RBSE Solutions for Class 9 Physical Education Chapter 2 Human Body: Growth and Development

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RBSE Solutions for Class 9 Physical Education Chapter 2 Human Body: Growth and Development are part of RBSE Solutions for Class 9 Physical Education. Here we have given Rajasthan Board RBSE Class 9 Physical Education Chapter 2 Human Body: Growth and Development.

Board RBSE
Textbook SIERT, Rajasthan
Class Class 9
Subject Physical Education
Chapter Chapter 2
Chapter Name Human Body: Growth and Development
Number of Questions Solved 25
Category RBSE Solutions

Rajasthan Board RBSE Class 9 Physical Education Chapter 2 Human Body: Growth and Development

TEXTBOOK QUESTIONS SOLVED

Multiple Choice Questions

Question 1.
Process of Development proceeds from:
(a) Simple to complex.
(b) Complex to simple.
(c) Ordinary to ordinary.
(d) Specific to specific.
Answer:
(a).

Question 2.
Adolescence changes are:
(a) faster in boys than in girls.
(b) similar in boys and girls.
(c) faster in girls than in boys.
(d) visible only in girls
Answer:
(c).

Question 3.
One of the principles affecting development is:
(a) Running
(b) Sleeping
(c) Walking
(d) Heredity and Environment
Answer:
(d).

Question 4.
Process of development continues from infancy to
(a) Childhood
(b) Adolescence
(c) Adulthood
(d) Death
Answer:
(d).

Short Answer Type Questions

Question 1.
What are the gender effects in the process of growth and development?
Answer:
Generally, male child is taller than the female child at the time of birth. Till the age of 10-11 years, girls grow faster than the boys and their physical structure is almost similar. As they enter adolescence age differences can be seen in their structure and behaviour.

Question 2.
Write any three differences between growth and development?
Answer:

  1. Growth is quantitative i.e., expansion in size, shape, height, weight etc. while development is qualitative i.e., expansion in strength, stamina, efficiency etc.
  2. Growth stops with maturity, while development continues throughout the life.
  3. Growth is a step towards the whole process of evolution while development indicates all types of changes in the man.

Question 3.
What does development mean?
Answer:
Development is the evolutionary process of gradual changes in the set direction. Child development is that area of knowledge which tells us how children change over a period of time, how they learn to speak, sit, walk, read and write.

Question 4.
What are the characteristics of adolescence?
Answer:
Characteristics of adolescence are as follows:

  1. Physical changes:
    In girls, the changes are breast development and menstruation. In boys, physical structure and looks start changing between 14 to 15 years of age.
  2. Hypothetical:
    The adolescents live in the world of imaginations.
  3. Puberty:
    Boys are more prone to sexuality than the girls.
  4. Overpowered by emotions:
    Sudden and unpleasant changes create in them the feelings of insecurity, fear, anger, worry etc. They want to do something adventurous.

Question 5.
What does the term Growth imply?
Answer:
Growth indicates the expansion of size and shape of the organs, height and weight of the muscles, bones and the formation of blood. This process of growth begins with the inception of pregnancy and continues till maturity.

Long Answer Type Questions

Question 1.
Which are the principles or basis of development? Explain them with the help of an example.
Answer:
Principles of development are as follows:

  1. It has its uniqueness.
  2. It is based on heredity and environment.
  3. It proceeds from simple to complex.
  4. It takes place constantly and unabated.
  5. It is faster in the early phases of life.
  6. Individuals differences influence development.
  7. It is a wholesome process.
  8. Rate of development differs from person to person.

Applying principles of development to the players. Player’s development takes place in a specific and unique way. It is influenced by his heredity and environment. He first acquires rudimentary knowledge of the game and then gradually proceeds towards complexities of the game. A player continues to develop till he attains physical, mental, social and emotion perfection. Some players attain success at faster rate than others which can be forecast by observing his aptitudes, interests, inclination, concentration etc. in the early days.

Question 2.
Point out the differences between Growth and Development.
Answer:
Differences between growth and development are as follows:

  1. Growth is quantitative i.e., expansion in size, shape, height, weight etc. while development is qualitative i.e., expansion in strength, stamina, efficiency etc.
  2. Growth stops with maturity, while development continues throughout the life.
  3. Growth is a step towards the whole process of evolution while development indicates all types of changes in the man.
  4. Growth is indicative of change in any organ of the body or its behaviour. Development indicates wholesome changes in the man collectively.
  5. Changes due to growth can be measured, changes due to development can only be. judged in this behaviour and practices.
  6. Growth is clearly visible to every naked eye whereas, development is known generally by conducting tests, interviews, sample survey etc.
  7. Growth does not necessarily mean development too, i.e., one may put on weight but not necessary that his efficiency and stamina also increases.
  8. Development can be possible without growth i.e., without changing weight, height, shape, etc. one can develop his physical and mental abilities, emotional behaviour and social effectiveness.

