Human Health and Nutrition

The body's requirement of protein (for an adult) is 1 gram per kilogram of body mass.  The body's requirement of protein (for an adult) is 1 gram per kilogram of body mass.

Statement (1) is correct. The normal level of cholesterol in human blood is 180-200 mg. Statement (2) is incorrect. The abnormal level of cholesterol is associated with hardening of arteries.

The human body is approximately 60-70% water by weight. This water is distributed in intracellular fluid (inside cells), extracellular fluid (blood plasma, interstitial fluid), and other bodily fluids. This percentage varies with age, body composition, and gender, but 60-70% is the accepted physiological range for adults.

The tolerable upper limit level of folic acid is 1 mg/day. Higher levels can lead to permanent neurological damage.

A balanced diet for an adult working man requires approximately 600 grams of carbohydrate-rich foods and 70-100 grams of protein foods daily. Option D correctly reflects this ratio with 600 gm of carbohydrates and 420 gm of protein foods. The other options either reverse the ratio or suggest equal amounts, which doesn't align with nutritional requirements where carbohydrates should provide the bulk of calories.

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.

Human saliva production typically ranges from 0.75 to 1.5 liters per day, averaging about 1-1.5 liters for a healthy adult. This varies based on hydration, diet, and individual factors. 1.5 liters represents the upper end of normal production.

In body of a normal adult human, about 15 liters of extra-cellular fluid (ECF) is present.

The number of WBCs in adult male is 4000 - 8000 per cubic millimeter.

The balanced diet for an adult working man (as per ICMR guidelines) should include approximately 600 grams of carbohydrates and 420 grams of total protein per day. Carbohydrates are the primary energy source, while proteins are needed for tissue repair and growth. These amounts are based on caloric requirements of a moderately active adult male. Option A correctly states these proportions.

The normal systolic pressure is about 120 mm of Hg and diastolic pressure is 80 mm of Hg. So, option 4 is correct.

A systolic blood pressure reading of 140-159 mm Hg indicates HBP stage 1. In this situation, the diastolic blood pressure may be 90-99 mm Hg.

 It is 37,500 units. Danger level - Average daily requirement X Time required to get emergency                                                                                  Supply                                                   7,500 X 5  = 37,500 units Danger level of stock is that if the stock reaches below this level, urgent action for replenishment of stock must be taken to prevent stock-out-position.                                                                                

This is the correct answer. The accepted average calorie requirement in India is 2400 calories per person per day in rural areas.

80 mm of Hg is considered as the normal diastolic blood pressure.