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






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






3. ____________: more than one sugar molecule.






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






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






6. ______ of carbs = 1680 kJ of energy.






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






8. _____________ store energy in the form of fat.






9. Carbohydrates are structural material for ______ ______.






10. ________ are used to maintain a body temperature.






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






12. __________ are needed for fat soluble vitamins.






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






14. Macronutrients consists of _______________ - _________ - and _______.






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






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






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






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






19. Some examples of Monosaccharides are Glucose - ___________ - Fructose.






20. _______________ are fast sources of energy.






21. __________________ are formed by MANY monosaccharides linked together.






22. __________ _____ ___________ help in chemical reactions.






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






24. _______ are non-polar molecules.






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






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






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






28. All _____________ have different proteins (amino acids)






29. _____________ molecules are not negatively or positively charged.






30. Lipids __________ - and ____________ organs.






31. Every living thing requires a constant supply of __________ ___ ____________.






32. Monosaccharides are also called ________ __________.






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






34. _____________ contain up to 1000-6000 glucose molecules linked together.






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






36. There are ________ types of carbohydrates.






37. ______________ are made of two monosaccharides combined together.






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






39. Proteins are composed of ______ ______.






40. ____________: more than one sugar molecule.






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






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






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






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






45. ______ of fat = 3870 kJ of energy.






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






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






48. Lipids are ____ ______________ in cell membranes.






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






50. ___________: combining two things together to make something new.