Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 9th
Advertisement Remove all ads

Tamil Nadu Board Samacheer Kalvi solutions for Class 9th Science Answers Guide chapter 21 - Nutrition and Health [Latest edition]

Chapters

Class 9th Science Answers Guide - Shaalaa.com
Advertisement Remove all ads
Advertisement Remove all ads
Advertisement Remove all ads

Chapter 21: Nutrition and Health

Exercise
Advertisement Remove all ads
Exercise [Pages 254 - 255]

Tamil Nadu Board Samacheer Kalvi solutions for Class 9th Science Answers Guide Chapter 21 Nutrition and HealthExercise [Pages 254 - 255]

Choose the correct answer.

Exercise | Q I. 1. | Page 254

The nutrient required in trace amounts to accomplish various body functions is ______.

  • carbohydrate

  • protein

  • vitamin

  • fat

Exercise | Q I. 2. | Page 254

The physician who discovered that scurvy can be cured by ingestion of citrus fruits is ______.

  • James Lind

  • Louis Pasteur

  • Charles Darwin

  • Isaac Newton

Exercise | Q I. 3. | Page 255

The sprouting of onion and potatoes can be delayed by the process of ______.

  • freezing

  • irradiation

  • salting

  • canning

Exercise | Q I. 4. | Page 255

Food and Adulteration Act was enforced by Government of India in the year ______.

  • 1964

  • 1954

  • 1950

  • 1963

Exercise | Q I. 5. | Page 254

An internal factor responsible for spoilage of food is ______.

  • wax coating

  • contaminated utensils

  • moisture content in food

  • synthetic preservatives

Exercise [Page 255]

Tamil Nadu Board Samacheer Kalvi solutions for Class 9th Science Answers Guide Chapter 21 Nutrition and HealthExercise [Page 255]

Fill in the blanks.

Exercise | Q II. 1. | Page 255

Deficiency diseases can be prevented by taking ______ diet.

Exercise | Q II. 2. | Page 255

The process of affecting the natural composition and the quality of food substance is known as ______.

Exercise | Q II. 3. | Page 255

Vitamin D is called as ______ vitamin as it can be synthesised by the body from the rays of sunlight.

Exercise | Q II. 4. | Page 255

Dehydration is based on the principle of removal of ______.

Exercise | Q II. 5. | Page 255

Food should not be purchased beyond the date of ______.

Exercise | Q II. 6. | Page 255

AGMARK is used to certify ______ and ______ products in India.

Exercise [Page 255]

Tamil Nadu Board Samacheer Kalvi solutions for Class 9th Science Answers Guide Chapter 21 Nutrition and HealthExercise [Page 255]

Exercise | Q III. 1. | Page 255

State whether true or false. If false, correct the statement.

Iron is required for the proper functioning of thyroid gland.

  • True

  • False

Exercise | Q III. 2. | Page 255

State whether true or false. If false, correct the statement.

Vitamins are required in large quantities for normal functioning of the body

  • True

  • False

Exercise | Q III. 3. | Page 255

State whether true or false. If false, correct the statement.

Vitamin C is a water soluble vitamin

  • True

  • False

Exercise | Q III. 4. | Page 255

State whether true or false. If false, correct the statement.

Lack of adequate fats in diet may result in low body weight

  • True

  • False

Exercise | Q III. 5. | Page 255

State whether true or false. If false, correct the statement.

ISI mark is mandatory to certify agricultural products.

  • True

  • False

Exercise [Page 255]

Tamil Nadu Board Samacheer Kalvi solutions for Class 9th Science Answers Guide Chapter 21 Nutrition and HealthExercise [Page 255]

Exercise | Q IV. | Page 255

Match the following.

  Column A   Column B
1. Calcium a. Muscular fatigue
2. Sodium b. Anaemia
3. Potassium c. Osteoporosis
4. Iron d. Goitre
5. Iodine e. Muscular cramps
Exercise [Page 255]

Tamil Nadu Board Samacheer Kalvi solutions for Class 9th Science Answers Guide Chapter 21 Nutrition and HealthExercise [Page 255]

Exercise | Q V. | Page 255

Fill in the blanks with suitable answers.

Vitamins Dietary Source Deficiency Disease
Calciferol ______ Rickets
______ Papaya Night blindness
Ascorbic acid ______ ______
______ Whole grains Beriberi
Exercise [Page 255]

Tamil Nadu Board Samacheer Kalvi solutions for Class 9th Science Answers Guide Chapter 21 Nutrition and HealthExercise [Page 255]

Exercise | Q VI. i. | Page 255

Give abbreviation for the following.

ISI- 

Exercise | Q VI. ii. | Page 255

Give abbreviation for the following.

FPO- 

Exercise | Q VI. iii. | Page 255

Give abbreviation for the following.

AGMARK- 

Exercise | Q VI. iv. | Page 255

Give abbreviation for the following.

FCI- 

Exercise | Q VI. v. | Page 255

Give abbreviation for the following.

FSSAI- 

Exercise [Page 256]

Tamil Nadu Board Samacheer Kalvi solutions for Class 9th Science Answers Guide Chapter 21 Nutrition and HealthExercise [Page 256]

Assertion and reason type questions.

