Check POINT 4
1. Name the protein present in the blood. What is
its role in the body?
2. Which of the following components gives more
energy?
(a) carbohydrates (b) fats (c) proteins
3. Which vitamin maintains normal vision?
4. Name the vitamin our body can produce in
sunlight
5. Name the disease caused by the deficiency of
(a) iodine (b) calcium (c) vitamin D
6. Name the major component of roughage. What
are its benefits to our body?
7. Which of the following is more essential to our
body?
(a) water (b) food (c) vegetables
Answers
1 Serum albumin accounts for 55% of blood proteins, is a major contributor to maintaining the oncotic pressure of plasma and assists, as a carrier, in the transport of lipids and steroid hormones. Globulins make up 38% of blood proteins and transport ions, hormones, and lipids assisting in immune function.
2 fats give much more energy as compared to the same amount of carbohydrates. Foods containing fats and carbohydrates are also called 'Energy Giving Foods'. Proteins are needed for the growth and repair of our body. Carbohydrates, Fats and Protein are composed of carbon, hydrogen, oxygen.
3 Vitamin A is required for the maintenance of normal vision. A deficiency in vitamin A can lead to visual disturbances. In the eyes, a form of vitamin A called retinal is combined with a protein called opsin to give rhodopsin, an essential light absorbing molecule needed for color vision and seeing in dim light.
4 Vitamin D3 is synthesized in the skin by the reaction of 7-dehydrocholesterol with UVB radiation, present in sunlight with an UV index of three or more.
5 Vitamin D deficiency can lead to a loss of bone density, which can contribute to osteoporosis and fractures (broken bones). Severe vitamin D deficiency can also lead to other diseases. In children, it can cause rickets. Rickets is a rare disease that causes the bones to become soft and bend.
Iodine deficiency is a lack of the trace element iodine, an essential nutrient in the diet. It may result in metabolic problems such as goiter, sometimes as an endemic goiter as well as cretinism due to untreated congenital hypothyroidism, which results in developmental delays and other health problems.
Hypocalcemia, commonly known as calcium deficiency disease, occurs when calcium levels in the blood are low. A long-term deficiency can lead to dental changes, cataracts, alterations in the brain, and osteoporosis, which causes the bones to become brittle.
6 Roughage does not provide any nutrient to our body, but is an essential component of our food and adds to its bulk. This helps our body get rid of undigested food. Main sources: Whole grains and pulses, potatoes, fresh fruits and vegetables. Water helps our body to absorb nutrients from food.
7 vegetables and water
plz mark it as brainiest