Download RD Exam Domain 1 Test Questions with Answers latest 2025 and more Exams Nutrition in PDF only on Docsity!
RD Exam Domain 1 Test Questions
with Answers latest 2025
When you check overrun, you are checking: a. excess stock in the storeroom b. surplus soap and rinse aids used in the dishmachine c. the weight of ice cream d. total costs of unexpected meals served ✔️ 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 ✔️ diffusion
Which recipe ingredient should be adjusted if a cake has a crunchy crust and compact moist texture? a. milk b. flour c. sugar d. baking powder ✔️ sugar
Why do egg whites beat more easily at room temperature? a. the pH is increased b. the protein is denatured c. the surface tension is lower d. the surface tension is higher ✔️ the surface tension is lower
Which pigment does not change color in an acid or an alkaline solution? a. anthocyanin b. chlorophyll c. carotene d. flavones ✔️ carotene
The end products of cellular oxidation are: a. water, carbon dioxide, energy b. carbon, hydrogen, nitrogen c. indigestible fiber, nitrogen
d. monosaccharides, amino acids, energy ✔️ 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 d. sorbitol, fructose, sucrose, glucose ✔️ 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 ✔️ type of fat
A group of rates being fed gelatin as the sole protein source are not growing well. What is the likely reason? 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 ✔️ gelatin has no tryptophan and is low in methionine and lysine
A #10 can holds how many cups of product? a. 10 b. 13 c. 12 d. 5 ✔️ 13
If you replace half and half with whipping cream in ice cream, the effects on the ice crystals will be: a. an increase in size because there is less fat b. a decrease in size because there is more fat c. no change d. an increase in size because there is more fat ✔️ a decrease in size because there is more fat
Fat produces more calories than carbohydrates 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
Acidic chyme becomes neutralized in the duodenum by: a. mixing with bicarbonate and fluids b. mixing with alkaline intestinal enzymes c. mixing with sodium and potassium d. mixing with bile ✔️ mixing with bicarbonate and fluids
The colon functions in the absorption of: a. amino acids, fatty acids b. unsaturated fatty acids, electrolytes c. water, salts, vitamin K, thiamin, robflavin d. glucose and fatty acids ✔️ water, salts, vitamin K, thiamin, robflavin
To prevent frozen gravy from separating when thawed: a. reheat slowly and stir constantly b. thaw it before heating and stir constantly c. prepare it with modified starch d. cook it longer before freezing to stabilize the gravy ✔️ prepare it with modified starch
How much fluid is lost through insensible losses? a. 0.5 liters b. 1 liter c. 2 liters d. 3 - 4 liters ✔️ 1 liter
An amino acid that cannot be produced by the body is: a. alanine b. glycine c. tyrosine d. tryptophan ✔️ tryptophan
The following is an irreversible reaction: a. pyruvic acid into lactic acid b. pyruvic acid into acetyl CoA c. glucose-6-phosphate into glycogen d. glucose-6-phosphate into pyruvate ✔️ 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 amino acids ✔️ metabolism of carbohydrate
An increased plasma pyruvate level is an indication of: a. iron deficiency b. riboflavin deficiency c. excess carbohydrate ingestion d. thiamin deficiency ✔️ thiamin deficiency
Which of the following stabilizes an egg white foam? a. an acid b. water c. flour d. milk ✔️ an acid
Winterized oil is: a. cloudy when refrigerated b. clear when refrigerated c. cloudy when stored for long periods of time d. clear only if kept at room temperature ✔️ clear when refrigerated
What may cause EKG abnormalities? a. high serum potassium level b. low serum potassium level c. low serum sodium level d. high serum sodium level ✔️ high serum potassium level
