Module 4 - Protein Flashcards Preview

LifeSci 2N03 > Module 4 - Protein > Flashcards

Flashcards in Module 4 - Protein Deck (20):
1

what is one of the most popular supplements consumed by Canadians?

protein powder

2

dipeptides

two amino acids joined

3

tripeptides

3 amino acids joined

4

polypeptide

chain of 4 or more amino acids

5

indispensable amino acid

essential, not synthesized within the body, must be consumed in diet

6

dispensable amino acid

can by synthesized within the body

7

how many amino acids?

20

8

An amino acid that can be made in the body under normal circumstances is called:

dispensable

9

what two factors influence protein quality?

1 digestibility
2 amino acid composition

10

where are proteins digested?

in stomach with HCL and pepsin
in small intestine with proteases and peptidases

11

where are amino acids absorbed?

in the duodenum and jejunum

12

Protein digestion begins in the...

stomach

13

what interferes with protein digestibility?

tannis in legumes or grains interferes with amino acid absorption

14

regarding protein, the more processed the food...

the less digestible the protein

15

In the study of protein nutrition, which of the following terms describes the amount of amino acids absorbed from a given amount of protein consumed?

digestibility

16

The digestibility of soy isolate is higher than whole soybean because:

there is less trypsin inhibitor in soy isolate

17

PDCAAS

Protein Digestibility Corrected Amino Acid Score; method for evaluating protein quality regarding digestibility and indispensable amino acid content ranging from 0-100% or 0-1.0

18

Which of the following is true regarding PDCAAS?

This score is influenced by amino acid content and digestibility of the protein in the food

19

Protein AMDR

10-35% of kcal

20

protein RDA

0.8g/body mass/day