NYSTCE Health Education Exam Prep 1

Question 1

How many calories are in one gram of protein?

Accepted Answer

4

Answer

Proteins are one of the three macronutrients that provide energy to the human body. Each gram of protein supplies approximately 4 kilocalories (often simply referred to as calories) of energy. This caloric value is a key component in understanding nutritional content and dietary energy intake.

Question 2

Nutrient availability is influenced by:

Accepted Answer

All of the above

Answer

Nutrient availability, also known as bioavailability, is influenced by a complex interplay of factors. The physical size of food particles, the solubility of nutrients in the digestive tract, and their interactions with other food components or nutrients all impact how efficiently they are absorbed and utilized by the body. Therefore, all these elements collectively determine how much of a nutrient is truly available.

Question 3

When an individual is excreting more nitrogen than being consumed they are:

Accepted Answer

In negative nitrogen balance

Answer

Nitrogen balance is a measure of protein metabolism, comparing nitrogen intake to nitrogen excretion. When an individual excretes more nitrogen than they consume, it indicates that the body is breaking down more protein (e.g., muscle tissue) than it is synthesizing. This state is known as negative nitrogen balance and often occurs during periods of illness, injury, or insufficient protein intake.

Question 4

Which of the following is an enzyme:

Accepted Answer

Lipase

Answer

Lipase is a specific type of enzyme that plays a crucial role in the digestion of fats (lipids). It catalyzes the hydrolysis of fats into smaller molecules like fatty acids and glycerol, making them absorbable by the body. Sterols, sucrose, and phosphatidyl choline are not enzymes; they are types of lipids, sugars, and phospholipids, respectively.

Question 5

Magnesium excess may cause hypocalcemia by:

Accepted Answer

Modulating PTH release

Answer

Excess magnesium can disrupt calcium homeostasis by modulating the release of parathyroid hormone (PTH). High magnesium levels can suppress PTH secretion, and PTH is vital for maintaining normal blood calcium levels by promoting calcium release from bones and reabsorption in the kidneys. Reduced PTH activity consequently leads to decreased serum calcium, resulting in hypocalcemia.

NYSTCE Practice Test

NYSTCE Practice Test

NYSTCE Health Education Exam Prep 1