In the fed state, the brain uses which nutrient as a source of energy? a. fatty acid b. lactic acid c. glucose d. ketone bodies ✔️ glucose
In starvation, the brain uses which nutrient as an energy source? a. fatty acid b. lactic acid c. glucose d. ketone bodies
a. a nutrient that can be converted into a vitamin b. a vitamin that can be converted into a nutrient c. the endogenous form of a vitamin d. a man-made copy of a vitamin ✔️ a nutrient that can be converted into a vitamin
The formula for producing the active form of vitamin D is: a. vitamin D3 converting into 7-dehydrocholesterol b. ergosterol converting into calciferol c. cholesterol converting into calciferol d. 7-dehydrocholesterol converting into cholecalciferol ✔️ 7-dehydrocholesterol converting into cholecalciferol
In the human, vitamin K is affected by: a. anticoagulants and antibodies b. iodine c. water-soluble vitamins d. gluten ✔️ anticoagulants and antibodies
Which hormone regulates calcium levels? a. insulin b. thyroid c. parathyroid c. aldosterone ✔️ parathyroid
Pyridoxine acts as a coenzyme in: a. iron transfer b. deamination and transamination c. fat transfer through the lymphatic system d. osmotic pressure of body fluids ✔️ deamination and transamination
Which of the following are synthesized by intestinal bacteria? a. biotin, pantothenic acid, vitamin K b. vitamin E, vitamin K, biotin c. pyridoxine, vitamin E d. ascorbic acid, pyridoxine, vitamin K ✔️ biotin, pantothenic acid, vitamin K
Ascorbic acid aids in healing. Which of the following applies? a. collagen -> hydroxyproline b. proline -> hydroxyproline -> collagen c. hydroxyproline -> proline -> collagen
d. hydroxyproline -> collagen ✔️ proline -> hydroxyproline -> collagen
Biotin is considered a coenzyme in the synthesis of: a. protein b. carbohydrate c. glycogen d. fatty acids ✔️ fatty acids
Food iron is in the _____ form. a. ferric b. ferritin c. transferrin d. ferrous ✔️ ferric
Food iron is reduced in the stomach to the more absorbable form of: a. ferric b. ferrous c. transferrin d. ferritin ✔️ ferrous
Which would aid the absorption of an iron supplement? a. cow's milk, eggs b. orange juice, hamburger c. milk, eggs, cheese d, dates, eggs ✔️ orange juice, hamburger
Bile is produced in the ______ and stored in the ______. a. liver, gallbladder b. gallbladder, liver c. liver, liver d. gallbladder, gallbladder ✔️ liver, gallbladder
Cholecystokinin causes: a. contraction of the gallbladder b. peristalsis c. secretion of pancreatic juice d. contraction of the liver ✔️ contraction of the gallbladder
c. thiamin, niacin, riboflavin, pantothentic acid, NAD d. pantothentic acid, oxaloacetate, citric acid ✔️ thiamin, niacin, riboflavin, pantothentic acid, NAD
Which vitamin acts as a coenzyme in transamination? a. pyridoxine b. thiamin c. riboflavin d. vitamin B ✔️ pyridoxine
Glucocorticoids are: a. thyroid hormones b. pituitary hormones c. adrenal hormones d. parathyroid hormones ✔️ adrenal hormones
Glucocorticoids: a. convert glucose into protein b. convert fatty acids into glucose c. convert glucose into fat d. convert protein into glucose ✔️ convert protein into glucose
Fats enter the blood as ______ and leave the liver as _______. a. phospholipids, chylomicrons b. chylomicrons, phospholipids c. chylomicrons, lipoproteins d. liproproteins, chylomicrons ✔️ chylomicrons, lipoproteins
The oxidation of fatty acids forms: a. acetyl CoA b. pyruvic acid c. lactic acid d. oxaloacetate ✔️ acetyl CoA
Pantothenic acid, thiamin, riboflavin and niacin are all involved in: a. converting pyruvic into acetyl CoA b. converting tyrosine into phenylalanine c. converting glycogen into glucose d. converting lactic acid into oxaloacetate ✔️ converting pyruvic into acetyl CoA
Which of the following can be reversed with vitamin A? a. xerophthalmia b. nyctalopia c. Wilson's disease d. homocysteinuria ✔️ nyctalopia
