6th Class General Science MCQs | Unit 3 Balanced Diet (متوازن غذا) | PakMCQs

Energy is correct because food contains nutrients that are broken down by cells to power our daily physical and mental activities.

Balanced diet is correct because it contains the right proportions of proteins, carbohydrates, fats, vitamins, and minerals.

All of the above is correct because fruits, vegetables, grains, meat, and dairy products are all important food groups that provide diverse nutrients.

Good physical and mental health is correct because proper nutrition supports both brain function and body strength.

Grow the body properly is correct because essential nutrients like proteins are the building blocks needed for cell growth and tissue repair.

Immunity is correct because vitamins and minerals from a balanced diet strengthen the immune system to destroy harmful germs.

Energy is correct because carbohydrates and fats in our balanced diet serve as fuel to power our muscles and organs.

Nutrients is correct because these essential substances provide the chemical building blocks and energy required for bodily development.

Chemical substances is correct because nutrients consist of specific molecules like proteins, lipids, and carbohydrates that are used by our cells.

All of the above is correct because a balanced diet must contain carbohydrates, proteins, fats, minerals, vitamins, and water for complete health.

All of the above is correct because rice, bread, grains, and fruits are the primary dietary sources of carbohydrates.

Carbohydrates is correct because our cells break down these nutrients first to quickly generate energy for all daily functions.

Carbohydrates is correct because just like petrol runs a car, these sugars provide the necessary power to keep our organs running.

Starch and sugar is correct because carbohydrates are classified into simple sugars (like glucose) and complex starches (found in grains).

All of the above is correct because without enough carbs, the body lacks fuel, resulting in tiredness, pain, and stopped physical growth.

The brain is correct because brain cells (neurons) require a constant supply of glucose to function and cannot use other fuels easily.

All of the above is correct because poultry, meat, eggs, dairy, and plant-based beans/lentils are all excellent sources of dietary protein.

Making body cells and muscles is correct because proteins are the structural building blocks essential for cellular growth and muscle development.

All of the above is correct because proteins are the raw materials used by the body to synthesize tissues, chemical messengers (hormones), and biological catalysts (enzymes).

A fuel source is correct because the body can break down proteins to produce energy in emergency situations of starvation.

All of the above is correct because a lack of protein disrupts growth, causes fluid retention (swelling), skin damage, and weakens the immune system.

All of the above is correct because animal-derived foods like meat, fish, eggs, poultry, and dairy naturally contain a higher concentration of protein than plants.

Consist of all essential nutrients is correct because animal proteins are complete proteins, meaning they provide all the amino acids the body cannot make.

Consist of many essential nutrients is correct because while plant proteins are highly healthy, they may lack some specific essential amino acids compared to animal sources.

They become more effective is correct because combining different protein sources allows them to complement each other's nutrient profiles.

Meat, fish, poultry, and eggs is correct because these animal products provide high-quality complete proteins that are easily absorbed by the human body.

Slow growth and diseases is correct because a lack of protein prevents proper tissue building, leading to stunted growth and immune deficiency.

All of the above is correct because seeds, nuts, eggs, dairy, and vegetable oils are all natural sources of healthy fats.

Energy-rich foods is correct because fats contain more than twice the energy of carbohydrates per gram, serving as concentrated fuel.

Young children is correct because growing kids require healthy fats to develop their nervous system and absorb essential vitamins.

Keeps our body warm is correct because the subcutaneous fat layer acts as an insulator, preventing body heat from escaping in cold weather.

In our body is correct because our body has specialized tissues designed to store excess energy as fat to be used during times of food shortage.

Brain function is correct because the brain is composed largely of lipids, and healthy fats are required to build and maintain brain cells.

Infections, skin, and hair problems is correct because fats are essential for skin cell structure, nutrient absorption, and immune function.

Improves night vision and eyesight is correct because Vitamin A is essential for maintaining the health of the retina and seeing in low light.

Enhances immunity to infection is correct because Vitamin A strengthens the immune system to fight off harmful bacteria and viruses.

Loss of vision is correct because a lack of Vitamin A can lead to night blindness and dry eyes, damaging overall eyesight.

All of the above is correct because green/orange vegetables, fruits, egg yolk, and butter are all rich in natural Vitamin A.

Good for skin and helps heal quickly is correct because Vitamin C is essential for making collagen, which repairs damaged skin tissues.

Scurvy is correct because a lack of Vitamin C weakens connective tissues, leading to this historic nutritional deficiency disease.

Both (A) and (B) is correct because without Vitamin C, the body cannot maintain healthy gums or repair open cuts efficiently.

All of the above is correct because fresh citrus fruits, cabbage, and potatoes contain high amounts of natural Vitamin C.

Makes bones and teeth strong is correct because Vitamin D is essential for the mineralization of the skeleton, ensuring it remains hard and durable.

Calcium is correct because without Vitamin D, the digestive system cannot efficiently absorb calcium from the food we eat.

