Biology · General Awareness

Human Health and Nutrition

1,275 Questions

Human Health and Nutrition focuses on dietary requirements, daily intake recommendations, and the physiological effects of various nutrients. It includes topics such as water consumption, fiber intake, and allergies. These questions are vital for the biology and general science sections of multiple competitive exams.

Recommended Daily IntakeMacronutrient ContentVitamin RequirementsFood AllergiesDigestive HealthHydration Guidelines

Human Health and Nutrition Questions

Multiple choice

Consider the following statements:

  1. The normal cholesterol level in human blood is 180-200 mg.
  2. The abnormal level of cholesterol is associated with the formation of kidney stone.

Which of the given statements is/are correct?

  1. Only (1)

  2. Only (2)

  3. Both (1) and (2)

  4. Neither (1) nor (2)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Statement (1) is correct. The normal level of cholesterol in human blood is 180-200 mg. Statement (2) is incorrect. The abnormal level of cholesterol is associated with hardening of arteries.

Multiple choice

Human body contains ______ percent water.

  1. 60-70

  2. 70-80

  3. 50-60

  4. 30-40
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The human body is approximately 60-70% water by weight. This water is distributed in intracellular fluid (inside cells), extracellular fluid (blood plasma, interstitial fluid), and other bodily fluids. This percentage varies with age, body composition, and gender, but 60-70% is the accepted physiological range for adults.

Multiple choice

In the balanced diet for a day of an adult working man, weight of carbohydrate food and total protein food (both superior and inferior) should be in the order of

  1. 420 gm and 600 gm respectively

  2. 600 gm and 600 gm respectively

  3. 420 gm and 420 gm respectively

  4. 600 gm and 420 gm respectively
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A balanced diet for an adult working man requires approximately 600 grams of carbohydrate-rich foods and 70-100 grams of protein foods daily. Option D correctly reflects this ratio with 600 gm of carbohydrates and 420 gm of protein foods. The other options either reverse the ratio or suggest equal amounts, which doesn't align with nutritional requirements where carbohydrates should provide the bulk of calories.

Multiple choice

Normal human adult male has

  1. 10 gm of haemoglobin/100 gm of blood

  2. 08 gm of haemoglobin/100 gm of blood

  3. 18 gm of haemoglobin/100 gm of blood

  4. 14 gm of haemoglobin/100 gm of blood
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The amount of hemoglobin in the blood averages between 12 and 16 grams/100 milliliters of blood in adult females, about 14 and 18 in males, and somewhat less in children.

Multiple choice

What is the average quantity of the daily saliva produced by a human being?

  1. 1 litre

  2. 1.5 litres

  3. 2 litres

  4. 2.5 litres
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Human saliva production typically ranges from 0.75 to 1.5 liters per day, averaging about 1-1.5 liters for a healthy adult. This varies based on hydration, diet, and individual factors. 1.5 liters represents the upper end of normal production.

Multiple choice

Proteins are needed by our body for ____________________.

  1. growth

  2. formation of muscles

  3. repair of worn out tissues

  4. growth of the body and formation of muscles

  5. growth of the body, formation of muscles and repair of worn out tissues
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

It is correct. Proteins help our body in its growth, formation of muscles and repair of worn out tissues. 

Multiple choice

What is the WBC count of a normal adult male?

  1. 8000 - 12000 per cubic millimeter.

  2. 2000 - 4000 per cubic millimeter.

  3. 1000 - 3000 per cubic millimeter.

  4. 4000 - 8000 per cubic millimeter.

  5. 6000 - 10000 per cubic millimeter.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The number of WBCs in adult male is 4000 - 8000 per cubic millimeter.

Multiple choice

In the balanced dietary for a day of an adult working man, weights of carbohydrate food and total protein food (both superior and inferior) should be in order of

  1. 600 gm and 420 gm respectively

  2. 600 gm and 600 gm respectively

  3. 420gm and 600 gm respectively

  4. 420 gm and 420 gm respectively
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The balanced diet for an adult working man (as per ICMR guidelines) should include approximately 600 grams of carbohydrates and 420 grams of total protein per day. Carbohydrates are the primary energy source, while proteins are needed for tissue repair and growth. These amounts are based on caloric requirements of a moderately active adult male. Option A correctly states these proportions.