Exercise | Q VII. 1. | Page 256

Assertion: Haemoglobin contains iron.

Reason: Iron deficiency leads to anaemia

  • If both Assertion and Reason are true and the Reason is the correct explanation of Assertion

  • If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

  • If Assertion is true but Reason is false

  • If both Assertion and Reason is false

Exercise | Q VII. 2. | Page 256

Assertion: AGMARK is a quality control agency

Reason: ISI is a symbol of quality

  • If both Assertion and Reason are true and the Reason is the correct explanation of Assertion

  • If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

  • If Assertion is true but Reason is false

  • If both Assertion and Reason is false

Exercise [Page 256]

Tamil Nadu Board Samacheer Kalvi solutions for Class 9th Science Answers Guide Chapter 21 Nutrition and HealthExercise [Page 256]

Exercise | Q VIII. a. | Page 256

Give reason for the following statement.

Salt is added as a preservative in pickles

Exercise | Q VIII. b. | Page 256

Give reason for the following statement.

We should not eat food items beyond the expiry date

Exercise | Q VIII. c. | Page 256

Give reason for the following statement.

Deficiency of calcium in diet leads to poor skeletal growth

Exercise [Page 256]

Tamil Nadu Board Samacheer Kalvi solutions for Class 9th Science Answers Guide Chapter 21 Nutrition and HealthExercise [Page 256]

Answer briefly.

Exercise | Q IX. 1. a. | Page 256

Differentiate

Kwashiorkar from Marasmus

Exercise | Q IX. 1. b. | Page 256

Differentiate

Macronutrients from Micronutrients

Exercise | Q IX. 2. | Page 256

Why salt is used as preservative in food?

Exercise | Q IX. 3. | Page 256

What is an adulterant?

Exercise | Q IX. 4. | Page 256

Name any two naturally occuring toxic substances in food.

Exercise | Q IX. 5. | Page 256

What factors are required for the absorption of Vitamin D from the food by the body?

Exercise | Q IX. 6. | Page 256

Write any one function of the following minerals

  1. Calcium
  2. Sodium
  3. Iron 
  4. Iodine
Exercise | Q IX. 7. | Page 256

Explain any two methods of food preservation.

Exercise | Q IX. 8. | Page 256

What are the effects of consuming adulterated food?

Exercise [Page 256]

Tamil Nadu Board Samacheer Kalvi solutions for Class 9th Science Answers Guide Chapter 21 Nutrition and HealthExercise [Page 256]

Answer in detail.

Exercise | Q X. 1. | Page 256

How are vitamins useful to us? Tabulate the sources, deficiency diseases and symptoms of fat soluble vitamins

Exercise | Q X. 2. | Page 256

Explain the role of food control agencies in India.

Exercise [Page 256]

Tamil Nadu Board Samacheer Kalvi solutions for Class 9th Science Answers Guide Chapter 21 Nutrition and HealthExercise [Page 256]

Exercise | Q XI. 1. | Page 256

Higher Order Thinking Skill.

Look at the picture and answer the question that follows

  1. Name the process involved in the given picture. 
  2. Which diary food is preserved by this process? 
  3. What is the temperature required for the above process?
Exercise | Q XI. 2. | Page 256

Higher Order Thinking Skill.

The doctor advices an adolescent girl who is suffering from anaemia to include more of leafy vegetables and dates in her diet. Why so

Exercise | Q XI. 3. | Page 256

Higher Order Thinking Skill.

Sanjana wants to buy a jam bottle in a grocery shop. What are the things she should observe on the label before purchasing it?

Chapter 21: Nutrition and Health

Exercise
Class 9th Science Answers Guide - Shaalaa.com

Tamil Nadu Board Samacheer Kalvi solutions for Class 9th Science Answers Guide chapter 21 - Nutrition and Health

Tamil Nadu Board Samacheer Kalvi solutions for Class 9th Science Answers Guide chapter 21 (Nutrition and Health) 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 Tamil Nadu Board of Secondary Education Class 9th Science Answers Guide 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. Tamil Nadu Board Samacheer Kalvi textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Class 9th Science Answers Guide chapter 21 Nutrition and Health are Food and Its Types, Deficiency Diseases, Nutrients and Nutrition, Component of Food, Carbohydrates, Proteins, Fats, Vitamins, Minerals, Diseases Due Deficiency in Carbohydrates, Diseases Due Deficiency in Proteins, Diseases Due Deficiency in Fats, Diseases Due Deficiency in Vitamin, Preservation of Food, Diseases Due Deficiency in Minerals, Spoilage of Food, Methods of Food Preservation, Food Adulteration, Food Quality Control.

Using Tamil Nadu Board Samacheer Kalvi Class 9th solutions Nutrition and Health 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 Tamil Nadu Board Samacheer Kalvi Solutions are important questions that can be asked in the final exam. Maximum students of Tamil Nadu Board of Secondary Education Class 9th prefer Tamil Nadu Board Samacheer Kalvi Textbook Solutions to score more in exam.

Get the free view of chapter 21 Nutrition and Health Class 9th extra questions for Class 9th Science Answers Guide and can use Shaalaa.com to keep it handy for your exam preparation

Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×