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

The national calorie standard was established as _____ kcal per day for urban areas.

  1. 2100

  2. 2400

  3. 2000

  4. 2700
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
The Planning Commission in July 1977 constituted the Task Force on “Projections of Minimum Needs and Effective Consumption Demand” under the Chairmanship of Dr. Y. K. Alagh. The Task Force submitted its report in January 1979 and the Planning Commission accepted its recommendations in the same month. The Task Force provided a quantitative measure of poverty. The estimated calorie norm was 2400 kcal per capita per day in rural areas and 2100 kcal per capita per day in urban areas. Hence, Option A is correct.
Multiple choice hunger and dehydration from tasting to digestion digestion of food digestion evs

Amount of water present inside human body cells is about

  1. 15 litres

  2. 5 litres

  3. 25 litres

  4. 10 litres
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • About 60% of human body weight is due to water and is mainly present within the cells of the body.
  • Intracellular fluid (within the cell) constitutes about 2/3 of body water.
  • Eg- In a person weighing 72 kg, 40 litres of fluid is present in the body out of which about 25 litres of water is present in the intracellular region (within the cells).
  • So, the correct answer is '25 litres'.
Multiple choice biology structure and functions of living organisms -ii dental care, eye care and hair care dental care and dental diseases salivary glands

With reference to a normal human being, which one of the following statements is not correct?

  1. Human saliva is slightly alkaline
  2. An adult human may secrete $1-1.5$L of saliva per day

  3. Saliva is secreted by six pairs of salivary glands in human beings

  4. The salivary enzyme(ptyalin) breaks down cooked starch into maltose
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice bio-chemistry human body and organ system role of blood in transport function of blood blood and lymph body fluid

Normal blood glucose level is

  1. 50-80 mg/I00 ml

  2. 50-100 m/1000 ml

  3. 80-100 mg/100 ml

  4. 80-300 mg/1000 ml.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Normal fasting blood glucose is 80-100 mg/100 ml (70-100 mg/dL is the modern standard range). Option A is too low (hypoglycemic range), option B has wrong units, and option D's upper limit is hyperglycemic.

Multiple choice bio-chemistry digestive system of human digestive system- glands mouth and buccal cavity digestive glands

With reference to a normal human being, which one of the following statements is not correct?

  1. Human saliva is slightly acidic
  2. An adult human may secrete $1$ to $1.5$ litres of saliva per day

  3. Saliva is secreted by six pairs of salivary glands in human beings

  4. The salivary enzymes(ptyalin) breaks down cooked starch into maltose
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice bio-chemistry digestive system of human digestive system- glands mouth and buccal cavity digestive glands

Amount of saliva secreted daily in humans is

  1. 250 ml

  2. 500 ml

  3. 100 ml

  4. 1000 ml
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

There are three major parts of salivary glands that secrete saliva with the digestive enzyme such as parotid, submandibular and sublingual glands. Normally secretion of saliva is constant, regardless of the presence of food in the mouth. The amount of saliva secreted in 24 hours usually amounts from 1 liter to 1.5 litres. 

Therefore, the correct answer is option D.

Multiple choice bio-chemistry digestive system of human digestive system- glands mouth and buccal cavity digestive glands

Which is not correct

  1. Human saliva is near neutral

  2. An adult secretes 1.0 1.5 l of saliva per day

  3. Saliva is secreted by six pairs of glands

  4. Ptyalin breaks down cooked starch into maltose
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

There are three pairs of salivary glands (parotid, submandibular, and sublingual), not six pairs. Therefore, the statement that there are six pairs is incorrect.

Multiple choice bio-chemistry digestive system of human digestive system- glands mouth and buccal cavity digestive glands

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

Humans produce between one-fifth and one-third of a gallon (0.75 to 1.5 liters) of saliva every day. However, saliva production mostly takes place while a person is awake. During sleep, saliva production drops to almost nothing. Most of the saliva comes from the glands at the bottom of the mouth, and the rest comes primarily from the parotid glands, near the top back of the mouth.