AP PSYCHOLOGY

Detailed explanation-1: -Leptin is a 16-kDa protein hormone, which is secreted by adipocytes. Plasma leptin concentration increases in proportion to body fat mass, and regulate food intake and energy expenditure to maintain body fat stores.

Detailed explanation-2: -Leptin is a hormone released from fat cells in adipose tissue. Leptin signals to the brain, in particular to an area called the hypothalamus. Leptin does not affect food intake from meal to meal but, instead, acts to alter food intake and control energy expenditure over the long term.

Detailed explanation-3: -Leptin is a hormone your adipose tissue (body fat) releases that helps your body maintain your normal weight on a long-term basis. It does this by regulating hunger by providing the sensation of satiety (feeling full).

Detailed explanation-4: -Glucagon increases blood sugar levels, whereas insulin decreases blood sugar levels.

Detailed explanation-5: -Leptin decreases your appetite, while ghrelin increases it. Ghrelin is made in your stomach and signals your brain when you’re hungry. Your fat cells produce leptin. Leptin lets your brain know when you have enough energy stored and feel “full.”