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Test: Food and its Components - Class 6 MCQ


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10 Questions MCQ Test Science Olympiad Class 6 - Test: Food and its Components

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Test: Food and its Components - Question 1

Which of them give us energy?

Detailed Solution for Test: Food and its Components - Question 1
Which of them give us energy?

  • Carbohydrates: Carbohydrates are the primary source of energy for our bodies. They are broken down into glucose, which is used by our cells for energy production.

  • Protein: While protein is not a direct source of energy, it can be converted into glucose through a process called gluconeogenesis when carbohydrate stores are low. Protein also plays a role in providing energy for the body.

  • Calcium: Calcium is a mineral essential for bone health and muscle function, but it does not provide energy directly.

  • Vitamin: Vitamins are essential for various bodily functions but do not provide energy on their own.


Therefore, carbohydrates and to some extent protein are the macronutrients that give us energy.

Test: Food and its Components - Question 2

Rice is rich of

Detailed Solution for Test: Food and its Components - Question 2
Why Rice is Rich in Carbohydrates

  • Starch Content: Rice is primarily composed of carbohydrates in the form of starch. Starch is a complex carbohydrate that provides a slow and steady release of energy.


  • Energy Source: Carbohydrates are the body's main source of energy, making rice an important staple food in many cultures around the world.


  • Dietary Fiber: While rice is mainly known for its starch content, it also contains some dietary fiber. Fiber is a type of carbohydrate that is important for digestive health.


  • Low in Fat: Rice is naturally low in fat, making it a healthy carbohydrate option for those looking to maintain a balanced diet.


  • Vitamins and Minerals: While rice is not a significant source of vitamins and minerals, it does contain small amounts of certain nutrients like niacin and magnesium.


Overall, rice is a rich source of carbohydrates, making it a valuable energy source for many people around the world.

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Test: Food and its Components - Question 3

Sugar is a

Detailed Solution for Test: Food and its Components - Question 3
Sugar is a Carbohydrate

  • Carbohydrate: Sugar is a type of carbohydrate, which is one of the three main macronutrients along with fats and proteins. Carbohydrates are essential nutrients that provide energy for the body.

  • Simple Sugar: Sugar is a simple carbohydrate, also known as a simple sugar. It is quickly broken down by the body to provide energy.

  • Types of Sugar: There are different types of sugar, including glucose, fructose, and sucrose. These sugars are found naturally in fruits, vegetables, and dairy products, as well as added to processed foods and beverages.

  • Role in the Body: Carbohydrates, including sugar, are the body's preferred source of energy. They are important for fueling the brain, muscles, and other tissues.

  • Consumption: While sugar is a source of energy, consuming too much added sugar can lead to health issues such as weight gain, tooth decay, and an increased risk of chronic diseases like diabetes and heart disease.

Test: Food and its Components - Question 4

Obesity occurs when we eat rich of

Detailed Solution for Test: Food and its Components - Question 4
Reasons for Obesity:

  • High Fat Intake: Obesity occurs when we consume a diet high in fats, especially saturated and trans fats. These fats are calorie-dense and can lead to weight gain if consumed in excess.


Effects of Fat on Obesity:

  • Calorie Density: Fats have a high calorie content per gram, which can contribute to weight gain if not consumed in moderation.

  • Lack of Nutrient Density: Foods high in fat often lack essential nutrients like vitamins and minerals, leading to overconsumption in order to meet nutritional needs.

  • Impact on Metabolism: Excessive fat intake can negatively impact metabolism, making it harder for the body to burn calories efficiently.


Prevention of Obesity:

  • Healthy Eating Habits: Focus on a balanced diet that includes a variety of nutrients from fruits, vegetables, lean proteins, and whole grains.

  • Regular Exercise: Physical activity plays a crucial role in maintaining a healthy weight and preventing obesity.

  • Portion Control: Be mindful of portion sizes and avoid overeating, especially foods high in fats and calories.

Test: Food and its Components - Question 5

Nutrient which helps in to repairing the damage body cells?

Detailed Solution for Test: Food and its Components - Question 5
Protein helps in repairing damaged body cells:

  • Building blocks: Proteins are essential for the growth and repair of body tissues, including muscles, organs, and cells. They provide the necessary building blocks for repairing damaged cells.

