Tag: food for health

Questions Related to food for health

Cholesterol is related to

biology food for health fats fats and their test different nutrients in food

  1. Fats

  2. Carbohydrate

  3. Proteins

  4. Vitamin C

Show answer
Correct Option: A
Explanation:
Dietary fat and cholesterol are closely related types of dietary fat (saturated and trans fat) can lead to an increase in blood cholesterol levels. Research shows that the amount and type of dietary fat can affect blood cholesterol levels. Dietary fat, especially saturated and trans fats, may raise blood cholesterol levels. High total blood cholesterol levels and LDL cholesterol levels increase risk of heart disease while lower levels reduce risk. Higher levels of HDL cholesterol help lower the risk for heart disease
So, the correct answer is 'Fats'

Which of the following plays a key role in absorption and distribution of fats?

biology food for health fats fats and their test different nutrients in food

  1. Lacteals

  2. Villi

  3. Secretin

  4. Segmentation movements

Show answer
Correct Option: A
Explanation:

Meats, dairy products, seeds, nuts and oils contain dietary fat which needs to be broken down to be absorbed by the system. While the bile contains bile salts that emulsifies and pancreatic lipase acts to break lipids, to be absorbed in the blood stream this goes through further breakdown process in the small intestine where lacteals found in the villi of the intestinal wall help the lipids to pass through the  lymphatic system.

Therefore, the correct answer is option A.

Which of the following plays a key role in absorption and distribution of fats?

biology food for health fats fats and their test different nutrients in food

  1. Lacteals

  2. Villi

  3. Secretin

  4. Liver

Show answer
Correct Option: A
Explanation:

Lipids are fat-like molecule that cannot dissolve in water. When these reach the small intestine, the enzymes present there responsible for fat digestion acts on it. The pancreatic lipase breaks lipids down, resulting in free fatty acids and monoglycerides. Further, these are resynthesized into triglycerides which enter the lymphatic capillaries and lacteals present as the finger-like projections of the villi these acts on the lipids so as to be absorbed before they enter the bloodstream. 

Which of the following is rich in all the three foods, i.e., carbohydrates, proteins and fats?

biology food for health fats fats and their test different nutrients in food

  1. Rice grains

  2. Soybean seeds

  3. Mango fruit

  4. Cabbage leaves

Show answer
Correct Option: B
Explanation:

Soybean seeds have 40% protein content and 20% of oil which accounts for 60% weight of dry soybeans. The remainder 35% is carbohydrate. With the highest protein content among plant products, 100g serving of soybean consists of 17g protein, 1g of saturated fat, 10g of carbohydrate and 6g of fibre. 

A gram of butter provides more energy than a gram of sugar because

biology food for health fats fats and their test different nutrients in food

  1. Butter is digested slowly

  2. Butter has more carbon-hydrogen bonds

  3. Butter is more completely absorbed

  4. Butter contains more ATP

Show answer
Correct Option: B
Explanation:

A gram of butter provides more energy than a gram of sugar because butter has more carbon-hydrogen bonds.

The carbohydrates are the compounds which provide energy to living cells. They are compounds of carbon, hydrogen and oxygen with a ratio of two hydrogens for every oxygen atom. The carbohydrates we use as foods have their origin in the photosynthesis of plants. They take the form of sugars, starches, and cellulose.

A gram of butter provides more energy than a gram of sugar because

biology food for health fats fats and their test different nutrients in food

  1. Butter is an animal product.

  2. Butter has more carbon-hydrogen bonds.

  3. Butter is more completely absorbed.

  4. Butter contains more ATP.

Show answer
Correct Option: B
Explanation:

Fat contains 9 kcal per gram, whereas carbohydrates and protein only contain 4 kcal per gram. 

Triglycerides or fats are composed of one molecule of glycerol and joined via ester bonds with three molecules of fatty acids. Fatty acids are long chains of carbon and hydrogen usually between 14-24 carbons long. Due to the abundance of C and H, fatty acids are very hydrophobic and are not very soluble in water. 
Fatty acids come in two major types, saturated and unsaturated. Saturated means that they have no double bonds. Unsaturated means that it contains double bonds. Generally, saturated fats (butter) have a high melting point so that they are a solid at room temperature. Unsaturated fats have a lower melting point and are a liquid at room temperature. Margarine is made by hydrogenating (adding H) to unsaturated vegetable oils increasing the amount of saturation and thus, the melting point (so it will be a solid). 

How many calories does fat provide:

biology biological molecules fats fats and their test food for health

  1. 14 Kcal/g or 17 KJ/g

  2. 9 Kcal/g or 38 KJ/g

  3. 6 Kcal/g or 25 KJ/g

  4. 4 Kcal/g or 17 KJ/g.

Show answer
Correct Option: B
Explanation:

Answer is option B i.e. "9 Kcal/g or 38 KJ/g"
A calorie is a unit of energy that measures how much energy food provides to the body. The body needs calories to function properly. Fats are nutrients in food that the body uses to build cell membranes, nerve tissue (like the brain), and hormones. A gram of fat has about 9 calories, while a gram of carbohydrate or protein has about 4 calories.