Rickets is correct because a lack of Vitamin D prevents bone tissue from hardening, leading to skeletal deformities.

Bones become weak and bent is correct because the soft bone tissue easily bows and deforms under the body's weight.

All of the above is correct because we can get Vitamin D from animal foods like eggs and fish oil, and our skin can make it using sunlight.

Makes bones and enamel of teeth is correct because calcium is the primary mineral that hardens these skeletal structures, giving them strength.

Both (A) and (B) is correct because calcium is required for biochemical pathways that clot blood after injury and signal muscles to contract.

Osteoporosis is correct because a lack of calcium causes the bones to lose density, becoming porous, fragile, and easy to break.

All of the above is correct because a lack of calcium slows down bone growth and makes both teeth and skeletal bones fragile and weak.

All of the above is correct because milk products, dark leafy greens like spinach, and eggs contain high amounts of natural calcium.

Iron is correct because it is the core metal atom required by our body to synthesize the oxygen-carrying protein haemoglobin.

To transport oxygen is correct because haemoglobin binds with oxygen molecules in the lungs and delivers them to all tissues of the body.

Anaemia is correct because a lack of iron reduces the number of healthy red blood cells, lowering the blood's capacity to carry oxygen.

All of the above is correct because a shortage of oxygen delivery due to low iron leads to chronic tiredness, weakness, and a pale skin tone.

All of the above is correct because animal meats, eggs, nuts, grains, and leafy green vegetables are all excellent sources of dietary iron.

Protein is correct because haemoglobin is a specialized metalloprotein designed to bind and transport gases in the bloodstream.

Red blood cells is correct because these cells are packed with haemoglobin molecules to carry maximum oxygen to body tissues.

To carry oxygen is correct because the iron in haemoglobin allows it to bind with oxygen in the lungs and release it where needed.

Haemoglobin is correct because the interaction between oxygen and the iron in haemoglobin reflects red light, giving blood its color.

Hb levels vary from person to person is correct because factors like age, gender, health, and diet determine an individual's normal haemoglobin count.

Fruits and vegetables is correct because plant-based foods contain indigestible cell walls that serve as natural dietary fiber.

Keeps our intestine healthy is correct because fiber adds bulk to the stool, helping it move smoothly through the digestive tract.

Constipation and bloating is correct because without fiber, the stool becomes hard, leading to difficult bowel movements and gas.

Diabetes and high cholesterol level is correct because fiber helps slow down sugar absorption and binds to cholesterol, lowering its level in blood.

Keeping your food diary is correct because tracking what you eat helps you maintain a balanced diet and portion control.

Any app is correct because modern mobile applications provide convenient tools to log food and calculate daily calorie intake.

Crush the small sample is correct because breaking down the food helps release the internal fat molecules so they can react with the chemical solvent.

Ethanol is correct because alcohol is an organic solvent that dissolves the fats present in the food sample.

Above the level of food is correct to ensure that all of the crushed food is fully submerged in the solvent for maximum extraction.

Water is correct because dissolved fats are insoluble in water, so adding water forces them out of the solution, creating a visible change.

A cloudy mixture appears is correct because the insoluble fats separate and suspend in the water-ethanol mix, forming a milky or cloudy emulsion.

Ethanol is correct because it is the organic alcohol solvent that can dissolve fat molecules from food tissues in a laboratory test.

Can live without food but not water is correct because dehydration harms the body much faster than starvation, affecting vital organs in a few days.

Water is correct because blood plasma, which makes up more than half of our blood volume, is composed of about 90% water.

Lining of the mouth is correct because saliva, which is mostly water, keeps the mouth's sensitive inner tissues moist for easy swallowing and speaking.

Cucumber and watermelon are correct because these fresh plant foods consist of over 90% water, serving as excellent hydrating snacks.

Nutrients is correct because dissolved vitamins, minerals, and sugars are carried through the bloodstream, which is mostly water, to reach cells.

Toxic material is correct because water is essential for the kidneys and sweat glands to flush out poisonous wastes from our system.

Six is correct because nutritionists identify six key categories of nutrients—carbohydrates, proteins, fats, vitamins, minerals, and water—needed for complete health.

All of the above is correct because carbohydrates, proteins, fats, water, minerals, and vitamins are all essential for different body functions.

Different types of elements is correct because nutrients are chemical compounds composed of elements like carbon, hydrogen, and oxygen.

Both (A) and (B) is correct because carbohydrates are organic compounds composed of carbon, hydrogen, and oxygen atoms.

45 to 55% is correct because this range provides the balanced amount of energy required by our body for daily activities.

All of the above is correct because grains, fruits, vegetables, and beans are all rich in healthy starches and sugars.

Both (A) and (B) is correct because proteins consist of carbon, hydrogen, oxygen, and nitrogen, which are the building blocks of amino acids.

20 to 35% is correct because this range provides the necessary amount of amino acids needed for muscle repair and body growth.

