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Nutrient - Quiz
Contributed by: Bingham
  • 1. What is the primary definition of a nutrient?
A) A toxic substance that harms organisms.
B) A substance used by an organism to survive, grow and reproduce.
C) A chemical created by organisms to destroy their environment.
D) A substance used only by plants for photosynthesis.
  • 2. Which groups require dietary nutrient intake?
A) Only animals and humans.
B) Only plants and fungi.
C) Animals, plants, fungi, and protists.
D) Only multicellular organisms.
  • 3. What is an example of a non-cellular structure created by excreted nutrients?
A) Cell membranes.
B) Feathers.
C) Mitochondria.
D) Cytoplasm.
  • 4. Which substances are converted into energy, releasing water and carbon dioxide as end-products?
A) Only oxygen and carbon dioxide.
B) Carbohydrates, lipids, and proteins.
C) Minerals and vitamins.
D) Only iron and zinc.
  • 5. Which nutrient is required by all organisms?
A) Ethanol.
B) Water.
C) Iron.
D) Vinegar.
  • 6. What do plants absorb through their leaves?
A) Proteins.
B) Carbon dioxide and oxygen.
C) Minerals.
D) Fats.
  • 7. How do fungi obtain their nutrients?
A) By synthesizing them from sunlight.
B) By producing their own energy from inorganic chemicals.
C) From dead or living organic matter.
D) By absorbing minerals through roots.
  • 8. Which species requires ascorbic acid as an essential nutrient?
A) Humans.
B) Most plants.
C) Bacteria.
D) Most other animals.
  • 9. What is the primary difference between organic and inorganic nutrients?
A) Organic nutrients are always liquids.
B) Inorganic nutrients are required in larger amounts.
C) Inorganic nutrients provide more energy.
D) Organic nutrients contain carbon.
  • 10. Which of the following is considered an inorganic nutrient?
A) Iron.
B) Protein.
C) Fat.
D) Sugar.
  • 11. What are macronutrients primarily used for?
A) Synthesizing vitamins.
B) Preventing all diseases.
C) Generating energy or tissue growth and repair.
D) Nerve conduction only.
  • 12. How are micronutrients distinct from macronutrients?
A) They are only used by plants.
B) They contain carbon, whereas macronutrients do not.
C) They are needed in smaller amounts.
D) They provide more energy.
  • 13. What is the result of inadequate consumption of essential nutrients?
A) A deficiency state.
B) Increased growth.
C) Higher survival rates.
D) Better reproduction.
  • 14. What are phytochemicals?
A) Minerals absorbed through the roots of plants.
B) Artificial additives in processed food.
C) Types of vitamins found in animals.
D) Compounds in edible plants with unknown health effects.
  • 15. What is true about polyphenols?
A) They are essential for human growth.
B) They are a class of non-nutrient phytochemicals.
C) They are a type of protein.
D) They are easily synthesized by the human body.
  • 16. Which set of elements represents the ones consumed in the largest quantities by humans?
A) CHNOPS
B) Trace minerals
C) Vitamin complexes
D) Essential enzymes
  • 17. Which of these is classified as a monosaccharide?
A) Sucrose
B) Starch
C) Cellulose
D) Glucose
  • 18. What are proteins primarily composed of?
A) Fatty acids
B) Amino acids
C) Glycerin
D) Monosaccharides
  • 19. Which of the following is an example of a disaccharide?
A) Glucose
B) Sucrose
C) Glycogen
D) Starch
  • 20. Why are some amino acids termed 'essential'?
A) They contain double bonds
B) They provide the most calories
C) The body cannot manufacture them
D) They are types of trace minerals
  • 21. Which mineral is considered a macronutrient because it is required in large quantities?
A) Trace mineral
B) Ultracare mineral
C) Calcium
D) Oxygen
  • 22. Which of these is a polysaccharide?
A) Starch
B) Amino acid
C) Fructose
D) Lactose
  • 23. What connects amino acids in proteins?
A) Peptide bonds
B) Glycerin molecules
C) Double bonds
D) Sugar units
  • 24. Which group of nutrients is often described as trace or ultratrace?
A) Macronutrients
B) Micronutrients
C) Proteins
D) Carbohydrates
  • 25. What are dietary minerals native to?
A) Earth
B) Synthesized compounds
C) Animal cells
D) Water
  • 26. How many vitamins are considered essential for humans?
A) Thirteen
B) Fourteen
C) Two
D) Nine
  • 27. Which of the following is an essential fatty acid for humans?
