Question

3. Give short answers.
1. Why do we need food ?
2. Which disease is caused due to lack of vitamin A ?
3. Why does our body need protein ?
4. What causes malaria ?
5. Why is water essential for our body ?​

Answer 1

Answer:

1.A food is something that provides nutrients. Nutrients are substances that provide: energy for activity, growth, and all functions of the body such as breathing, digesting food, and keeping warm; materials for the growth and repair of the body, and for keeping the immune system healthy.

Answer 2

Answer:

1. We need food because food gives us energy. Food we eat gives our body essential nutrients to help us grow and heal when we are injured or we are ill. Thus food keeps us healthey and provide us essential nutrients to fight diseases.
2. .Too little vitamin A can lead to inflamed skin, night blindness, infertility, delayed growth and respiratory infections. People with wounds and acne may have lower blood levels of vitamin A and benefit from treatment with higher doses of the vitamin.
3. The basic structure of protein is a chain of amino acids. You need protein in your diet to help your body repair cells and make new ones. Protein is also important for growth and development in children, teens, and pregnant women
4. Malaria is caused by Plasmodium parasites. The parasites are spread to people through the bites of infected female Anopheles mosquitoes, called "malaria vectors." There are 5 parasite species that cause malaria in humans, and 2 of these species – P. falciparum and P.
5. few important ways water works in your body:
6. Regulates body temperature. Moistens tissues in the eyes, nose and mouth. Protects body organs and tissues. Carries nutrients and oxygen to cells.

Explanation:

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