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Food - Biology, General Science Video Lecture | IBPS PO Prelims & Mains Preparation - Bank Exams
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FAQs on Food - Biology, General Science Video Lecture - IBPS PO Prelims & Mains Preparation - Bank Exams
| 1. What are the main nutrients found in food? |  |
Ans. Food contains several important nutrients that are necessary for our body to function properly. The main nutrients found in food include carbohydrates, proteins, fats, vitamins, and minerals. Carbohydrates provide energy, proteins are essential for growth and repair of tissues, fats help in insulation and energy storage, vitamins play a crucial role in various bodily functions, and minerals are needed for proper functioning of enzymes and other physiological processes.
| 2. How does our body obtain energy from food? | |
Ans. Our body obtains energy from food through a process called cellular respiration. When we consume food, it is broken down into smaller molecules through digestion. These molecules, particularly carbohydrates and fats, are then converted into glucose. Glucose is transported to our cells, where it undergoes a series of chemical reactions in the presence of oxygen to release energy. This energy is stored in the form of ATP (adenosine triphosphate), which is used by our cells to carry out various functions and activities.
| 3. What is the role of enzymes in food digestion? | |
Ans. Enzymes play a crucial role in food digestion. They are biological catalysts that speed up the chemical reactions involved in breaking down food into smaller molecules. In the digestive system, various enzymes are secreted by organs such as the salivary glands, stomach, pancreas, and small intestine. These enzymes break down carbohydrates into simple sugars, proteins into amino acids, and fats into fatty acids and glycerol. This breakdown of food molecules by enzymes allows for their absorption and utilization by the body.
| 4. Why is it important to have a balanced diet? | |
Ans. A balanced diet is important because it provides our body with all the necessary nutrients in the right proportions. Each nutrient has a specific role to play in maintaining our overall health and well-being. Having a balanced diet ensures that we obtain adequate amounts of carbohydrates, proteins, fats, vitamins, and minerals. It helps in providing energy, supporting growth and repair, boosting the immune system, maintaining healthy body weight, and reducing the risk of chronic diseases such as heart disease and diabetes.
| 5. Can food affect our mood and mental health? | |
Ans. Yes, food can affect our mood and mental health. Certain nutrients, such as carbohydrates, proteins, and fats, play a role in the production of neurotransmitters (chemical messengers) in our brain. Neurotransmitters are involved in regulating our mood, emotions, and overall mental well-being. Additionally, deficiencies in certain vitamins and minerals, such as vitamin B12 and iron, can lead to symptoms of depression and fatigue. It is important to consume a varied and nutritious diet to support optimal brain function and mental health.
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