Biology ยท 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

The blood glucose level is commonly expressed as

  1. Millimeter of Hg

  2. Milligram per deciliter

  3. Parts per million

  4. Grammas per liter
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Blood glucose is measured in milligrams per deciliter (mg/dL) as the standard medical unit. Millimeters of Hg measures pressure, not concentration. Parts per million is for very dilute solutions. Gram per liter is used but mg/dL is more common in clinical practice.

Multiple choice

The normal range of haemoglobin in the blood of a healthy adult person is from

  1. 10 to 16 grams per deciliter

  2. 12 to 18 grams per deciliter

  3. 14 to 20 grams per deciliter

  4. 8 to 15 grams per decilier
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Normal haemoglobin range for healthy adults is 12-18 g/dL (grams per deciliter). Males typically range 13.5-17.5 g/dL, while females range 12-15.5 g/dL, making 12-18 an acceptable general range. Option A (10-16) is too low for adults, Option C (14-20) is too high, and Option D has a typo (decilier) plus incorrect range.

Multiple choice

Which of the following statements is/are false?

a. Salts of calcium and phosphorus are required for making bones and teeth hard. b. Minerals have no energy value and are required in small quantities. c. Fats help the body in its growth and repair of body cells and tissues.

  1. Only a

  2. Only a and b

  3. Only b

  4. Only c

  5. Only b and c
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is the correct option as this statement is false. Proteins help the body in its growth and repair of body cells and tissues.

Multiple choice

Which of the following is not true about dietary allowance?

  1. Adequate intake

  2. RDA

  3. Dietary intake according to food composition

  4. Food intake according to the upper limit of the RDA
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Dietary allowance concepts include RDA (Recommended Dietary Allowance), Adequate Intake (AI), and Tolerable Upper Intake Level (UL). Food intake according to the upper limit of RDA is NOT a valid concept - UL is separate from RDA and represents the maximum safe intake, not a target intake level.

Multiple choice

How much water should we drink per day?

  1. 8-ounce glasses.

  2. 13-ounce glasses.

  3. 2-ounce glasses.

  4. 3-ounce glasses.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The common recommendation is to drink 8 glasses (8 ounces each) of water daily, totaling about 2 liters. This general guideline ensures adequate hydration for most adults under normal conditions. However, individual water needs vary based on activity level, climate, and body composition.

Multiple choice

Which of the following statements is incorrect?

  1. Vitamin A promotes growth and vision.

  2. Magnesium is helpful in bone and teeth formation.

  3. Fibrous food is good for proper movement of food in alimentary canal.

  4. Iron helps make the blood red.

  5. Roughage contains all the components of food.
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This statement is incorrect. Roughage contains fibre.