Test your basic knowledge |

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. Macronutrients consists of carbohydrates - __________ - and lipids.






2. There are ________ types of carbohydrates.






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






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






5. ______ are the structural components of cell membranes.






6. Proteins are composed of ______ ______.






7. ______________ are made of two monosaccharides combined together.






8. ______ of carbs = 1680 kJ of energy.






9. ___________ have different properties. Ex - fructose is sweeter.






10. _____________ contain many branches that make up 24-36 glucose molecules.






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






12. 100 g of fat = __________ of energy.






13. _____________ ________ _____ are the eight amino acids our body cannot make.






14. Lipids are ____ ______________ in cell membranes.






15. Triglycerides can be _____________ - or _______________.






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






17. The two types of starches are ___________ - and ______________.






18. ____________ _______ are genetic material that directs cell activity.






19. __________ = galactose + glucose






20. When two monosaccharides combine together - the chemical reaction is call _____________ _____________.






21. The two types of starches are ___________ - and ______________.






22. Starches are _______ polysaccharides - stores energy for _______.






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






24. Nucleic acids are composed of sugar ____________ - and nitrogenous bases.






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






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






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






28. _____________ _____________ _____________- coils of amino acids.






29. _____________ contain up to 1000 glucose molecules linked together.






30. __________ = glucose + glucose.






31. Nucleic acids are composed of sugar - phosphate - and _____________ bases.






32. Some examples of Monosaccharides are _________ - Galactose - Fructose.






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






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






35. Phospholipids forms a _________ _____________ _____________ _____________ that is essential for structure and function.






36. _____________ are plant polysaccharides - stores energy for plants.






37. _______ are non-polar molecules.






38. _____________ store energy in the form of fat.






39. _______________ is the primary energy source for cells.






40. ________________ usually have a molecular formula ratio of C:H:O in 1:2:1.






41. ________________ usually have a molecular formula ratio of C:H:O in 1:2:1.






42. Proteins help _____________ important substances to different areas of the body.






43. __________________________ can be changed when exposed to excess heat - radiation - or change in pH.






44. __________________ are formed by MANY monosaccharides linked together.






45. Monosaccharides are also called ________ __________.






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






48. ___________: to lose a water molecule.






49. When two monosaccharides combine together - the chemical reaction is call _____________ _____________.






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