Science, asked by n234, 1 year ago

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Answered by Dadysangel
1
all questions kya. ????
Answered by Bajwa302
1
i)Rickets is a deficiency disorder that results in weakening and deformation of bones in children. It is caused by the prolonged deficiency of vitamin D, which is necessary for the absorption of calcium by the body. Lowered levels of calcium either due to poor absorption or a lack of sufficient amounts in the diet cause the bones to become soft and weak. The bones take a slightly bowed shape and give the children a deformed appearance in the legs. Globally rickets is common in children between the ages of three and 18 months. Rickets in babies less than a year old is mostly caused by vitamin D deficiency.
Several preventive measures can be taken to ensure your child doesn’t get rickets. If the child spends enough time playing outside in the sun and eats nutritional food rich in vitamin D and calcium, it keeps rickets at bay. Few minutes of sunlight a day, few times a week is helpful in producing vitamin D. The daily requirement for both infants and adults is about 10 micrograms (mcg) of vitamin D a day. Pregnant and breastfeeding women should consider taking the recommended 10mcg of vitamin D a day as a supplement to ensure the baby has enough. Also, children between 1 to 4 years old should be given a 10mcg vitamin D supplement on a daily basis


ii)An infected person can spread the cold virus from one day before symptoms appear to as long as two weeks after their appearance. The virus population is at its maximum on days three and four of the cold, and that's when a person is most contagious. Viruses and bacteria cause sore throats.

iii)The quality of food that we intake makes a difference in our appearance, activity, behavior and in the quality of life. Diseases can be caused because of the lack of nutrition in our food. Proper diet helps in the proper growth of children. In India, because our food is deficient in nutrients, we suffer from various deficiency diseases.
NUTRIENT GROUPS AND THEIR FUNCTIONS: There are six classes of nutrients namely, carbohydrates. proteins, fats, vitamins, minerals and water which should be included in our everyday meal. Food preparation should be done accordingly so that all the nutrient are available in it. Food providing same nutrients belongs to the same food group, k) that we can have,an alternate food item to suffice that nutrient.


ESSENTIAL NUTRIENTS
Our body need different compounds for the functioning of the different parts of our body. These compounds are called as nutrients. Different protein, vitamins and minerals should be included in our diet.
Plant Proteins v/s Animal Proteins: Proteins are obtained from grains, pulses, fishes, egg, meat, etc. Plant proteins are incomplete food as they lack in one or more amino acids whereas animal protein have all the amino acids and are called as the complete food. A complete diet of various cereals, millets and pulses is required by vegetarians. Egg also contains a large amount of protein.
Vitamin: Vitamin deficiency leads to different types of diseases. They can be obtained from plant and animal foods. Different types of vitamins available from different sources help our body in performing different functions. But the overdose of vitamins can cause illness.
Minerals: A large amount of calcium is required for healthy bones. Milk and green leafy vegetables are a very good source of calcium. Iron is another important mineral required for making hemoglobin in the blood. There are other 17 different types of minerals necessary for the healthy functioning of our body.

iv)When a few drops of iodine are added to the food containing starch, it turns blue-black in colour showing the presence of starch.


v)People who eat sea food do not suffer from goitre because the nutritions present in seafood are protien, Iodine, etc. and goitre is a disease caused by the lack of nutrition Iodine which is present in a large quantity in seafoods like fish, salt, etc...

vi)When it comes to being healthy, it can be a challenge to get our recommended daily servings of the vital nutrients. These nutrients include: vitamins, fiber, protein, calcium and minerals. ... This is especially true for protein. Consuming too much protein can be harmful to your health, and your vital organs.

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