WorksheetsFN43 - 3.02 Protein
Total questions: 20
Worksheet time: 20mins
Which food provides the densest amount of essential amino acids per gram of protein?
beans
beef
rice
soy
Which method of protein denaturation is the most likely to be reversible?
beating
changes in pH
freezing
heating
Having polar and nonpolar ends allows proteins to:
be macromolecules
dissolve solutes
have elastic structures
act as emulsifiers
Which action of protein molecules is caused by a temporary alteration of the protein’s shape?
Coagulation
Denaturation
Gelatinization
Hydrolyzation
Which causes denaturation of protein?
Adding lemon juice
Refrigerating
Marinating in olive oil
Sweetening with molasses
Which is an example of a food product made from texturized protein?
Soy crumbles
Hamburger
Sausage
Soy sauce
What is the function of a protein in an emulsion?
foaming agent
heat medium
stabilizer
texturizer
Which action of protein molecules is caused by a permanent change of the protein’s shape?
coagulation
denaturation
gelatinization
hydrolyzation
Which is an example of denaturation?
baked bread
melted butter
cheese curds
pickled beets
Which is an example of coagulation?
milk shake
pickle
poached egg
toast
What element does protein have that carbs and lipids do NOT have?
oxygen
carbon
hydrogen
nitrogen
Which peptide has two amino acids joined by one peptide bond?
aminopeptide
monopeptide
dipeptide
polypeptide
Which peptide has many amino acids (coiled up) and joined by many peptide bonds?
aminopeptide
monopeptide
dipeptide
polypeptide
A complete protein is found mostly in __________ sources
animal
plant
An incomplete protein is found mostly in __________ sources
animal
plant
Which type of protein is higher quality?
peptide-based protein
amino acid-based protein
animal-based protein
plant-based protein
Gluten is the protein in ___________.
rice
wheat
corn
gel
All of these CAN prevent gluten development EXCEPT:
different grains (rye or corn)
protein
sugar
liquids
Which of these is NOT an example of foam created from protein:
soda
whipped cream
frothy milk in a cappuccino
scrambled eggs
Denaturation is any change in shape of a protein without breaking the ________ bond.
amino acid
gelatin
peptide
pH
