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Do All Organisms Need Food Video Lecture | Crash Course for Class 6

FAQs on Do All Organisms Need Food Video Lecture - Crash Course for Class 6

1. Why do all organisms need food?

Ans. All organisms need food because it provides them with the energy and nutrients required for growth, maintenance, and reproduction. Food contains essential substances like carbohydrates, proteins, fats, vitamins, and minerals that help in metabolic processes and overall health.

2. What are the different types of organisms based on their food sources?

Ans. Organisms can be classified into three main types based on their food sources: 1. Autotrophs (like plants) that make their own food through photosynthesis. 2. Heterotrophs (like animals) that consume other organisms for food. 3. Decomposers (like fungi and bacteria) that break down dead organic matter to obtain nutrients.

3. How do plants obtain their food?

Ans. Plants obtain their food through a process called photosynthesis. They use sunlight, carbon dioxide from the air, and water from the soil to produce glucose (a type of sugar) and oxygen. The chlorophyll in their leaves captures sunlight, enabling this process to take place.

4. Can some organisms survive without food for a long time?

Ans. Yes, some organisms can survive without food for extended periods. For example, certain bacteria and fungi can enter a dormant state when food is scarce. Some animals, like bears, can hibernate for months without eating, relying on stored fat for energy during that time.

5. What happens to organisms when they do not get enough food?

Ans. When organisms do not get enough food, they may experience malnutrition, leading to weakness, stunted growth, and impaired immune function. In severe cases, a lack of food can lead to starvation, causing serious health issues or even death if not addressed.

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Oct 24, 2025 Last updated

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