chapter 22 nutrition and digestion

Question 1

digestion

Answer 1

the mechanical and chemical breakdown of food into molecules small enough for body to absorb

Question 2

Autotrophs

Answer 2

producers that make their own food like plants

Question 3

heterotrophs

Answer 3

depend on autotrophs for nourishment

Question 4

what are the 4 stages of food processing

Answer 4

ingestion, digestion, absorption, elimination

Question 5

2 types of digestion

Answer 5

mechanical and chemical

Question 6

chemical digestion

Answer 6

breakdown of foos polymers into their monomers

Question 7

digestion compartments function and how many ?

Answer 7

keeps digestive enzymes separated from the body ; 2 types sac and tubes

Question 8

what does the stomach have ?

Answer 8

gastric juice and acid chyme

Question 9

gastric juice

Answer 9

hydrochloric acid, mucus, pepsinogens, and gastrin

Question 10

acid chyme

Answer 10

has partially digested food with acid, water and mucus that passes from stomach to small intestine

Question 11

pancreatic juice

Answer 11

bicarbonates ( neutralizes acid chyme ) and hydrolyses ( breakdown polymers )

Question 12

liver

Answer 12

bile ( emulsifies fats )

Question 13

where is bile stored ?

Answer 13

gall bladder

Question 14

cards and fats are used for ?

Answer 14

energy

Question 15

excess fat

Answer 15

stored in the adipose tissue for later use

Question 16

c backbones are used to?

Answer 16

make structural components of cells and molcules like cholesterol

Question 17

what are proteins used for ?

Answer 17

make structural proteins, enzymes, nitrogen containing molecules like nucleotides

Question 18

how many essential amino acid do we need

Answer 18

8