Digestive systems- herbivores

Question 1

close relationship between digestibility of food and ___ of digestive tract?

Answer 1

length

Question 2

increase in space in digestive tract provides space to hold large quantities of ____ consumed, which gives maximum opportunity for ____ action and time for ____ to be absorbed

Answer 2

food, microbial, nutrients

Question 3

what is cellulose digested by?

Answer 3

cellulase

Question 4

basic summary of herbivore digestive system?

Answer 4

one stomach, large intetsine and caecum

Question 5

what is the caecum?

Answer 5

stores food material where bacteria are able to break down cellulose in herbivores

Question 6

as very few animals can actually digest cellulose, they have ____ digestive tracts with ____ microorganisms that digest cell walls

Answer 6

modified, symbiotic

Question 7

microbes exist in the ___ region of the gut
– stomach for ___ fermenters
– caecum for ____ fermenters

Answer 7

expanded, foregut, hindgut

Question 8

stomach in ruminants is a __- ____ organ (foregut fermenters)

Answer 8

multi-chambered

Question 9

4 chambers in multi chambered stomach in cows? which is the true stomach where gastric juices are secreted? (foregut fermenters)

Answer 9

rumen, reticulum, omasum, abomasum

abomasum

Question 10

stomach chambers contain many ___ that break down cellulose and ___ ingested food (foregut fermenters)

Answer 10

microbes, ferment

Question 11

foregut fermenters ____ their food and ____ it to further reduce its size of food particles

this is known as ___ __ ___

Answer 11

regurgitate, rechew

chewing the cud

Question 12

hindgut fermenters have a ___ single chambered __, caecum and ___ ____

Answer 12

simple, stomach, large intestine

Question 13

monogastric animals ___ digest cellulose as ____ as _____

Answer 13

cannot, efficiently, ruminants

Question 14

why do some foregut feeders eat their own faeces?

Answer 14

to gain more nutrient rich microbes