Foods and Nutrition 1021 Lecture Notes - Lecture 3: Peristalsis, Overeating, Airport Security

• School: Western University
• Department: Foods and Nutrition
• Course: Foods and Nutrition 1021
• Professor: Jennifer Broxterman

Document Summary

Dire(cid:272)t the (cid:373)aki(cid:374)g of ea(cid:272)h (cid:271)od(cid:455) (cid:272)ell"s (cid:373)a(cid:272)hi(cid:374)er(cid:455), i(cid:374)(cid:272)ludi(cid:374)g e(cid:374)z(cid:455)(cid:373)es (cid:894)protei(cid:374)s facilitating chemical reactions) Provide instructions for all structural components needed to survive: body"s cells. Need nutrients (energy, oxygen, water, essential nutrients) Diet at varying rates; replenish themselves every 3, 10, 120 days or once every few years (i. e. rbc every 3-4 months) Each cell contains a complete set of genes; different ones are active in different types of cells. Although all the cells have the machinery of everything, they only do what they are specialled in. Our cells replace themselves frequently to help us keeping us not getting sick: specialized cells. Grouped together to form tissues & organs; organs work together in body systems: fat cells, red blood cells. Specialize to store fat in the adipose tissue. Indicator of vitamin/mineral deficiencies: figure 3. 1 of text a self-contained living entity. Important for efficient circulation to cells (cid:862)a (cid:272)ell(cid:863) (cid:894)sho(cid:449)(cid:374) o(cid:374) (cid:374)e(cid:454)t slide(cid:895) Replace water lost each day; avoid dehydration.