Tag: food components and nutrition

Questions Related to food components and nutrition

Water has 

biology food components and nutrition water as nutrient basics of water pollution sources of water

  1. High surface tension and low thermal conductivity.

  2. Low surface tension and low thermal conductivity.

  3. High surface tension and high thermal conductivity.

  4. Low surface tension and high thermal conductivity.

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Correct Option: C

Percentage of water in the body of a living being like human is 

biology food components and nutrition water as nutrient basics of water pollution sources of water

  1. 10-20 % 

  2. 50 % 

  3. 70 - 80% 

  4. 90-95 % 

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Correct Option: C

In contact with water, phospholipids forms

biology food components and nutrition water as nutrient basics of water pollution sources of water

  1. Rounded aggregates

  2. Monolayer

  3. Bilayer

  4. All of the above

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Correct Option: C

Hydrogen bonds amongst water molecules have bestowed the property of 

biology food components and nutrition water as nutrient basics of water pollution sources of water

  1. Liquid with ability to flow.

  2. High velocity, high specific heat and high heat of vaporisation.

  3. High boiling point and low freezing point.

  4. All of the above.

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Correct Option: D

In a living systems, water is involved as a chemical in

biology food components and nutrition water as nutrient basics of water pollution sources of water

  1. Photosynthesis and repiration

  2. Synthesis of polymers

  3. Hydrosis of biochemicals

  4. All of the above

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Correct Option: D

Water is an end product in which of the following process?

biology food components and nutrition water as nutrient basics of water pollution sources of water

  1. Glycogenolysis

  2. Hydrostatic skeleton

  3. Respiration

  4. Carbon assimilation

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Correct Option: C

Living cell contains $60 - 75$% water. Water present in human body is

biology food components and nutrition water as nutrient basics of water pollution sources of water

  1. $60 - 65$%

  2. $50 - 55$%

  3. $75 - 80$%

  4. $65 - 70$%

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Correct Option: D
Explanation:
Our cells are made of 60-75% water, hence most of the enzymes and protein molecules, our genetic material, all are water soluble and are evolved in a way to co-exist in water surrounding environment. Thus our proteins are folded in a way where the hydrophobic amino acid residues are folded inside the protein and hydrophilic residues face the hydrated outer environment. Similarly our DNA, RNA are all water soluble. Since the structural and functional unit of our body, consists of 60-75% of water hence, the entire human body is expected to have similar water content.
So, the correct answer is '65−70%'.

When a litre of water is introduced in human blood, 

biology food components and nutrition water as nutrient basics of water pollution sources of water

  1. BMR decreases

  2. RBCs collapse and urine production increases

  3. BMR increases

  4. RBCs collapse and urine production decreases

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Correct Option: B

X is one of the important components of food. Wheat, pearl millet and sweet potato are rich sources of X, X gives a blue-black colour with a dilute solution of iodine. Identify X.

biology food components and nutrition simple test for nutrients test for nutrients protein and its function

  1. Minerals

  2. Fats

  3. Proteins

  4. Carbohydrates

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Correct Option: D
Explanation:

  • Starch gives blue-black colour with Iodine and is used as a test. Starch is a polysaccharide(carbohydrate).

So, the correct option is 'Carbohydrates'.

Nutrition of animals is related to

biology food components and nutrition need for nutrients nutrition and its deficiency nutrition and its need

  1. Trophology

  2. Teratology

  3. Dysteleology

  4. Tricology

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Correct Option: A
Explanation:
A- Food combining (also known as trophology) is a term for a nutritional approach that advocates specific ingestion and combinations of foods as central to good health and weight loss.
B- Teratology is the medical discipline that focuses on birth defects and congenital abnormalities. Most teratological professionals provide consultative services to pregnant women, or engage in complex research. 
C- Absence of purpose in nature especially as manifested in rudimentary or nonfunctional structures.
D- Trichology is the branch of dermatology concerned with the health of hair and scalp. Trichology helps in diagnosis of the causes of hair fall, hair breakage, hair thinning, miniaturization of hairs, diseases of the scalp and treat the diseases.
So, the correct option is 'Trophology'.