  • Enzymes: Proteins also play a crucial role in the production of enzymes, which are required for various chemical reactions in the body, including the repair of damaged cells.

  • Immune system: Proteins are essential for the proper functioning of the immune system, which helps in defending the body against infections and diseases. A strong immune system is necessary for repairing damaged cells effectively.

  • Collagen: Collagen, a type of protein, is necessary for maintaining the structural integrity of tissues such as skin, bones, and cartilage. It is crucial for repairing damaged cells in these tissues.

  • Repair process: When cells are damaged due to injury, illness, or other factors, the body relies on proteins to initiate the repair process and restore the normal functioning of the affected cells.

Test: Food and its Components - Question 6

Which of this contain less oxygen than carbohydrate?

Detailed Solution for Test: Food and its Components - Question 6
Less Oxygen Content in Fat compared to Carbohydrate:

  • Fat: Fats are composed of carbon, hydrogen, and oxygen, but they contain less oxygen compared to carbohydrates. Fats have a higher proportion of carbon and hydrogen atoms relative to oxygen atoms.

  • Carbohydrate: Carbohydrates, such as starch, have a higher proportion of oxygen atoms compared to fats. This is because carbohydrates are made up of carbon, hydrogen, and oxygen in a ratio where oxygen atoms are more abundant.

  • Protein: Proteins also contain oxygen atoms, but they have a different chemical structure compared to carbohydrates and fats. Proteins are composed of amino acids, which contain nitrogen in addition to carbon, hydrogen, and oxygen.

  • Vitamins: Vitamins can vary in their chemical composition, but they generally contain oxygen along with other elements essential for various biological functions in the body.

Test: Food and its Components - Question 7

Thiamine is what type of vitamin?

Detailed Solution for Test: Food and its Components - Question 7
Type of vitamin

  • Thiamine is classified as Vitamin B.


Explanation

  • Vitamin B is a group of water-soluble vitamins that play essential roles in various bodily functions.

  • Thiamine, also known as Vitamin B1, is crucial for energy metabolism and nerve function.

  • Deficiency in Thiamine can lead to conditions like beriberi or Wernicke-Korsakoff syndrome.

  • Food sources of Thiamine include whole grains, legumes, nuts, and lean meats.

Test: Food and its Components - Question 8

Defficiency of vitamin B1 causes

Detailed Solution for Test: Food and its Components - Question 8
Deficiency of Vitamin B1 causes Beriberi

  • Symptoms of Beriberi:


    • Weakness and fatigue

    • Nerve damage

    • Difficulty walking

    • Confusion



  • Importance of Vitamin B1:


    • Vitamin B1, also known as thiamine, is essential for energy metabolism in the body.

    • It plays a key role in the functioning of the nervous system.



  • Sources of Vitamin B1:


    • Whole grains

    • Pork

    • Nuts and seeds

    • Legumes



  • Prevention of Beriberi:


    • Consuming a balanced diet rich in Vitamin B1 sources

    • Supplementation if necessary, under medical supervision


Test: Food and its Components - Question 9

Butter mainly contains

(i) Fat
(ii) Vitamin
(iii) Protein
(iv) Calcium

Detailed Solution for Test: Food and its Components - Question 9
Butter mainly contains:

  • Fat: Butter is primarily composed of fat, specifically saturated fat.

  • Vitamin: Butter contains fat-soluble vitamins such as vitamin A, D, E, and K.

  • Protein: Butter does contain some protein, but it is not the main component.

  • Calcium: Butter does not contain significant amounts of calcium.


Answer: (D) (i) and (iii)

  • Fat and Protein: Butter mainly contains fat and some protein, making option (D) the correct answer.


By understanding the composition of butter, we can see that it is primarily a source of fat with some protein content. This makes it suitable for cooking, baking, and adding flavor to various dishes.
Test: Food and its Components - Question 10

Fish mainly give us

Detailed Solution for Test: Food and its Components - Question 10

Fish is among the healthiest foods on the planet. It's loaded with important nutrients, such as protein and vitamin D

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