Table of contents
- 1. Introduction to Biology2h 42m
- 2. Chemistry3h 40m
- 3. Water1h 26m
- 4. Biomolecules2h 23m
- 5. Cell Components2h 26m
- 6. The Membrane2h 31m
- 7. Energy and Metabolism2h 0m
- 8. Respiration2h 40m
- 9. Photosynthesis2h 49m
- 10. Cell Signaling59m
- 11. Cell Division2h 47m
- 12. Meiosis2h 0m
- 13. Mendelian Genetics4h 44m
- Introduction to Mendel's Experiments7m
- Genotype vs. Phenotype17m
- Punnett Squares13m
- Mendel's Experiments26m
- Mendel's Laws18m
- Monohybrid Crosses19m
- Test Crosses14m
- Dihybrid Crosses20m
- Punnett Square Probability26m
- Incomplete Dominance vs. Codominance20m
- Epistasis7m
- Non-Mendelian Genetics12m
- Pedigrees6m
- Autosomal Inheritance21m
- Sex-Linked Inheritance43m
- X-Inactivation9m
- 14. DNA Synthesis2h 27m
- 15. Gene Expression3h 20m
- 16. Regulation of Expression3h 31m
- Introduction to Regulation of Gene Expression13m
- Prokaryotic Gene Regulation via Operons27m
- The Lac Operon21m
- Glucose's Impact on Lac Operon25m
- The Trp Operon20m
- Review of the Lac Operon & Trp Operon11m
- Introduction to Eukaryotic Gene Regulation9m
- Eukaryotic Chromatin Modifications16m
- Eukaryotic Transcriptional Control22m
- Eukaryotic Post-Transcriptional Regulation28m
- Eukaryotic Post-Translational Regulation13m
- 17. Viruses37m
- 18. Biotechnology2h 58m
- 19. Genomics17m
- 20. Development1h 5m
- 21. Evolution3h 1m
- 22. Evolution of Populations3h 52m
- 23. Speciation1h 37m
- 24. History of Life on Earth2h 6m
- 25. Phylogeny2h 31m
- 26. Prokaryotes4h 59m
- 27. Protists1h 12m
- 28. Plants1h 22m
- 29. Fungi36m
- 30. Overview of Animals34m
- 31. Invertebrates1h 2m
- 32. Vertebrates50m
- 33. Plant Anatomy1h 3m
- 34. Vascular Plant Transport1h 2m
- 35. Soil37m
- 36. Plant Reproduction47m
- 37. Plant Sensation and Response1h 9m
- 38. Animal Form and Function1h 19m
- 39. Digestive System1h 10m
- 40. Circulatory System1h 57m
- 41. Immune System1h 12m
- 42. Osmoregulation and Excretion50m
- 43. Endocrine System1h 4m
- 44. Animal Reproduction1h 2m
- 45. Nervous System1h 55m
- 46. Sensory Systems46m
- 47. Muscle Systems23m
- 48. Ecology3h 11m
- Introduction to Ecology20m
- Biogeography14m
- Earth's Climate Patterns50m
- Introduction to Terrestrial Biomes10m
- Terrestrial Biomes: Near Equator13m
- Terrestrial Biomes: Temperate Regions10m
- Terrestrial Biomes: Northern Regions15m
- Introduction to Aquatic Biomes27m
- Freshwater Aquatic Biomes14m
- Marine Aquatic Biomes13m
- 49. Animal Behavior28m
- 50. Population Ecology3h 41m
- Introduction to Population Ecology28m
- Population Sampling Methods23m
- Life History12m
- Population Demography17m
- Factors Limiting Population Growth14m
- Introduction to Population Growth Models22m
- Linear Population Growth6m
- Exponential Population Growth29m
- Logistic Population Growth32m
- r/K Selection10m
- The Human Population22m
- 51. Community Ecology2h 46m
- Introduction to Community Ecology2m
- Introduction to Community Interactions9m
- Community Interactions: Competition (-/-)38m
- Community Interactions: Exploitation (+/-)23m
- Community Interactions: Mutualism (+/+) & Commensalism (+/0)9m
- Community Structure35m
- Community Dynamics26m
- Geographic Impact on Communities21m
- 52. Ecosystems2h 36m
- 53. Conservation Biology24m
4. Biomolecules
Lipids
Problem 3`
Textbook Question
Macronutrients ________.
a. Include carbohydrates and vitamins.
b. Should make up a small percentage of a healthful diet.
c. Are essential in minute amounts to help enzymes function.
d. Include carbohydrates, fats, and proteins.
e. Are synthesized by cells and not necessary to obtain from the diet.

1
Step 1: Understand the term 'macronutrients.' Macronutrients are nutrients required in large amounts by the body to provide energy and support bodily functions. These include carbohydrates, fats, and proteins.
Step 2: Analyze the options provided in the question. Option (a) includes vitamins, which are not macronutrients but rather micronutrients. Option (b) states that macronutrients should make up a small percentage of the diet, which is incorrect as they are required in large amounts. Option (c) refers to micronutrients, which are needed in minute amounts to help enzymes function. Option (e) incorrectly states that macronutrients are synthesized by cells and not necessary to obtain from the diet.
Step 3: Focus on option (d), which states that macronutrients include carbohydrates, fats, and proteins. This aligns with the definition of macronutrients as they are the primary sources of energy and are required in large amounts.
Step 4: Eliminate the incorrect options based on the analysis above. Options (a), (b), (c), and (e) do not accurately describe macronutrients.
Step 5: Conclude that the correct answer is option (d), as it correctly identifies carbohydrates, fats, and proteins as macronutrients.

This video solution was recommended by our tutors as helpful for the problem above
Video duration:
49sPlay a video:
Was this helpful?
Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Macronutrients
Macronutrients are the nutrients required by the body in large amounts to provide energy and support growth and metabolism. They primarily include carbohydrates, proteins, and fats, which serve as the main sources of energy and are essential for various bodily functions. Unlike micronutrients, which are needed in smaller quantities, macronutrients are crucial for overall health and must be consumed in appropriate proportions.
Recommended video:
Guided course
Soil Nutrients
Role of Carbohydrates, Fats, and Proteins
Carbohydrates are the body's primary energy source, while fats provide a concentrated source of energy and are vital for cell structure and hormone production. Proteins are essential for building and repairing tissues, as well as for the production of enzymes and hormones. Understanding the distinct roles of these macronutrients helps in formulating a balanced diet that meets the body's energy and nutritional needs.
Recommended video:
Guided course
Carbohydrates
Dietary Recommendations
Dietary recommendations suggest that macronutrients should make up a significant portion of daily caloric intake, with specific ratios varying based on individual health goals and activity levels. For a healthful diet, it is important to balance the intake of carbohydrates, fats, and proteins to ensure adequate energy supply and nutrient diversity. This balance supports optimal health and reduces the risk of chronic diseases.
Recommended video:
Guided course
Post-Translational Modification
Related Videos
Related Practice