Tag: food for health

Questions Related to food for health

Energy content of alcohol is $7.1kcal/gm$. it is more than carbohydrates and slightly less than fats. Intake of alcohol provides

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

  1. Enough energy to body for its working

  2. Releases heat energy

  3. Uses energy of body for dissipation of alcohol produced heat

  4. Both B and C

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Correct Option: D

Which of the following will be different in different in animals.

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

  1. Fats

  2. Carbohydrates

  3. Proteins

  4. Vitamins

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Correct Option: A

Fats are hydrolysed by lipase to yield

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

  1. Glycerol and fatty acids

  2. Fatty acids and amino acids

  3. Glycerine and water

  4. Glycerol and amino acids

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Correct Option: A

An example for essential fatty acids

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

  1. Glutamic acid

  2. Aspartic acid

  3. Linoleic acid

  4. Tartaric acid

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Correct Option: C
Explanation:

Essential fatty acids, or EFAs, are fatty acids that humans and other animals must ingest because the body requires them for good health but cannot synthesize them. Two essential fatty acids, linolenic and linoleic acid, cannot be synthesized in the body and must be obtained from food. These basic fats, found in plant foods, are used to build specialized fats called omega-3 and omega-6 fatty acids.

Each fat molecule is formed from 

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

  1. One glycerol molecule and one fatty acid molecule

  2. One glycerol molecule and three fatty acid molecules

  3. Three glycerol molecules and one fatty acid molecule

  4. Three glycerol molecules and three fatty acid molecules

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Correct Option: B
Explanation:

Fatty acids are long, straight chain carboxylic acids. A fat molecule is formed when three fatty acids molecules combine with one glycerol molecule to yield a triglyceride (another name for fat) along with three water molecules. Fats are not easily digested and are transported and stored as triglycerides.

So, the correct option is 'One glycerol molecule and three fatty acid molecules'.

One of the steroid for manufacturing antifertility pills obtained from Dioscorea is know as

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

  1. Diazepam

  2. Diosgenine

  3. Diazine

  4. Retrovaire

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Correct Option: B
Explanation:

Dioscorea spp, commonly known as Yams belong to family Dioscoreaceae. The true Yams, belonging to the genus Dioscorea are grown throughout the wetter tropics for their stem tubers. They are important sources of food for millions of people in the tropics, especially in the south western Nigeria where they are a staple food. Dioscorea is a large genus with about 600 tropical or subtropical species. Yams constitute a cheap source of carbohydrate foods and are nutritionally better than cassava because of a higher proportion of proteins. They also contain more of vitamin C.
In recent years, wild species have been much used for the extraction of steroidal sapogenins which can be converted into cortisone, into the testosterone (male hormone) and the oestrogens as well as progesterones (female hormones). Three wild species particularly D. composita, D floribunda, D. mexicana have been used as a source material for the manufacture of oral contraceptives. In this way this genus has contributed significantly towards controlling the world population.

Gaucher's disease is concerned with which of the following condition?

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

  1. Abnormal fat metabolism

  2. Abnormal protein metabolism

  3. Abnormal carbohydrate metabolism

  4. None of the above

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Correct Option: A
Explanation:

Gaucher disease is a rare genetic disorder characterized by the deposition of glucocerebroside in cells of the macrophage-monocyte system. The disorder results from the deficiency of the enzyme glucocerebrosidase.

Select the correct option:

An unknown liquid collected from a sample of peas, is added to a beaker of water and is vigorously shaken. After few minutes, water and the unknown liquid made two separate layers. To which class of biomolecules, does the unknown liquid most likely belongs?

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

  1. Polysaccharides

  2. Proteins

  3. Lipids

  4. Enzymes

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Correct Option: C
Explanation:

The term Lipid was coined by Bloor.

Lipids are the esters of fatty acid and alcohol. These are hydrophobic that is these are insoluble in water but soluble in benzene, ether and chloroform.
As these are insoluble in water when they are added with water they separate to form two layers.

So, the correct option is 'Lipids'

The molecule used by most animals for long term energy storage is

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

  1. Starch

  2. Fat

  3. Cholesterol

  4. Glycogen

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Correct Option: B
Explanation:
The primary cellular function of fatty acids is long term energy storage. The body stores small amount of excess nutrients as triglycerides for storage. Triglycerides are efficient energy storing molecules as more energy can be stored in fat than in glycogen. Fat contains 9 kcal per gram whereas carbohydrates and protein only contain 4 kcal per gram. In other words, fat is more calorie dense so can hold a greater amount of energy in a smaller space
So, the correct answer is 'Fat'

A gram of butter provides more energy that 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:

Carbohydrates which includes  sugars and starches, contain 4 calories per gram, and are considered one of the main sources of energy for the human body. Fats on the other hand give 9 calories per gram,which is approximately 2.5 times more energy than carbohydrates. Moreover, fats contain more carbon-carbon and carbon-hydrogen bonds than carbohydrates or proteins and are therefore richer in energy. 

Therefore, the correct answer is option B.