Fresh meat contamination comes mainly from: a. botulism b. staphylococcus c. clostridium d. salmonella ✔️ salmonella
Which amino acids must be present in parenteral solution? a. valine, leucine, glycine, alanine b. tryptophan, phenylalanine, threonine, isoleucine c. phenylalanine, methionine, arginine, tyrosine d. lysine, glutamic acid, alanine, glycine ✔️ tryptophan, phenylalanine, threonine, isoleucine
Iron absorption is enhanced by: a. acidic chyme in the duodenum b. the alkalinity of the duodenum c. oxalates and phyates d. the abscence of ascorbic acid ✔️ acidic chyme in the duodenum
Which of the following inhibits gluconeogenesis? a. glycogen b. insulin c. catecholamines d. glucocorticoids ✔️ insulin
Which has the lowest cholesterol content? a. peanut butter and crackers b. yogurt with fruit c. chocolate cake d. roast beef sandwich ✔️ peanut butter and crackers
What is the difference between cake flour and bread flour? a. cake flour has less gluten, weaker gluten, less protein
✔️ long chained fatty acids
When substituting buttermilk for whole milk in pastry: a. decrease the liquid b. increase the baking soda c. increase the amount of butter d. increase the amount of butter ✔️ increase the baking soda
Ground meat will spoil faster than sliced meat because: a. it has more enzyme activity b. it has more fat c. more surface ares is exposed d. it has less fat ✔️ more surface ares is exposed
Evaporated milk has: a. slightly more than half of the water removed b. added sugar c. a fat content of 3 - 6% d. lactose removed ✔️ slightly more than half of the water removed
Ketones are most associated with: a. complex carbohydrates b. simple sugars c. fats d. amino acids ✔️ fats
Which best describes sorbitol and glucose? a. sorbitol is sweeter than glucose b. they each provide 7 calories per gram c. sorbitol is absorbed more slowly d. they convert into fructose ✔️ sorbitol is absorbed more slowly
What causes egg yolk color to change? a. alteration in the feed provided b. storage length c. shell color d. storage conditions ✔️ alteration in the feed provided
Which data is needed to convert weight into volume?
a. mass b. temperature c. specific gravity d. pH ✔️ specific gravity
The tatrness of fruits and vegetables is due to: a. flavones b. chlorophyll c. anthoxanthins d. tannins ✔️ tannins
When a white sauce tastes starchy and grainy, the likely cause is: a. too much starch b. improper proportions of ingredients c. starch was added before the fat melted d. uncooked flour ✔️ uncooked flour
The scientific process by which water makes lettuce crisp is: a. osmotic pressure of water-filled vacuoles b. diffusion c. transamination d. water active diffusion ✔️ osmotic pressure of water-filled vacuoles
Four hours after eating you develop nausea, diarrhea, but have no fever. The cause may be: a. staphylococcus aureus b. clostridium botulinum c. clostridium perfringens d. streptococcus ✔️ staphylococcus aureus
Which hormone greatly influences the BMR? a. the endrocrine hormone b. thyroxine c. the growth hormone d. insulin ✔️ thyroxine
If linoleic acid replaces saturated fat in the diet: a. total cholesterol including HDL decreases b. HDL increases
Which cooking method would best convert collagen to gelatin in bottom round roast? a. grilling it to medium rare b. braising c. broiling d. searing ✔️ braising
Which method of bread-making is not as dependent on the length of time the dough sits to rise? a. straight dough method b. sponge dough method c continuous method c. prime bake method ✔️ continuous method
Which nutrient is added for flour enrichment? a. vitamin A b. iodine c. fluorine d. iron ✔️ iron
What does the term "USDA graded" on meat tell the consumer? a. it assures wholesomeness b. it was free of disease at the time of slaughter c. the mat is for for human consumption d. it defines quality ✔️ it defines quality
