Describe three significant biological factors influencing hunger.?
What will be an ideal response?
ANSWER:
- Hypothalamus: Regulates hunger.
- Ghrelin: This hormone, produced in the stomach, sends strong hunger signals to the brain.
- Senses: The smell and sight of food can stimulate appetite.
- Stomach: When your stomach is empty, it contracts, sending hunger signals to the brain. The stomach also measures the nutrient content of the food we eat and uses this information to regulate hunger, producing satiety signals.
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- Liver: Regulates hunger by monitoring the balance of glucose and glycogen.
- Small intestine: Produces CCK that signals fullness.
- ?
- Cholecystokinin (CCK): A peptide produced in the small intestine, CCK travels to the brain to reduce hunger.
Leptin: Leptin is produced in fat cells. It tells the brain that the body’s fat reserves are suf?cient by signaling the hypothalamus and muf?ing some appetite signals.
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