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Selina solutions for Concise Biology Class 8 ICSE chapter 5 - Endocrine System and Adolescence [Latest edition]

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Concise Biology Class 8 ICSE - Shaalaa.com

Chapter 5: Endocrine System and Adolescence

Multiple Choice questionsShort Answer QuestionsLong Answer Questions

Selina solutions for Concise Biology Class 8 ICSE Chapter 5 Endocrine System and Adolescence Exercise Multiple Choice questions [Pages 50 - 51]

Multiple Choice questions | Q 1.1 | Page 50

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

Multiple Choice questions | Q 1.2 | Page 50

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

Multiple Choice questions | Q 1.3 | Page 51

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

Multiple Choice questions | Q 1.4 | Page 51

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

Multiple Choice questions | Q 1.5 | Page 51

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

Multiple Choice questions | Q 1.6 | Page 51

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

Multiple Choice questions | Q 1.7 | Page 51

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 Class 8 ICSE Chapter 5 Endocrine System and Adolescence Exercise Short Answer Questions, Long Answer Questions [Pages 51 - 52]

Short Answer Questions | Q 1 | Page 51

What is a hormone?

Short Answer Questions | Q 2 | Page 51

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
 
Short Answer Questions | Q 3 | Page 52

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.
Short Answer Questions | Q 4 | Page 52

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    
Long Answer Questions | Q 5 | Page 52

What is the difference between an exocrine gland and an endocrine gland?

Long Answer Questions | Q 6 | Page 52

Why is pituitary gland is called “master gland”?

Long Answer Questions | Q 7 | Page 52

Briefly write about the importance of physical hygiene during adolescence.

Long Answer Questions | Q 8 | Page 52

Briefly discuss any four activities which can be practiced to overcome stress.

Chapter 5: Endocrine System and Adolescence

Multiple Choice questionsShort Answer QuestionsLong Answer Questions
Concise Biology Class 8 ICSE - Shaalaa.com

Selina solutions for Concise Biology Class 8 ICSE chapter 5 - Endocrine System and Adolescence

Selina solutions for Concise Biology Class 8 ICSE chapter 5 (Endocrine System and Adolescence) 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 Concise Biology Class 8 ICSE solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. Selina textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Concise Biology Class 8 ICSE chapter 5 Endocrine System and Adolescence are Endocrine System - Two Types of Glands- Exocrine, Endocrine, Concept of Hormone, Hormonal Glands - (Thyroid, Adrenal, Pancreas, Pituitary);, Location and Function of Hormonal Glands, Adolescence and Accompanying Changes - Physical and Emotional Changes in the Body During Adolescence, Adolescence and Accompanying Changes - Importance of Personal Hygiene, Concept of Stress Management.

Using Selina Class 8 solutions Endocrine System and Adolescence exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Selina Solutions are important questions that can be asked in the final exam. Maximum students of CISCE Class 8 prefer Selina Textbook Solutions to score more in exam.

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