Human digestive system Flashcards
1
Q
Why do humans need food?
A
Humans need food to maintain their life processes such as: muscles, locomotion,nerve condition, reproduction and growth
Food provides building material for cell repair, cell growth and the manufacture of enzymes and hormones
2
Q
Enzyme
A
A protein that speeds up and controls the chemical reactions such as digestion and photosynthesis
3
Q
Hormone
A
A substance produced by one gland or organ of the body that travels through the bloodstream to affect the tissues and organs
