animal nutrition Flashcards
week 6 topic 8 chapter 41 (16 cards)
what are autotrophs
organisms that make their own food
producer
ex plants
heterophs
organism that eat other organism as food
consumers
cows
what consist of a complete digestive system?
two openings
mouth and anus where ingestion and digestion occurs in two different areas
what consists of a incomplete digestive system?
one opening
where ingestion and digestion occurs
what happens to excess intake of amino acids?
- storage of protein
- covert into fat and store
- oxidate and excrete nitrogen
waste
what happens to excess intake of vitamins?
-some ability for storage (lipid soluble )
- most of the excess is excreted
what happens to excess intake of chemical energy?
store as body fat
what are suspension feeders?
filter small organism
what are deposit feeders?
swallow sediments
ex: crabs, snails, earthworms
what are fluid feeders?
suck or lap up fluids
ex: bats, hummingbirds, mosquitoes
what are mass feeders?
seize or manipulate chunks of food
ex: humans, dogs, snakes, deer
what is the purpose of multiple foldings in the digestive tract?
the many folds, villi, and microvilli, are there to increase the surface area (for nutrient absorption)
how is the digestion of carbohydrates occur?
salivary amylases (mouth)
pancreatic amylase (S.I)
= monosaccharides into the blood stream
how is the digestion of lipids occur?
lingual lipase (mouth)
gastric lipase (stomach)
pancreatic lipase (S.I)
=bloodstream
how is the digestion of protiens occur?
pepsin (stomach)
pancreatic proteases (S.I)
= amino acid diffusion to bloodstream
how does peristalsis moves chyme through the D.I tract?
involuntary waves of muscle contractions pushes food along the d.i tract moving it one direction
