Biology · General Awareness

Human Health and Nutrition

1,248 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

An adult human has _____ blood.

  1. 3 to 4 litres

  2. 5 to 8 litres

  3. 10 to 12 liters

  4. 12 to 14 liters
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

An average adult human has 5 to 6 liters of blood, approximately 7% of body weight. This can range from 4.5 to 5.5 liters in females and 5 to 6 liters in males. 3-4 liters is too low, and 10+ liters is far above normal capacity.

Multiple choice

The average blood pressure in a human being is

  1. 80/120

  2. 90/120

  3. 90/110

  4. 120/80
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The standard average blood pressure for a healthy adult is 120/80 mmHg, where 120 is the systolic pressure and 80 is the diastolic pressure.

Multiple choice

How many calories does an adult need to take in a day?

  1. 100 -500 cal.

  2. 500-1 cal.

  3. 1500 -2000cal.

  4. 2000-2500 cal.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Adults typically need 2000-2500 calories per day to maintain weight. This varies based on activity level, gender, age, and metabolism. Option D represents the standard dietary recommendation for adults.

Multiple choice

Directions: Read the following information and answer the given question.

Ria’s mother is suffering from high blood pressure. She went along with her mother to the hospital during her routine check up. She noticed that doctor is using a device to record blood pressure but she couldn’t recall its name. Immediately after reaching her home, she opened her textbook and found out the device’s name and told her mother to abstain from diet rich in oil and fats.

Which of the following is the correct diastole/systole reading for a healthy person?

  1. 120/80 mm of Hg

  2. 80/120 mm of Hg

  3. 40/80 mm of Hg

  4. 80/40 mm of Hg
Reveal answer Fill a bubble to check yourself
B Correct answer
Multiple choice

The daily requirement of protein for the adults is

  1. 1 gm/kg body weight

  2. 2 gm/kg body weight

  3. 1.5 gm/kg body weight

  4. 3 gm/kg body weight

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The recommended dietary allowance for protein for a healthy adult is generally accepted as 0.8 to 1.0 grams per kilogram of body weight. Among the provided options, 1.5 gm/kg is the closest standard recommendation for active individuals or specific clinical guidelines.

Multiple choice

The normal WBC count is :

  1. 4000-11000/cmm of blood.

  2. 1.5 -4 lakhs/cmm of blood.

  3. 4-5.5 million /cmm of blood.

  4. 15000-20000 /cmm of blood .
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

WBC or leukocytes are the white blood cells. The WBC cells are divided into granulocytes, consisting of eosinophil, basophil and neutrophil and agranulocytes, consisting of lymphocytes and monocytes. The normal WBC count is about 4000-11000/cmm of blood ,with 65% of neutrophil ,4% eosinophil ,0.5% basophil ,23% lymphocyte and 5% monocyte.

Multiple choice

What is normal blood pressure in humans?

  1. 120/80 mm of Hg

  2. 130/60 mm of Hg

  3. 140/70 mm of Hg

  4. 140/90 mm of Hg
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Normal resting blood pressure for a healthy adult is widely accepted as 120 mmHg systolic and 80 mmHg diastolic.

Multiple choice

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

  1. 10 to 16 grams per deciliter

  2. 12 to 18 grams per deciliter

  3. 14 to 20 grams per deciliter

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The normal hemoglobin range for a healthy adult male is typically 13.5 to 17.5 g/dL, and for a female, it is 12.0 to 15.5 g/dL. Option B (12 to 18) is the most accurate range provided.

Multiple choice

In a patient on anticoagulant therapy, INR is maintained at

  1. 1.5 to 2.5 times the normal

  2. 2.5 to 3.0 times the normal

  3. 4.5 to 5.0 times the normal

  4. none of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

For most patients on long-term oral anticoagulant therapy (like warfarin), the target INR is typically between 2.0 and 3.0. Option A (1.5 to 2.5) is a common lower-range target or historical reference, but 2.0-3.0 is the standard therapeutic range.

Multiple choice

Directions: Change the narration.

"How much chocolate do you eat every day?", the dentist asked the little boy.

  1. The dentist asked the boy how much chocolate will he eat every day.

  2. The dentist asked the boy how much chocolate he eats every day.

  3. The dentist asked the little boy how much chocolate he ate every day.

  4. How much chocolate he eats every day asked the dentist to little boy.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Since the reporting verb is in simple past tense and the addressee is a boy, 'you eat' will be replaced by 'he ate'. Also, the question is converted into a statement.