Test: Components of Food - UPSC MCQ

In the iodine test for starch, a blue-black color indicates the presence of starch in the tested food item. Iodine reacts with the starch molecules, forming a characteristic blue-black complex. This test is commonly used to detect the presence of starch in various food samples.

Dietary fibers(also known as roughage)  are the nutrient found primarily in fruits and vegetables that aid in the digestion and elimination of undigested food. Fiber helps maintain a healthy digestive system by increasing the bulk of stool and facilitating its movement through the intestines, which helps prevent constipation and promotes regular bowel movements.

Therefore, Correct Answer- Option C

Vitamin D is renowned for its role in helping the body absorb calcium which is essential minerals for the formation and maintenance of healthy bones and teeth. It plays a crucial part in bone health and overall skeletal development.

Beriberi is a deficiency disease caused by the lack of vitamin B1 in the diet. It is characterized by symptoms such as weight loss and weak muscles. Foods rich in vitamin B1, such as beans, meat, eggs, and corn, are essential to prevent beriberi.

Scurvy is a deficiency disease caused by the lack of vitamin C in the diet. Symptoms of scurvy include bleeding gums and delayed wound healing. Consuming vitamin C-rich foods like oranges, tomatoes, lemon, guavas, and amla can help prevent scurvy.

Goitre is a deficiency disease caused by the lack of iodine in the diet. In adults, it results in swollen glands at the throat, while in children, it can lead to stunted mental and physical development. Using iodized salt in the diet can help prevent iodine deficiency and Goitre.

Roughage, also known as dietary fibre, is essential for a healthy digestive system. A major source of roughage includes:

• Whole grains: These include oats, brown rice, and whole wheat products. They are rich in fibre, which aids digestion.
• Fresh fruits: Fruits like apples, berries, and pears are high in fibre and provide essential vitamins and minerals.

Therefore,Correct Answer- Option B

• Carbohydrates provide energy. (True)
• Carbohydrates are like the fuel for our bodies. They give us the energy we need to play, run, and do all the fun things we love! So, when we eat foods like bread, rice, or pasta, we are getting energy from carbohydrates to keep us active and strong.

When you don't have enough Vitamin C, your gums can bleed easily. Eating fruits like oranges can help because they have a lot of Vitamin C in them!

Yes, that's right! When our bodies don't get enough of the important stuff like vitamins and minerals, we can get sick with what we call 'deficiency diseases'. This is why it's super important to eat a balanced diet with lots of different foods to stay healthy and strong!