Relationship of Food, Health and Diseases MCQs Quiz | Class 9
This is an MCQ quiz for Class IX Home Science (Code 064), Unit IV: Food, Nutrition and Health. It covers the topic ‘Relationship of Food, Health and Diseases’, focusing on the diet-disease link and lifestyle effects. Answer all questions, submit your quiz, and download the PDF answer sheet at the end.
Understanding Food, Health, and Diseases
The relationship between food, health, and disease is direct and profound. The nutrients we get from food are the building blocks of our body and provide the energy we need for daily activities. A well-balanced diet is essential for good health, while poor nutrition can lead to various health problems and diseases. This connection is often referred to as the diet-disease link.
Key Concepts: The Diet-Disease Link
The diet-disease link explores how our eating habits can either protect us from illnesses or increase our risk of developing them. This includes two main categories of diseases:
- Deficiency Diseases: These occur when the body does not get enough of a specific nutrient. For example, a lack of Vitamin C causes scurvy, and an iron deficiency leads to anaemia.
- Lifestyle Diseases: These are often caused by unhealthy habits, including poor diet and lack of physical activity. Examples include obesity, type 2 diabetes, and heart disease. Consuming too much-processed food, sugar, and unhealthy fats contributes significantly to these conditions.
The Role of Lifestyle
Beyond just diet, our overall lifestyle plays a crucial role in our health. Factors that have a significant impact include:
- Physical Activity: Regular exercise helps maintain a healthy weight, strengthens the heart, improves blood circulation, and reduces stress. A sedentary (inactive) lifestyle increases the risk of obesity and related diseases.
- Sleep: Adequate sleep is vital for the body to repair itself and function correctly. Lack of sleep can weaken the immune system and affect metabolism.
- Stress Management: Chronic stress can lead to unhealthy eating habits and increase the risk of conditions like high blood pressure.
Healthy vs. Unhealthy Choices
Making conscious choices about what we eat is the first step towards better health. Here’s a simple comparison:
| Healthy Choices (Nutrient-Dense) | Unhealthy Choices (Empty Calories) |
|---|---|
| Fresh fruits, vegetables, and salads | Fried foods like chips and samosas |
| Whole grains like oats, brown rice, whole wheat | Refined flour products like white bread and biscuits |
| Lean proteins like pulses, paneer, eggs | Sugary drinks and sodas |
| Water, milk, fresh juices | Processed snacks with high salt and preservatives |
Quick Revision Points
- A balanced diet provides all essential nutrients in the right proportions.
- Malnutrition includes both undernutrition (deficiency) and overnutrition (excess).
- Lifestyle diseases like diabetes and hypertension are on the rise due to poor dietary habits and lack of exercise.
- Vitamins and minerals are micronutrients that protect us from diseases.
- Carbohydrates and fats provide energy, while proteins are essential for growth and repair.
- Reading food labels can help you make healthier choices by understanding the nutritional content.
Extra Practice Questions
- What is the difference between a communicable and a non-communicable disease? Give one example of each.
- Explain the term ‘malnutrition’ and its two main types.
- Why is it important to include roughage (dietary fibre) in our diet?
- Name two diseases caused by a deficiency of minerals.
- Suggest three lifestyle changes to prevent obesity.
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