100% RATED ANSWERS
Which hormone primarily acts to suppress appetite and promote energy expenditure?
A) Ghrelin
B) Endocannabinoids
C) Leptin
D) Cortisol Answer: C) Leptin
\Rationale: Leptin is produced by fat cells and signals the brain to decrease hunger.
Which hormone is secreted by adipocytes and regulates long-term energy balance?
A) Ghrelin
B) Leptin
C) GLP-1
D) Insulin Answer: B) Leptin
Rationale: Leptin helps regulate long-term energy balance by reducing appetite and increasing
metabolism.
What is the primary role of glucagon-like peptide-1 (GLP-1)?
A) Stimulate hunger
,B) Promote insulin secretion and satiety
C) Increase fat storage
D) Decrease gastric motility Answer: B) Promote insulin secretion and satiety
Rationale: GLP-1 enhances insulin release and promotes satiety, reducing food intake.
Adiponectin plays a role in which of the following metabolic processes?
A) Fat storage and appetite stimulation
B) Improving insulin sensitivity and lipid metabolism
C) Stimulating hunger
D) Increasing inflammation Answer: B) Improving insulin sensitivity and lipid metabolism
Rationale: Adiponectin improves glucose uptake and fatty acid oxidation, reducing obesity risk.
How does GLP-1 affect gastric emptying?
A) It speeds up gastric emptying
B) It has no effect on gastric motility
C) It slows down gastric emptying
D) It decreases insulin secretion Answer: C) It slows down gastric emptying
Rationale: GLP-1 delays gastric emptying, increasing satiety and prolonging digestion.
, What is leptin resistance?
A) The inability to produce leptin
B) A condition where the brain does not respond effectively to leptin
C) Excessive production of leptin leading to anorexia
D) The complete absence of appetite regulation Answer: B) A condition where the brain
does not respond effectively to leptin
Rationale: Leptin resistance occurs when high leptin levels fail to suppress hunger.
Which of the following factors contributes to leptin resistance?
A) Increased physical activity
B) Inflammation and high free fatty acid levels
C) High protein diet
D) Enhanced metabolic rate Answer: B) Inflammation and high free fatty acid levels
Rationale: Inflammation and metabolic dysregulation interfere with leptin signaling.
What effect does stress have on leptin levels?
A) Decreases leptin secretion
B) Has no impact on leptin
C) Increases leptin but promotes leptin resistance