Proteins and AAs non-ruminants

Question 1

What is protein?

Answer 1

Organic compound in food or feed that contains N

Question 2

Diff between AAs and Proteins?

Answer 2

Animal require AAs, but not protein.
Protiens are made of AAs.
Proteins not made if all the AAs requirement are not met.

Question 3

Major functions fo proteins and AAs?

Answer 3

Catalysts, messengers, structural elements, immunoproctectors, transporters, buffers.

Question 4

What % of body protein in
a) skeletal mucles
b) body organs+ skin+ blood

Answer 4

a) 40% of body protein in skeltal muscle.
b) 25% in body organs+ skin+ blood.

Question 5

Catalysts speed up the rate of rxn. How?
Hydrolases-
Isomerases-
Ligases (synthases)-
Oxidoreductases-
Transferases-

Answer 5

Hydrolases- Cleaves compounds

Isomerases- Transfer atoms in a molecule

Ligases- (synthases) join compounds

Oxidoreductases- Transerfer electrons

Transferases- Move functional groups

Question 6

What are the 5 function categories of proteins?

Answer 6

Messengers (hormones)
Strucutral elements (contractile proteins, fibrous protein), Immunoprotectors (immunoproteins, immunoglobulins ei) antibodies.). Transporters. Nutreint transporters.

Question 7

Examples fo protein transporters?

Answer 7

Albumin (FA in blood)
Transthyretin. Transferrin (bind Fe). Ceruloplasmin (bind Cu). Lipoproteins (chylomicrons, VLDL, LDL)

Question 8

How does the Na-dependant AA transporter work?
Where is AA being transported?

Answer 8

Question 9

What do the AAs in proteins do when pH is too low vs high

Answer 9

WHEN pH is too low, the AAs in proteins accept H. (which, in-turn increases pH)

When pH is too high, the AA in proteins donate H.

Question 10

What is the important of proteins and AAs on animal health and farm productivity?

Answer 10

Protein influence the protein intheir products. ANimal health, fertility. Immunoproteins, ammonia toxicity, infertility.
Eonomics of animal prod: feed costs, prod output (N in mature, methane).
Env. consequences.

Question 11

What changes between different AA’s?

Answer 11

The R group

Question 12

How do we define essential AAs?

Answer 12

The body cannot synth enough of them to meet body requirements

Question 13

How do we define non-essential AAs?

Answer 13

We can produce even if we do not get from our food. Dispensible AAs.

Question 14

What are the 10 essental AAs?

Answer 14

Venemous penesis take hold (of) all lions. Too many innocent lions (lost).

PVT TIM HALL

Phenylalanine
Valine
Threonine
Tryptophan
Isoleucine
Methanionine
Histidine
Arganine
Lysin
Leucine

Question 15

What are the 10 non-essential AAs?

Answer 15

Some gorilas are gay, all pandas can accept the gorillas

Serine
Glycine
Apartate
Glutamate
Asparagine
Proline
Cytosine
Alanine
Tyrosin
Glutamine

Question 16

WHich AAs are required for protein synth?

Answer 16

ALL

Question 17

Glycine is required in (dairy or poultry) and why?

Answer 17

Poultry.
Early stage of life. Isufficient synth of max growth before 56d of age. Uric acid synth. Serine to glycine conversion.

Question 18

What is the sparing effect?

Answer 18

Cystein can reduce the amount of dietary methioning required.

Question 19

What is phenylketonuria

Answer 19

Phenylalanine to tyrosin