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1. What is the definition of a calorie? - Correct Answer: A calorie is the
amount of heat or energy required to raise the temperature of 1 g of water
by 1°C.
2. How many calories are derived from the oxidation of 1 g of protein? -
Correct Answer: 4 kcal/g
3. How many calories are derived from the oxidation of 1 g of fat? -
Correct Answer: 9 kcal/g
4. How many calories are derived from the oxidation of 1 g of carbohydrate? -
Correct Answer: 4 kcal/g
5. What is the difference between hunger, appetite, and satiety? - Correct
Answer: Hunger is the physiological need for food, appetite is the desire to
eat, and satiety is the feeling of fullness after eating.
6. What is the role of neurohormones in food intake? - Correct Answer:
Neurohormones interact in both short-term and long-term mechanisms to
control food intake.
,7. What does BMI stand for and how is it used? - Correct Answer: BMI
stands for Body Mass Index and is used to evaluate body weight.
8. What are the two types of protein malnutrition? - Correct Answer:
Marasmus (protein-calorie starvation) and kwashiorkor (protein
malnutrition).
9. What are some health risks associated with obesity? - Correct Answer:
Obesity can lead to various health risks including diabetes, heart disease,
and certain cancers.
10.What are the treatment options for obesity? - Correct Answer:
Treatment options include diet, behavior modification, exercise, social
support, pharmacotherapy, and surgical methods.
11.What is the effect of malnutrition on muscle mass? - Correct Answer:
Malnutrition can lead to loss of muscle mass.
12.How does malnutrition affect respiratory function? - Correct Answer:
Malnutrition can impair respiratory function.
13.What is the impact of malnutrition on immune function? - Correct
Answer: Malnutrition can weaken immune function.
,14.What are the two phases of metabolism? - Correct Answer: Anabolism
(storage and synthesis) and catabolism (breakdown of complex molecules).
15.What is ATP and why is it important? - Correct Answer: ATP, or
adenosine triphosphate, is the energy currency of the cell, used for energy
storage and transfer.
16.What is the primary storage site for body energy? - Correct Answer:
Adipose tissue.
17.What are adipocytes? - Correct Answer: Adipocytes are fat cells that
store energy in the form of lipids.
18.What is the difference between white fat and brown fat? - Correct
Answer: White fat stores energy and provides insulation, while brown fat
generates heat and is less efficient at producing ATP.
19.What is the caloric value of alcohol? - Correct Answer: 7 kcal/g
20.What happens when energy expenditure exceeds nutrient intake? -
Correct Answer: Energy stores are lost and body weight decreases.
21.What is the role of the digestive tract in nutritional status? - Correct
Answer: The digestive tract is responsible for the ingestion and absorption
of nutrients.
, 22.What is ectopic deposition in the context of lipids? - Correct Answer:
Ectopic deposition refers to the accumulation of lipids in tissues like the
liver, interfering with normal cell function.
23.What is the significance of energy metabolism? - Correct Answer:
Energy metabolism enables the continual release of energy for physiological
functions.
24.What is the relationship between energy intake and body weight stability? -
Correct Answer: Body weight stability requires that energy intake be
balanced with energy expenditure.
25.How can medications affect fat cell numbers? - Correct Answer: Some
medications can stimulate the formation of new fat cells or cause loss of fat
cells.
26.What is the lifespan of fully differentiated adipocytes? - Correct Answer:
Fully differentiated adipocytes have a long lifespan and do not divide.
27.What is the effect of increased programmed cell death in adipocytes? -
Correct Answer: It can lead to lipodystrophy, a condition characterized by
loss of fat cells.