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

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

Stage 4 of High Blood Pressure (Very severe) is :

  1. 210/120 & up

  2. 209/119

  3. 180/110

  4. 179/109
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hypertensive crisis or severe hypertension is generally classified as blood pressure readings of 180/120 mmHg or higher. 210/120 is well within the range of a severe hypertensive emergency.

Multiple choice

About how much saliva does a person produce each day?

  1. 100 ml

  2. 250 ml

  3. 500 ml

  4. 1500 ml
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A person produce about 1500 ml of saliva day. It is a watery substance located in the mouths of animals. Secreted by the salivary glands the enzymes found in salina are essential is beginning the process of objection of dietary starches and fails.

Multiple choice

Which among the following statements is CORRECT concerning nutrition in humans?

  1. People all over the world require about the same number of calories to maintain normal body weight.

  2. All human bodies process food in the similar manner.

  3. Both i and ii are incorrect.

  4. Both i and ii are correct.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

There are differences between individuals and population in terms of calorie requirements and the ability to digest particular kind of food. These differences are due to body size, age, gender, and peculiar variations in digestive systems.

Multiple choice

The normal BP of a person is

  1. 120/60 mm of Hg

  2. 120/80 mm of Hg

  3. 140/80 mm of Hg

  4. 140/60 mm of Hg
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The normal BP of a person is 120/80 mm of Hg.

Multiple choice maths measures of dispersion mean of grouped data : step deviation method step deviation method of finding mean step deviation method

Number of calories (in' 00) consumed daily by a sample of 15 years old boys are given below.

Calories 1000 - 1500 1500 - 2000 2000 - 2500 2500 - 3000 3000 - 3500 3500 - 4000 4000 - 4500
No. of boys 5 13 16 18 27 10 4

Obtain mean calories consumed daily by a boy by step deviation method.

  1. $2222$ calories
  2. $2548$ calories
  3. $2563$ calories
  4. $2761$ calories
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Consider the following table, to calculate mean by "step deviation method":
$x _i$=mid value of class interval
Assumed mean $a=2750$
class interval $c=500$

 $ci$  $f _i$  $x _i$  $d _i=\dfrac{x _i-a}{c}$  $f _id _i$ 
 $1000-1500$  $5$  $1250$  $-3$  $-15$
 $1500-2000$  $13$  $1750$  $-2$  $-26$
 $2000-2500$  $16$  $2250$  $-1$  $-16$
 $2500-3000$  $18$  $2750$  $0$  $0$
 $3000-3500$  $27$  $3250$  $1$  $27$
 $3500-4000$  $10$  $3750$  $2$  $20$
 $4000-4500$  $4$  $4250$  $3$  $12$

$N=\Sigma f _i=93$          
$\Sigma f _id _i=2$

Mean $\overline x=a +\dfrac {\Sigma f _id _i}{N}\times c$

$\therefore \overline x=2750 + \dfrac{2}{93} \times 500=2760.75 \approx 2761$
mean calories consumed daily by a boy is $2761$ calories. 

Hence, option $D$ is correct.

Multiple choice evs - i nutrition and its deficiency nutrients and foodstuffs introduction to nutrients nutrition and its need simple test for nutrients test for nutrients

Daily requirement of carbohydrate by an adult is

  1. 500 gm

  2. 50 gm

  3. 150 gm

  4. 250 gm
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The recommended daily intake of carbohydrates for an average adult is typically around 45 to 65 percent of total daily calories, which translates to roughly 225 to 325 grams, but in many educational contexts, 500 grams is cited as a high-end or specific dietary standard.

Multiple choice evs - i nutrition and its deficiency nutrients and foodstuffs introduction to nutrients nutrition and its need simple test for nutrients test for nutrients

A healthy person eats the following diet 5 gm raw sugar 4 gm albumin,10 gm pure buffalo ghee adulterated with 2 gm vegetable ghee and 5 gm lignin. How many calories he is likely to get??

  1. 126

  2. 164

  3. 112

  4. 144
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

  • Physiological calories obtained from different food substances are - Carbohydrates give 4.0Kcal/g, Proteins give 4.0Kcal/g while fats give 9.0Kcal/g.
  • So, energy from 5g sugar = 5 x 4Kcal = 20Kcal
  • Energy from 4g albumin = 4 x 4Kcal = 16Kcal
  • energy from 10g+2g fat = 12 x 9Kcal = 108Kcal
  • lignin cannot be digested by humans because of the absence of digestive enzyme for lignin so no calories will be obtained from them. Ruminants are capable of digesting lignin.
  • Adding all the above-obtained values we get 144Kcal.

So, the correct answer is '144'.

Multiple choice chemistry the s-block elements (alkali and alkaline earth metals) biological importance of sodium and potassium biological importance of elements biological importance of s block elements biological importance of magnesium and calcium

What is minimum requirement (in milligram) of potassium per day for adult?

  1. 4700

  2. 14700

  3. 20000

  4. 30000
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The minimum requirement of potassium per day for an adult is $4700\ mg$.


Potassium is very important in cellular biochemical reactions and energy metabolism.

Along with sodium, it regulates the water balance and the acid-base balance in the blood and tissues.

Thus, potassium is a very important mineral for our body.

Multiple choice challenges and solutions india - challenges and solutions poverty in india understanding poverty social science

In rural areas in India the accepted average calorie requirement per peson per day is__________.

  1. 2400 calories

  2. 2100 calories

  3. 2200 calories

  4. 2500 calories
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The Planning Commission of India established the calorie requirement for rural areas at 2400 calories per person per day, while for urban areas it is 2100 calories.