has the error A or B? ……………
(b) what is the error? …………………  

 

Chapter 9: Endocrine Glands

Selina Selina ICSE Concise Biology Class 10

Selina ICSE Concise Biology for Class 10

Selina solutions for Class 10 Biology chapter 9 - Endocrine Glands

Selina solutions for Class 10 Biology chapter 9 (Endocrine Glands) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CISCE Selina ICSE Concise Biology for Class 10 solutions in a manner that help students grasp basic concepts better and faster.

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Concepts covered in Class 10 Biology chapter 9 Endocrine Glands are Difference in Endocrine and Exocrine Glands, Endocrine System -pituitary Gland, Endocrine System -thyroid Gland, Endocrine System -pancreas Gland, Endocrine System -adrenal Gland, Concept of Endocrine System.

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