[bio] hds Flashcards
1
Q
what is digestion
A
process that breaks down complex food substances into simple, soluble molecules that are small enough to be absorbed into the body cells
2
Q
where does food digestion take place?
A
alimentary canal
3
Q
what is alimentary canal?
A
a long, musculae tract which extends from the mouth to anus
4
Q
what is phyiscal digestion
A
mechanical breakdown of food into smaller particles to provide a large surface area to volume ratio for faster rate of chemical digestion by digestive enzymes
5
Q
what is chemicsl digestion
A
breakdown of large food molecules into small soluble molecules catalysed by digestive enzymes through hydrolytic reactions
