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. _____________ _____________ _____________- a single chain of sequenced amino acids.






2. ______________ are made of two monosaccharides combined together.






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






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






5. __________ = glucose + fructose.






6. _____________ are made of one glycerol and three fatty acid chains.






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






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






9. _____________ _____________ _____________- the are groups interact to change coil structure.






10. _______________ consists of carbohydrates - proteins - and lipids.






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






12. __________ _____ ___________ help in chemical reactions.






13. Proteins are composed of ______ ______.






14. Proteins are composed of ______ ______.






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






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






17. Triglycerides can be _____________ - or _______________.






18. Proteins help form antibodies for _____________.






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






20. Macronutrients consists of ______________ - proteins - and lipids.






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






22. There are ________ types of carbohydrates.






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






24. _____________ molecules are not negatively or positively charged.






25. _____________ _____________ _____________- the are groups interact to change coil structure.






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






27. _______________ are made of all sugar molecules.






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






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






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






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






32. _____________ _____________ _____________- coils of amino acids.






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






34. ______ are the structural components of cell membranes.






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






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






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






38. ________ are very stable insoluble molecules. Used for waterproofing/ protection. Ex. Candles etc -.






39. ________ are used to maintain a body temperature.






40. _________________ are made of a single sugar unit.






41. ___________: to lose a water molecule.






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






43. _______________ are made of all sugar molecules.






44. The chemical reaction for glycerol and fatty acids combining together to form triglyceride is also called _______________ _____________.






45. Disaccharides are made of _____ __________________ combined together.






46. Proteins __________ ligaments - tendons - and skin.






47. ____________: more than one sugar molecule.






48. Lipids are ____ ______________ in cell membranes.






49. Lipids are ____ ______________ in cell membranes.






50. Lipids __________ - and ____________ organs.