Tag: health and hygiene - food for living

Questions Related to health and hygiene - food for living

In a digestion tank, produced gases has a high

biology health and hygiene - food for living energy from different food components nutritional requirements of the body need for nutrients

  1. Calorific value

  2. density

  3. Gas Value

  4. Digestion Value

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Correct Option: A

Energy value per gram of alcohol is

biology health and hygiene - food for living energy from different food components nutritional requirements of the body need for nutrients

  1. $4\ kcal$

  2. $4.3\ kcal$

  3. $9.3\ kcal$

  4. $7.1\ kcal$

Show answer
Correct Option: D
Explanation:

Just like any food or drink, alcoholic drinks contain energy or calories. There are 7 calories per gram of alcohol (29kJ). A 'standard' alcoholic drink or 'unit' contains 8 grams of alcohol, which is equal to 56 calories from the alcohol alone. 

So, the correct answer is '7.1 kcal'.

Which is useful in human beings?

biology health and hygiene - food for living energy from different food components nutritional requirements of the body need for nutrients

  1. Cholesterol

  2. Animal fat

  3. High density lipoprotein cholesterol

  4. Low density lipoprotein cholesterol

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Correct Option: C
Explanation:

Molecules called lipoproteins to carry cholesterol in the blood. Two important kinds of lipoproteins are low-density lipoprotein (LDL) and high-density lipoprotein (HDL). LDL cholesterol is often referred to as "bad cholesterol" because too much is unhealthy. HDL is often referred to as “good cholesterol” because it is protective.

So, the correct answer is 'High-density lipoprotein cholesterol'.

Steroid is a/an

biology health and hygiene - food for living minerals and vitamins nutrition and diet role of various nutrients

  1. Cholesterol

  2. Vitamin

  3. Organic compound

  4. Fatty acid ester

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Correct Option: A
Explanation:

Steroids like cholesterol are crystallisable lipids having four hydrocarbon rings (phenanthrene, consisting of three cyclohexane and one cyclopentane) and a long hydrocarbon side chain. Fatty acids are absent. Sterols are precursors of steroid hormone and vitamin D. They are essential for plant growth and flowering. Cholesterol forms bile salts and hence, essential for absorption of fatty acids.