A cake with a fallen center may be the result of: a. too little fat b. too little sugar c. excess sugar and excess fat d. too little baking powder ✔️ excess sugar and excess fat
Which of the following has the least amount of saturated fat? a. 2% milk b. half and half c. non-dairy creamer d. evaporated milk ✔️ evaporated milk
Coarse texture in a cake is due to:
a. too little baking powder b. over-mixing c. too much baking powder or sugar d. oven temperature too high ✔️ too much baking powder or sugar
Nitrogen equilibrium is associated with: a. a 25 year old pregnant female b. a 25 year old male c. a 15 year old girl d. a 4 year old child ✔️ a 25 year old male
Children's diets are found to be low in iron due to emphasis on: a. vegetables b. milk c. fruits d. cereals ✔️ milk
Which mineral is involved in blood clotting? a. calcium b. phosphorus c. iron d. selenium ✔️ calcium
Which of the following is true regarding flour? a. all-purpose flour is made from soft wheat b. all-purpose flour has more protein than bread flour c. cake flour has the least and the weakest gluten d. cake flour has less starch than bread flour ✔️ cake flour has the least and the weakest gluten
The main function of glycolysis is to provide: a. pyruvate for the TCA cycle b. lactic acid for energy use by muscles c. muscle and liver glycogen d. a substrate for the Cori cycle ✔️ pyruvate for the TCA cycle
Food service employees should wash their hands for at least: a. 30 seconds b. 25 seconds d. 20 seconds
d. hyperglycemia ✔️ hypertension
Cabbage should be cooked: a. covered b. in a small amount of water c. in a large quantity of water d. covered in a small amount of water ✔️ in a large quantity of water
To decrease sodium intake, substitute: a. carrots for celery b. unsalted margarine for regular margarine c. diet margarine for regular margarine d. carrots for pepper ✔️ unsalted margarine for regular margarine
Apples stored in a controlled environment would: a. ripen quickly b. last one to two years c. have extended life and improved marketing quality d. only be used as processed fruit ✔️ have extended life and improved marketing quality
The following oils can be winterized: a. corn, soy, cottonseed b. olive, corn, soy c. cottonseed, olive d. olive, corn ✔️ corn, soy, cottonseed
Which would you give to a person who is mildly hypokalemic? a. 1 cup blueberries b. 1 cup cranberries c. 1/2 cup applesauce d. 1 piece cantaloupe ✔️ 1 piece cantaloupe
A serum sodium level of 150 mEq/L is a sign of: a. very high sodium intake b. very low sodium intake c. hyponatremia d. hypernatremia ✔️ hypernatremia
To increase potassium intake, consume a snack of: a. cheese and crackers, plums, cranberry juice b. a bagel, milk and an apple c. a grilled cheese and tomato sandwich and strawberries d. tuna salad, a wheat roll, and cola ✔️ a grilled cheese and tomato sandwich and strawberries
If protein intake is doubled, which nutrient needs to be increased? a. pyridoxine b. folic acid c. niacin d. vitamin C ✔️ pyridoxine
Illness due to Bacillus cereus is due to contaminated: a. rice products and starchy foods b. fruits c. dairy products d. eggs ✔️ rice products and starchy foods
The Cori Cycle converts: a. glucose into galactose b. lactate into pyruvate c. lactic acid into glycogen d. glycogen into glucose ✔️ lactate into pyruvate
Fats high in monounsaturated fatty acids include: a. olive and canola b. sunflower and corn c. coconut and palm d. soy and peanut ✔️ olive and canola
Fats high in polyunsaturated fatty acids include: a. olive and canola b. sunflower and corn c. coconut and palm d. soy and peanut ✔️ sunflower and corn
Green beans cooked in tomato sauce turn _____ due to _____. a. bight green; chlorophyllin b. olive green; phenophytin