A) Alpha-linolenic acid
B) Methionine
C) Histidine
D) Phenylalanine
  • 28. How many minerals are considered essential for humans?
A) Thirteen
B) Fourteen
C) Nine
D) Two
  • 29. Which amino acid is listed as essential for humans?
A) Sodium
B) Alpha-linolenic acid
C) Valine
D) Glucose
  • 30. How many amino acids cannot be endogenously synthesized by humans?
A) Thirteen
B) Twenty
C) Nine
D) Fourteen
  • 31. What type of nutrient is linoleic acid?
A) Mineral
B) Vitamin
C) Essential amino acid
D) Essential fatty acid
  • 32. What term describes nutrients that are indispensable in certain developmental or pathological states?
A) Conditionally essential
B) Essential vitamins
C) Micro-minerals
D) Naturally synthesized
  • 33. Which amino acid is essential for humans?
A) Sodium
B) Iron
C) Water
D) Leucine
  • 34. How many essential fatty acids are known for humans?
A) Two
B) Fourteen
C) Thirteen
D) Nine
  • 35. What are the related forms of vitamins called?
A) Cofactors
B) Isomers
C) Vitamers
D) Isotopes
  • 36. Which of the following functions is commonly performed by vitamins?
A) Structural tissue building
B) Hormonal secretion
C) Enzymatic cofactors
D) Primary energy source
  • 37. Which vitamin requirement is considered conditional based on UV light exposure?
A) Vitamin A
B) Vitamin K
C) Vitamin C
D) Vitamin D
  • 38. Which of the following is an example of a vitamin group that includes multiple molecules?
A) Vitamin E
B) Vitamin C
C) Vitamin D
D) Vitamin K
  • 39. How is the human requirement for nitrogen addressed?
A) Through carbohydrate intake
B) Through mineral supplements
C) Through protein requirements
D) Through vitamin synthesis
  • 40. Which sulfur-containing amino acid has a recommended intake?
A) Methionine
B) Alanine
C) Valine
D) Glycine
  • 41. Which of the following is considered an essential trace element for humans?
A) Boron
B) Carbon
C) Silicon
D) Potassium
  • 42. Which mineral is a necessary component of vitamin B12?
A) Copper
B) Iron
C) Zinc
D) Cobalt
  • 43. Which mineral is listed as an essential trace element for humans?
A) Nitrogen
B) Molybdenum
C) Sulfur
D) Oxygen
  • 44. Which element is considered essential for some plants and animals but is not confirmed as essential for humans?
A) Iodine
B) Zinc
C) Magnesium
D) Boron
  • 45. Which of the following is classified as a conditionally essential nutrient?
A) Vitamin C
B) Taurine
C) Ethanol
D) Niacin
  • 46. How much food energy is supplied by one gram of ethanol?
A) Approximately 40 kilojoules
B) Approximately 5 kilojoules
C) Approximately 29 kilojoules
D) Approximately 10 kilojoules
  • 47. What must be established for a compound to officially qualify for nutrient status if its properties are poorly defined?
A) A Dietary Reference Intake level
B) A specific caloric value
C) An antioxidant benefit
D) A natural source in all edible plants
  • 48. What is the result of excess consumption of a nutrient that causes harm to an organism?
A) Nutrient toxicity
B) Dietary inadequacy
C) Pathological requirement
D) Metabolic deficiency
  • 49. What happens if a person supplements with magnesium above the tolerable upper limit?
A) It may cause muscle damage
B) It may cause flushing of the face
C) It may cause diarrhea
D) It may cause liver damage
  • 50. What does RDA stand for in the context of U.S. nutrient guidelines?
A) Required Daily Amounts
B) Reference Dietary Accumulations
C) Recommended Dietary Allowances
D) Recommended Daily Allowances
  • 51. How many important nutrients are there for plants?
A) 15
B) 19
C) 17
D) 21
  • 52. Which of the following is considered a macronutrient?
A) Iron
B) Magnesium
C) Boron
D) Zinc
  • 53. How many elements are classified as elemental macronutrients for all organisms?
A) Six
B) Seven
C) Five
D) Eight
  • 54. Which element is listed as a micronutrient?
A) Nickel
B) Calcium
C) Magnesium
D) Nitrogen
  • 55. Which of the following is an inorganic source of nutrients?
A) Carbohydrates
B) Acids
C) Phosphates
D) Lipids
  • 56. What is the chemical symbol for potassium?
A) P
B) K
C) Ca
D) Po
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