Energy
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calorie
amount of heat required to raise the temperature of one gram of water from 14.5 to 15.5 degrees C
cellulose chains are connected by _________ _________ ________
beta-acetal linkage
beta acetal=
microbial digestion
alpha acetal=
mammalian digestion
Ruminants digest fiber ______, we digest fiber ______
first, last
amino acids
Consist of C,H,O, and N and sometimes S Found in all living cells Methionine and lysine
cell compisition
-30% chemicals, 70% H2O
chemical edifiication
-carboxyol group- COOH -Amine group- NH2 -centreal carbon atom -single H pn central carbon -side chain
amino acid bonding
-link AAs -carboxyl group links to amine group H2O is additional product -occrus at the ribosome -genetics break the peptide bond
essential amino acids
-phenylalanine, valine, threonine, tryptophan, isoleucine, methionine, histidine, adenine, lysine, leucine (PVT TIM HALL) -must be supplied in the diet -animals do not store proteins or amino acid
excess protein is excreted how
-excess protein is excereted through rine as urea -urea is transported to kidney for filtering and excretion -urea is made in the urea cycle/ornithine cycle in the liver
protein is expensive
-excess protein in diet is hard on liver and kidneys -expensive urine -excess excretion of N leads to N pollution
non essential
can be made sufficiently in body