RD Exam Domain 1 2026 – Study Guide and Practice Questions
When you check overrun you are checking?
a. excess stock in the storeroom
b. surplus soap and rinse aids used in the dish machine
c. the weight of ice cream
d. total costs of unexpected meals served - correct answer ✔✔ the weight of ice cream
what is the process by which the water content of a vegetable is replaced by a concentrated salt
solution?
a. gelling
b. osmosis
c. diffusion
d. retrogradation - correct answer ✔✔ diffusion
which recipe ingredient should be adjusted if a cake has a crunch crust and compact moist
texture?
a. milk
b. flour
c. sugar
d. baking powder - correct answer ✔✔ sugar
why do egg whites beat more easily at room temp?
a. the pH is increased
b. the protein is denatured
c. the surface tension is lower
d. the surface tension is higher - correct answer ✔✔ the surface tension is lower
,the end products of cellular oxidation are?
a. water, carbon dioxide, energy
b. carbon, hydrogen, nitrogen
c. indigestible fiber, nitrogen
d. monosaccharides, AA, energy - correct answer ✔✔ water, carbon dioxide, energy
carbohydrates listed in order of decreasing sweetness are
a. fructose, glucose, sucrose, sorbitol
b. sucrose, glucose, fructose, sorbitol
c. fructose, sucrose, glucose, sorbitol - correct answer ✔✔ fructose, sucrose, glucose, sorbitol
the flakiness of pie crust depends on?
a. type of fat
b. oxidation of fat
c. temperature of the fat
d. oven temperature - correct answer ✔✔ type of fat
if the sole source of protein is gelatin, growth is inhibited because?
a. gelatin has no tryptophan and is low in methionine and lysine
b. gelatin has no methionine and is low in tryptophan
c. gelatin has no lysine or methionine, and is low in tryptophan
d. gelatin has no arginine - correct answer ✔✔ gelatin has no tryptophan and is low in
methionine and lysine
fat produces more calories than carbohydrate because?
,a. fat has more carbon and hydrogen in relation to oxygen
b. fat has less carbon and hydrogen in relation to oxygen
c. fat is a larger molecule
d. fat is a smaller molecule - correct answer ✔✔ fat has more carbon and hydrogen in relation
to oxygen
the best laboratory value to use in assessing iron status is>
a. hemoglobin
b. hematocrit
c. ferritin
d. serum iron - correct answer ✔✔ ferretin
where Is lactose absorbed?
a. small intestine
b. stomach
c. pancreas
d. liver - correct answer ✔✔ small intestine
the colon functions in the absorption of"
a. amino acids, fatty acids
b. unsaturated fatty acids, electrolyets
c. water, salts, vitamin K, thiamin, riboflavin
d. glucose and FA - correct answer ✔✔ water, salts, vitamin K, thiamin, riboflavin
how much fluid is lost through insensible losses?
a. .5 liters
, b. 1 liter
c. 2 liters
d. 3-4 liters - correct answer ✔✔ 1 liter
an AA that cannot be produced by the body is?
a. alanine
b. glycine
c. tyrosine
d. trytophan - correct answer ✔✔ tryptophan
the following is an irreversible reaction
a. prussic acid into lactic acid
b/ pyretic acid into acetyl CoA
c. glucose-6-phophate into glycogen
d. glucose-6-phosphate into pyruvate - correct answer ✔✔ pyruvic acid into acetyl CoA
Riboflavin, thiamin and niacin are all involved in the:
a. metabolism of carbohydrate.
b. metabolism of fat
c. metabolism of protein
d. production of AA - correct answer ✔✔ metabolism of carbohydrate
An increased plasma pyruvate level is an indication of.
a. iron deficiency
b. riboflavin deficiency
c. excess carbohydrate ingestion
When you check overrun you are checking?
a. excess stock in the storeroom
b. surplus soap and rinse aids used in the dish machine
c. the weight of ice cream
d. total costs of unexpected meals served - correct answer ✔✔ the weight of ice cream
what is the process by which the water content of a vegetable is replaced by a concentrated salt
solution?
a. gelling
b. osmosis
c. diffusion
d. retrogradation - correct answer ✔✔ diffusion
which recipe ingredient should be adjusted if a cake has a crunch crust and compact moist
texture?
a. milk
b. flour
c. sugar
d. baking powder - correct answer ✔✔ sugar
why do egg whites beat more easily at room temp?
a. the pH is increased
b. the protein is denatured
c. the surface tension is lower
d. the surface tension is higher - correct answer ✔✔ the surface tension is lower
,the end products of cellular oxidation are?
a. water, carbon dioxide, energy
b. carbon, hydrogen, nitrogen
c. indigestible fiber, nitrogen
d. monosaccharides, AA, energy - correct answer ✔✔ water, carbon dioxide, energy
carbohydrates listed in order of decreasing sweetness are
a. fructose, glucose, sucrose, sorbitol
b. sucrose, glucose, fructose, sorbitol
c. fructose, sucrose, glucose, sorbitol - correct answer ✔✔ fructose, sucrose, glucose, sorbitol
the flakiness of pie crust depends on?
a. type of fat
b. oxidation of fat
c. temperature of the fat
d. oven temperature - correct answer ✔✔ type of fat
if the sole source of protein is gelatin, growth is inhibited because?
a. gelatin has no tryptophan and is low in methionine and lysine
b. gelatin has no methionine and is low in tryptophan
c. gelatin has no lysine or methionine, and is low in tryptophan
d. gelatin has no arginine - correct answer ✔✔ gelatin has no tryptophan and is low in
methionine and lysine
fat produces more calories than carbohydrate because?
,a. fat has more carbon and hydrogen in relation to oxygen
b. fat has less carbon and hydrogen in relation to oxygen
c. fat is a larger molecule
d. fat is a smaller molecule - correct answer ✔✔ fat has more carbon and hydrogen in relation
to oxygen
the best laboratory value to use in assessing iron status is>
a. hemoglobin
b. hematocrit
c. ferritin
d. serum iron - correct answer ✔✔ ferretin
where Is lactose absorbed?
a. small intestine
b. stomach
c. pancreas
d. liver - correct answer ✔✔ small intestine
the colon functions in the absorption of"
a. amino acids, fatty acids
b. unsaturated fatty acids, electrolyets
c. water, salts, vitamin K, thiamin, riboflavin
d. glucose and FA - correct answer ✔✔ water, salts, vitamin K, thiamin, riboflavin
how much fluid is lost through insensible losses?
a. .5 liters
, b. 1 liter
c. 2 liters
d. 3-4 liters - correct answer ✔✔ 1 liter
an AA that cannot be produced by the body is?
a. alanine
b. glycine
c. tyrosine
d. trytophan - correct answer ✔✔ tryptophan
the following is an irreversible reaction
a. prussic acid into lactic acid
b/ pyretic acid into acetyl CoA
c. glucose-6-phophate into glycogen
d. glucose-6-phosphate into pyruvate - correct answer ✔✔ pyruvic acid into acetyl CoA
Riboflavin, thiamin and niacin are all involved in the:
a. metabolism of carbohydrate.
b. metabolism of fat
c. metabolism of protein
d. production of AA - correct answer ✔✔ metabolism of carbohydrate
An increased plasma pyruvate level is an indication of.
a. iron deficiency
b. riboflavin deficiency
c. excess carbohydrate ingestion
