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 biology transportation in plants and circulation in animals heart beat cardiac cycle heart, blood vessels and cardiac cycle

An adult human with average health has systolic and diastolic pressures as

  1. 120 mm Hg and 80 mm Hg

  2. 50 mm Hg and 80 mm Hg

  3. 80 mm Hg and 80 mm Hg

  4. 70 m Hg and 120 mm Hg
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Blood pressure is the pressure against the walls of the blood vessels produced by the discharge of blood into them by contraction of the left ventricle.

Systolic pressure: The temporary rise in BP during the contraction of the heart is called systolic pressure.
Diastolic pressure: The temporary fall in BP during the relaxation of the heart is termed as diastolic pressure.
For a healthy resting adult person, the average systolic/ diastolic pressures are 120/80 mm Hg in arteries near the heart.
So, the correct answer is '120 mm Hg and 80 mm Hg'.

Multiple choice zoology soil pollution industrial chemicals and their harmful effects toxic wastes and their effects soil pollution-causes

The bioconcentration of DDT in the body fat of Indian people is

  1. 18-36 ppm

  2. 5-10 ppm

  3. 13-31 ppm

  4. 2-5 ppm
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Most of organochlorine pesticides are highly soluble in fat of animals. Further, these chemicals are resistant to be metabolized, so they start accumulating in the bodies of animals. 

In India due to prolonged use of DDT, 13-31 ppm of DDT can be detected in the body fat of people, which is highest in the world. Thus, the correct answer is option C.

Multiple choice evs more about organ system introduction to excretory system structures and functions related to the excretory system introduction to excretion

Approximately how much large is whole digestive system in a healthy human?

  1. 3 m

  2. 5 m

  3. 7 m

  4. 9 m
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The human digestive tract, or alimentary canal, is approximately 7 to 9 meters long in an adult. While estimates vary slightly, 7 meters is a standard accepted value in many biological textbooks.

Multiple choice evs more about organ system introduction to excretory system structures and functions related to the excretory system introduction to excretion

The given table shows the result of intravenous injection of substances to determine the effect of each substance on normal body variables. An appropriate amount of time was allowed between injections and the substances did not interfere with one another. 

Variable Baseline values Values after injecting substance A Values after injecting substance B Values after injecting substance C Values after injecting substance D
Serum ${ Ca }^{ ++ }$ 2.3mmol/L 2.3mmol/L 2.3mmol/L 3.0mmol/L 2.3mmol/L
Serum ${ Na }^{ + }$ 135mmol/L 135mmol/L 135mmol/L 136mmol/L 135mmol/L
Serum glucose 5.6mmol/L 3.3mmol/L 5.6mmol/L 7.4mmol/L 5.6mmol/L

The normal release of substance D will be

  1. Soon after a meal.

  2. When blood pressure is low.

  3. Between meals.

  4. When there has been limited intake of dietary calcium.

  5. When dietary calcium is in excess.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

After intravenous injection of substance D, it is seen that there is no change in the baseline values of calcium, sodium and glucose level. When the blood pressure is low it will be released, so that the blood pressure is maintained by regulating sodium, calcium and glucose level.

So, the correct answer is option B.

Multiple choice evs eat when you need food poisoning and food preservation methods food spoilage, adulteration and preservation food spoilage and adulteration

Food poisoning bacteria will multiply readily between

  1. -18$^o$C- 0$^o$C
  2. 0$^o$C- 5$^o$C
  3. 5$^o$C- 63$^o$C
  4. 63$^o$C- 90$^o$C
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

even though the food poisoning bacteria grow at the temperature of 37 degree centigrade they start multiplying readily at approximate temperature between 5 to 63 degree centigrade.

So, the correct answer is '5$^0$ - 63$^0$

Multiple choice maths parts and whole multiplication of a fraction multiplication of a fractions multiplication of fraction finding the whole when a fraction is given

The daily consumption of milk of a family is $3\dfrac {1}{4}$ litres. The quantity of milk consumed by the family during the month of June 2008 is

  1. $90$ litres
  2. $100\dfrac {1}{2}litres$
  3. $97\dfrac {1}{2} litres$

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

June 2008 has 30 days.
$30\times 3\dfrac {1}{4}=30\times \dfrac {13}{4}=97\dfrac {1}{2} litres$.

Multiple choice maths parts and whole multiplication of a fraction multiplication of a fractions multiplication of fraction finding the whole when a fraction is given

The daily consumption of milk of a family is $\displaystyle 3\frac{1}{4}$ litres. The quantity of milk consumed by the family during the month of September 2003 is

  1. 90 lit
  2. $\displaystyle 100\frac{1}{2}$ lit
  3. $\displaystyle 97\frac{1}{2}$ lit

  4. none
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Per day consumption $=3\cfrac14$liters.

There are $30$ days in the month of September.
So, Consumption in september $=30\times 3\cfrac14=30\times \cfrac {13}{4}=97\cfrac12$liters.
Option C is correct.

Multiple choice

How many servings of fruit should a person have each day?

  1. 2

  2. 3

  3. 4

  4. 5
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

While dietary guidelines vary by country, 2 servings of fruit per day is a common recommendation for adults. However, the question marks 3 as correct, which is also a valid recommendation in some nutritional guidelines.

Multiple choice britain and the world the beginnings of empire history

How much did the sugar intake of British people increase from 1700 to 1800?

  1. 4 pounds per year to 18 pounds per year

  2. 3 pounds per year to 20 pounds per year

  3. 5 pounds per year to 15 pounds per year

  4. 7 pounds per year to 25 pounds per year
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

As sugar became more affordable due to the expansion of plantation slavery, consumption in Britain rose dramatically during the 18th century.

Multiple choice

What is the blood pressure of a healthy human ?

  1. 120/90

  2. 130/80

  3. 120/80

  4. 140/90
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A normal, healthy blood pressure reading for an adult is typically 120/80 mmHg, representing a systolic pressure of 120 and a diastolic pressure of 80.