Portage Learning BIOD 121 Essentials in Nutrition Final Exam

Portage Learning University BIOD 121 Case
Study Module 3_ Essentials in Nutrition

1). Food

 Ans: provides calories for energy


2). Nutrients

 Ans: (1) promote growth and development;
(2) maintain tissue, cells, and bone;
(3) fuel the body for physical and metabolic work;
(4) regulate body processes
over 45 essential nutrients


3). Hunger

 Ans: internal drive/sensation - growling, pain


4). Appetite

 Ans: external drive to eat - pleasant feeling, eat when not hungry


5). Role of hypothalamus in hunger

 Ans: detects drop in nutrients in circulation - hunger center
rise - satiety center
monitors hormonal signals and nervous system from entire body


6). Gi tract

 Ans: mouth, esophagus, stomach, small intestine, large intestine, rectum, and anus


7). Hormones that increase hunger

 Ans: Ghrelin, Neuropeptide Y (NPY), Endorphins




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, 8). Hormones that decrease hunger

 Ans: Leptin, serotonin, cholecystokinin (CCK)


9). Four external forces for eating habits

 Ans: sensory
cognitive
environment
health status


10). Sensory forces

 Ans: flavor, texture, and appearance


11). Cognitive forces

 Ans: habits, comfort, advertising, social, nutrition


12). Environmental forces

 Ans: economics, lifestyle, culture, location, climate


13). Carbohydrate

 Ans: macronutrient
organic
supply energy
sources: grains, vegetables, fruits, dairy products, and legumes


14). Protein

 Ans: macronutrient
organic
energy, regulate processes, provide structure
sources: meats, dairy products, legumes, vegetables, and grains


15). Lipids

 Ans: macronutrient
organic



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