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Biology: Essential Nutrients

Subjects : science, biology
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Carbohydrates are structural material for ______ ______.






2. Nucleic acids are composed of _______ - ____________ - and _____________ bases.






3. _______ are non-polar molecules.






4. Proteins __________ ligaments - tendons - and skin.






5. Micronutrients consists of __________ _____ _________ - and Nucleic Acids.






6. Carbohydrates are made of all ________ ____________.






7. _________________ are made of a single sugar unit.






8. There are __________ different kinds of Amino acids. __________ can be made in our bodies - while ________ is acquired through eating food.






9. Carbohydrates are made of all ________ ____________.






10. ______ of carbs = 1680 kJ of energy.






11. ________ includes all fats and oils.






12. There are ______ kinds of lipids.






13. ________ includes all fats and oils.






14. _____________ is where animals store carbohydrates.






15. Lipids __________ - and ____________ organs.






16. Proteins are made when many many amino acids combine together through _____________ _____________.






17. Phospholipids have a _______ head - and a _____________ tail.






18. Phospholipds have a _____________ head - and a _______________ tail.






19. _____________ are found in plant cell walls.






20. ____________: when molecules have the same chemical formula but different structures.






21. ________________ consists of Vitamins and Minerals - and Nucleic Acids.






22. _____________ is when a protein changes shape permanently.






23. Disaccharides are made of _____ __________________ combined together.






24. _______________ are made of glycerol and two fatty acids and a phosphate group.






25. ______ of carbs = 1680 kJ of energy.






26. _______________ can be found in potatoes - bread - corn - rice - fruit - etc -.






27. __________________ are formed by MANY monosaccharides linked together.






28. ______ are the structural components of cell membranes.






29. _______________ can have one single sugar molecule or can be polymers.






30. Breakdown of more complex substances into simpler ones with release of energy.






31. _______________ ______________: double bonds exist between carbons - they are unstable and easy to break down. plant sources






32. Proteins create ___________ that bring reactants together faster or slower.






33. There are _____ types of protein structure.






34. _______________ is the primary energy source for cells.






35. Phospholipds have a _____________ head - and a _______________ tail.






36. Some examples of Monosaccharides are _________ - ___________ - __________.






37. Macronutrients consists of carbohydrates - __________ - and lipids.






38. ______________ are acquired from plants. (Photosynthesis -> glucose)






39. The three types of Polysaccharides are starch - _____________ - and cellulose.






40. _____________ molecules are not negatively or positively charged.






41. Synthesis of more complex substances from simpler ones.






42. All lipids are made of two structural units: ___________ - and _______ ______.






43. ______ of fat = 3870 kJ of energy.






44. ______________ _______________ : single bonds exist between carbons - they are stable and hard to break down so they will remain in our body longer. animal sources






45. There are ________ types of carbohydrates.






46. ______________ _______________ : single bonds exist between carbons - they are stable and hard to break down so they will remain in our body longer. animal sources






47. ___________ are important for long-term storage of energy.






48. _______________ are made of glycerol and two fatty acids and a phosphate group.






49. Proteins help keep our cells and muscles in _________.






50. The bond formed between two amino acids are called a __________ ______.







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