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






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






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






4. _______________ are made of all sugar molecules.






5. _____________ is when a protein changes shape permanently.






6. Monosaccharides are also called ________ __________.






7. _________________ are made of a single sugar unit.






8. The three types of Polysaccharides are starch - glycogen - and _____________.






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






10. __________ = glucose + fructose.






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






12. The 200 000 chemical reactions that takes place in the cells of your body is called _____________.






13. _____________ are found in plant cell walls.






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






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






16. ____________ creates cholesterol - estrogen and pheromones.






17. Proteins create _____________ that affect growth and serve as messengers.






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






19. _____________ store energy in the form of fat.






20. _____________ is where animals store carbohydrates.






21. The three types of Polysaccharides are starch - glycogen - and _____________.






22. __________ = glucose + glucose.






23. __________ _____ ___________ help in chemical reactions.






24. Carbohydrates are made of all ________ ____________.






25. 100 g of carbs = __________ of energy.






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






27. ______ of fat = 3870 kJ of energy.






28. Vitamins and Minerals are often found in __________ _________.






29. Carbohydrates are made of all ________ ____________.






30. _____________ look like amylopectin but only have 16-24 glucose on each branch.






31. Micronutrients consists of Vitamins and Minerals - and _________ ______.






32. _______________ are made of all sugar molecules.






33. _______________ are fast sources of energy.






34. __________ = glucose + glucose.






35. Synthesis of more complex substances from simpler ones.






36. _________________ are made of a single sugar unit.






37. ________ includes all fats and oils.






38. Lipids are ____ ______________ in cell membranes.






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






40. The three types of Polysaccharides are _____________ - glycogen - and cellulose.






41. __________ are needed for fat soluble vitamins.






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






43. Nucleic acids are composed of _______ - phosphate - and nitrogenous bases.






44. ____________: more than one sugar molecule.






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






46. _____________ molecules are not negatively or positively charged.






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






48. ______ of carbs = 1680 kJ of energy.






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






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