Question 3.
What are the phases of Development? Explain them briefly.
Answer:
Phases of development are as follows:

  1. Infancy (0-3 years): Its characteristics are:-
    1. Very fast development of size, shape, weight, height alongwith mental, social and emotional behaviour.
    2. The child is fully dependent on others.
    3. The child is very selfish and shows unsocial behaviour.
    4. The child wants everything for himself/herself without considering needs of others.
  2. Childhood (6 to 12 years): Its characteristics are:
    1. The child grows and develops at slow rate.
    2. The child starts feeling pleasure in handling his/her own needs.
    3. The child starts socialising by sharing his/her toys with others.
    4. The child starts expressing his/her emotions to the society and learns to balance and control his/her emotions.
  3. Adolescence (12 to 20 years): Its characteristics are:-
    1. The adolescent undergoes physical changes such as breast development and menstruation in girls and physical structure, looks and the general appearance in boys.
    2. The adolescents live in their hypothetical world. Aim at something beyond their access and disappointed on failure.
    3. At this stage boys are more prone to sexuality than the girls. Boys and girls become the blind followers of love.
    4. They are overpowered by emotions and want to do something adventrous.
  4. Adulthood (21 to 40 years): Its characteristics are:-
    1. At this stage, person accepts the responsibility.
    2. They make their own decisions.
    3. Inner conflicts are reduced.

Question 4.
Which factors influence growth and development?
Answer:
Factors influencing growth and development are as follows:

  1. Heredity:
    The genes of parents determine the blood group, height, contours and features, intelligence, traits, other mental behaviour, etc.
  2. Environment:
    All the external conditions, such as family environment, pure water and air etc. leave a great impact on the physical and mental health of the child.
  3. Food and nutrition:
    A balanced diet with proper dose of nutrients like proteins, vitamins, carbohydrates, fats, minerals etc. is essential for proper growth of the child.
  4. Diseases:
    Diseases retard the growth and development of the child.
  5. Gender effect:
    Generally, male child is taller than the female child at the time of birth. The girl grows faster than the boys till the age of 10-11 years.
  6. Recreations:
    Happiness, pleasures, love, recognition, laughter etc. lead to mental and physical development.
  7. Physical ailments:
    Any sort of physical ailment retard mental, emotional and social faculties.
  8. Accidents:
    Accidents during early childhood may have direct or indirect effect on development at later stages of life.

ADDITIONAL QUESTIONS SOLVED

Multiple Choice Questions

Question 1.
Development leads to the evolution of
(a) weight
(b) organ size
(c) mental awareness
(d) organ shape
Answer:
(c).

Question 2.
Generally with the growing age hardly any change is witnessed in the
(a) mental abilities
(b) emotional behaviour
(c) social effectiveness
(d) shape of an individual
Answer:
(d).

Question 3.
Which-of the following cannot forecast the success or failure of a player?
(a) Concentration
(b) Aptitude
(c) Interest
(d) Size
Answer:
(d).

Question 4.
Which of the following does not influence growth and development?
(a) Intelligence
(b) Way to walk
(c) Recreations
(d) Heredity
Answer:
(b).

Question 5.
Which phase of development is named as the ‘Golden age’?
(a) Adolescence
(b) Childhood
(c) Adulthood
(d) Infancy
Answer:
(a).

Short Answer Type Questions

Question 1.
How can development be possible without growth?
Answer:
Generally with the growing age there is hardly any change in the weight, height, size and shape of the child but there is a constant development of his physical and mental abilities, emotional behaviour and social effectiveness.

Question 2.
What are the influence of vitamins in our growth,and development?
Answer:
Vitamins accelerate the vitality and resistance of the body. For example, vitamin A is essential for good vision and healthy skin, vitamin B assists in keeping teeth and bones strong, vitamin C is very essential for immunity etc.

Question 3.
What are the characteristics of infancy?
Answer:
Child’s organs grow and develop at very fast rate. At this stage, the child fully depends on others and behaves in a very selfish and unsocial way. The child wants everything and does not care for needs of others.

Question 4.
Define development in the views of James Draver.
Answer:
Development is a constant process of progressive changes in the living being from the time of conception till adulthood.

Question 5.
How does the environment influence the growth and development of a child?
Answer:
Environment comprises living conditions, standard of living, availability of pure water to drink and clean air to breathe. These factors directly or indirectly influence the growth and development of a child.

Long Answer Type Questions

Question 1.
What is the meaning of development? Explain how heredity, recreations, accidents and diseases affects growth and development?
Answer:
Development is the evolutionary process of gradual changes in the set direction.
Heredity:
Heredity is transfer of biological characteristics like blood group, facial features, height, weight, mental faculties from parents to children. Thus, genes from parents somewhat decide the growth and development of children.
Recreations:
Happiness, pleasure, love, appreciation, laughter etc. leads to mental development which directly or indirectly causes physical development. Boredom is burdensome and causes ill-effects to mental and physical development.
Accidents:
Accidents may check mental development in child. Also, it has obvious physical development issues.
Diseases:
Disease of any sort affects the physical development of a person due to which it directly affects the mental faculties of that person.

Question 2.
State four features of development and explain how growth is different in terms of these features of development?
Answer:
Features of development are:

  1. Development is qualitative
  2. It is a gradual process of constant changes.
  3. It leads to the evolution of mental, emotional and social effectiveness.
  4. It can only be scrutinised or inspected through specified techniques.

The difference of growth from development in terms of above given features respectively are as follows:

  1. Growth is quantitative Le., expansion of size and shape, height, weight, etc.
  2. Growth of a child takes place till adulthood, after that there is hardly any change is witnessed in the weight, height, size and shape of the child.
  3. Growth leads to the change in any organ of the body or its behaviour.
  4. Changes due to growth can be measured and are visible to every naked eye.

Hope given RBSE Solutions for Class 9 Physical Education Chapter 2 are helpful to complete your homework.

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