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Chapters
2: Reproduction in Plants
3: Reproduction in Humans
4: Ecosystems
▶ 5: Endocrine System and Adolescence
6: The Circulatory System
7: Nervous System
8: Diseases and First Aid
9: Food Production
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Solutions for Chapter 5: Endocrine System and Adolescence
Below listed, you can find solutions for Chapter 5 of CISCE Selina for Concise Biology [English] Class 8 ICSE.
Selina solutions for Concise Biology [English] Class 8 ICSE 5 Endocrine System and Adolescence Multiple Choice questions [Pages 50 - 51]
Put a tick mark (✓) against the correct alternative in the following statement:
Cortisone hormone is secreted by:
Medulla of adrenal
Cortex of adrenal
Pancreas
Thyroid
Put a tick mark (✓) against the correct alternative in the following statement:
Which one of the following hormones stimulates the breakdown of glycogen in the liver into glucose:
Insulin
Adrenaline
Glucagon
Thyroxine
Put a tick mark (✓) against the correct alternative in the following statement:
Which one of the following hormones converts excess of glucose into glycogen:
Glucagon
Thyroxine
Insulin
Adrenaline
Put a tick mark (✓) against the correct alternative in the following statement:
Which one of the following glands is also called master gland:
Pituitary gland
Adrenal gland
Thyroid gland
Ovary
Put a tick mark (✓) against the correct alternative in the following statement:
The emergency hormone to face the danger or to fight is secreted by:
Islets of Langerhans
Adrenal cortex
Pituitary
Adrenal medulla
Put a tick mark (✓) against the correct alternative in the following statement:
Which one of the following endocrine glands produces its hormone in large quantities as a result of emotional stimulation?
Thyroid
Islets of Langerhans
Adrenal medulla
Adrenal cortex
Put a tick mark (✓) against the correct alternative in the following statement:
In humans, increased thyroxine production results in :
Increased metabolism
Decreased metabolism
Dwarfism
Cretinism
Selina solutions for Concise Biology [English] Class 8 ICSE 5 Endocrine System and Adolescence Short Answer Questions [Pages 51 - 52]
What is a hormone?
In the table given below, fill in the blanks by naming endocrine glands, the hormones they secrete, and the function they perform, in a normal person.
| S.No. | Name of the gland | produced | Function |
| 1. | Thyroid | ||
| 2. | Insulin | ||
| 3. | Preparing the body for action | ||
| 4. | (i) Growth hormone (ii) Thyroid-stimulating hormone |
Match the items in Column A with those in Column B. Column A Column B
| Column A | Column B |
| (a) Cretinism | (i) Pituitary gland |
| (b) Diabetes mellitus | (ii) Under the development of infant |
| (c) Increased metabolic rate | (iii) Oversecretion of thyroxine |
| (d) Simple goitre | (iv) Insufficient iodine in food |
| (e) Growth hormone | (v) Insufficient insulin in the blood. |
Name the source and the function of each of the following hormones:
| Hormone | Source | Function |
| (a) Glucagon | ||
| (b) Thyroxine | ||
| (c) Adrenaline | ||
| (d) Insulin | ||
| (e) Cortisone |
What is the difference between an exocrine gland and an endocrine gland?
Why is pituitary gland is called “master gland”?
Briefly write about the importance of physical hygiene during adolescence.
Briefly discuss any four activities which can be practiced to overcome stress.
Solutions for 5: Endocrine System and Adolescence
Selina solutions for Concise Biology [English] Class 8 ICSE chapter 5 - Endocrine System and Adolescence
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Concepts covered in Concise Biology [English] Class 8 ICSE chapter 5 Endocrine System and Adolescence are Chemical Coordination, Development of Sexual and Secondary Sexual Characters, Adolescence and the Related Psychological Changes, Types of Hygiene: Personal Hygiene, Stress Management, Human Endocrine System, Thyroid Gland, Adrenal Gland (Suprarenal Gland), Pancreas (Islets of Langerhans), Adolescence, Physical Changes, Pituitary Gland or Hypophysis Gland, Human Endocrine Glands.
Using Selina Concise Biology [English] Class 8 ICSE solutions Endocrine System and Adolescence exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in Selina Solutions are essential questions that can be asked in the final exam. Maximum CISCE Concise Biology [English] Class 8 ICSE students prefer Selina Textbook Solutions to score more in exams.
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