Ch. 6 Flashcards Preview

Nutrition > Ch. 6 > Flashcards

Flashcards in Ch. 6 Deck (39):
1

what element makes protein different from carbohydrate and fat

nitrogen

2

what dictates the structure of a protein molecule synthesized by the body

the dna inside the nucleus of the cell

3

what is not part of an amino acid molecule

a fatty acid group

4

what part of an individual amino acid distinguishes it from other amino acids

side chain

5

the part of the protein molecule that carries nitrogen is the

amine group

6

in phenylketonuria PKU what amino acid becomes conditionally essential

tyrosine

7

polypeptides are a string of ___ amino acids

more than 10

8

a proteins ___ structure refers to the twisting spiral shaped formed by the sequence and chemical properties of its amino acid

secondary

9

a complete protein ___

contains all 9 essential amino acids

10

the process of transferring the amine group form one amino acid to another s called ___

transamination

11

two amino acids are joined together by a peptide bond to form a dipeptide. what is the by-product of this process

water

12

what food would be a source of a complete protein

chicken

13

egg whites stiffen when they are whipped. the change that occurs in the protein is called ___

denaturation

14

in what structure of the mammalian cell are proteins synthesized

ribosome

15

how do proteins differ from carbohydrates and fats

proteins contain nitrogen

16

the process through which mRNA copies genetic information from DNA and carries it to the ribosome is called

transcription

17

which of the following is the most complete protein from a plant source.

soybeans

18

of the 20 amino acids relevant to the human body, how many are considered nonessential

11

19

a ___ is a body protein that is stored in a gland and secreted to an organ to restore normal body conditions or balance

hormone

20

in the body, buffers are very important in ___

maintaining acid-base balance in the body

21

what is not a major function of protein in the body

providing energy to the body

22

what protein is fundamental to the immune system

antibodies

23

proteases are

enzymes that break down protein in the small intestine

24

conduction of nerve signals and contraction of muscles depends on the propper balance of ___

electrolytes

25

significant chemical digestion of protein begins in the ___

stomach

26

the process of combining two incomplete proteins to make a complete protein is called___

mutual supplementation

27

who would be most likely to be in positive nitrogen balance

a 29 yo woman that is 6 months pregnatn

28

to conserve body protein for its vital functions and not use it to provide energy, you should ___

eat adequate amounts of carbohydrate and fat to conserve protein for other functions

29

what is not typically a nutrient of concern for vegans

vitamin c

30

the type of vegetarian who eats vegetables, grains, fruits, eggs, and milk but excludes all other types of animal protein is called a ___

lacto-ovo vegetarian

31

the type of proten energy malnutiriton characterized by a general lack of protein in the diet is called ___

kwashiorkor

32

during the process of protein synthesis, ___ is the steop in whcih messenger rna is decoded into an amino acid sequence at the cells ribosome

translation

33

the absorption of proteins occures in the ___

small intestine

34

an acid-base imbalance can result in ___

coma and death

35

what health problem is not associated with high protein intakes

sickle cell anemia

36

what supplement would you recommend to a vegan

vitamin b12

37

well planned vegetarian diets can reduce the risk of most chronic diseases except

anemia

38

what is not associated with kwashiorkor

flat belly and abdomen

39

vegetarian diets are associated with increased consumption of ___

antioxidants