All of the above is correct because meats, dairy, eggs, nuts, and lentils are all excellent sources of dietary protein.

Carbon, Hydrogen, and Oxygen is correct because fats are organic molecules composed of these three elements to store energy in the body.

20 – 35 % is correct because nutrition guidelines recommend that fats should provide this specific range of daily calories for a balanced diet.

All of the above is correct because seeds, nuts, eggs, dairy products, and olive oil are all recognized as important food sources of dietary fats.

Carbon, Hydrogen, and Oxygen is correct because vitamins are organic compounds made of these three elements that are essential for regular body functions.

Traces is correct because vitamins do not act as major energy sources and are only needed by the body in very small trace amounts daily.

All of the above is correct because fruits, vegetables, nuts, dairy products, eggs, and fish are all natural food sources of vitamins.

Single elements or compounds like Sodium, Calcium, Potassium, and Iron is correct because minerals are inorganic substances composed of individual elements or simple compounds that support body functions.

Traces is correct because minerals do not provide direct energy or calories and are only required by the body in very small trace quantities.

All of the above is correct because fruits, vegetables, nuts, dairy, eggs, and fish are all natural food sources rich in essential minerals.

Two types (Micronutrients and Macronutrients) is correct because dietary nutrients are divided into these two categories depending on the quantity the body needs.

Micronutrients is correct because the body requires these nutrients in small amounts, yet they are vital for growth and preventing diseases.

Macronutrients is correct because carbohydrates, fats, and proteins are major nutrients that our body consumes in large amounts to get energy.

Energy is correct because a balanced diet gives the body fuel to perform daily tasks.

All colored fruits and vegetables is correct because a variety of colorful foods provides essential vitamins.

All of the above is correct because meat, fish, chicken, beans, and peas are rich in proteins.

Calcium and Vitamin D is correct because milk is highly rich in these nutrients to make bones strong.

Water is correct because drinking plenty of liquid keeps the body hydrated and healthy.

Both (A) and (B) is correct because fast food and high-fat items can harm our health.

Essential components is correct because leaving out key dietary parts can cause health problems.

Physical and mental fitness is correct because true health involves both a sound body and a sound mind.

Diet is correct because the food we eat directly impacts our body's daily health.

Balanced diet is correct because it provides all the required nutrients to keep the body working.

Fruits, vegetables, grains, nuts, and meat is correct because these healthy foods boost our body's defense system.

Health and weight problems is correct because poor nutrition harms body organs and increases body fat.

Both (A) and (B) is correct because physical activity helps relax the mind to improve both mood and sleep.

Diet and exercise is correct because combining good nutrition with physical movement is necessary for fitness.

All of the above is correct because physical activity boosts energy, strengthens muscles, and improves brain work.

Disease threat is correct because working out regularly keeps our body organs strong enough to prevent illnesses.

Healthy weight is correct because active exercise helps burn extra calories to avoid gaining fat.

Healthy food and exercise is correct because proper eating paired with active body movement ensures long-term fitness.

People with good health is correct because physical fitness provides the stamina needed to complete tasks easily.

Fats and weight gain is correct because poor sleep changes hormones that control appetite and hunger.

Health and weight problems is correct because lack of sleep disrupts body metabolism and causes fatigue.

9 – 11 hours is correct because school-aged children require this amount of sleep for healthy development.

One third is correct because roughly 33% of the global population does not receive proper nutrients.

2 billion is correct because excessive weight has become a major global health issue for this population.

821 million is correct because serious food shortage prevents this population from getting daily meals.

Seven is correct because the body needs seven specific nutrient types to grow well.

All of the above is correct because proteins, carbs, fats, fiber, vitamins, minerals, and water are all essential nutrients.

Varieties of foods is correct because different eating items contain different combinations of nutrients.

Balanced diet is correct because it has the right proportion of all seven essential nutrients.

Nutritional deficiency disease is correct because a lack of specific nutrients stops proper body working.

A balanced diet is correct because healthy eating supplies the body with energy to fight illness.

Both (A) and (B) is correct because nutrient needs change with a person's age, gender, and physical work.

Lazy and fat is correct because junk food lacks essential nutrients and contains high calories that cause weight gain.

Deficiency of vitamin A and calcium is correct because vitamin A is needed for vision and calcium makes bones strong.

Protein is correct because this nutrient acts as the primary building block for growth and repairing body tissues.

Carbohydrates is correct because they break down easily into glucose to give instant energy to the body.

Calorie is correct because it is the unit used to measure the energy value of different foods.

Protein is correct because animal-based foods provide high-quality amino acids needed for muscle building.

Scurvy is correct because a lack of Vitamin C leads to weak skin tissues and bleeding gums.

Diet with all seven nutrients in appropriate portions is correct because it provides the exact amounts of nutrients the body needs daily.

Protein is correct because it helps to build, maintain, and repair body tissues and muscles.

Scurvy is correct because this condition weakens blood vessels in the mouth due to low Vitamin C.