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






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






3. ____________ creates cholesterol - estrogen and pheromones.






4. __________ = glucose + glucose.






5. _______________ is the primary energy source for cells.






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






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






8. Triglycerides can be _____________ - or _______________.






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






10. All _____________ have different proteins (amino acids)






11. Lipids are _____________ (does not dissolve in water).






12. __________________ are formed by MANY monosaccharides linked together.






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






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






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






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






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






18. _____________ is when a protein changes shape temporarily.






19. _______ are non-polar molecules.






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






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






22. The four kinds of lipids are _______________ - _______________ - ________ - and ___________.






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






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






25. Triglycerides can be _____________ - or _______________.






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






27. There are _____ types of protein structure.






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






29. Lipids are used to make _____________.






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






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






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






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






34. 100 g of carbs = __________ of energy.






35. There are ________ types of carbohydrates.






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






37. The three types of Polysaccharides are _____________ - _____________ - and _____________.






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






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






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






41. ______ of fat = 3870 kJ of energy.






42. _______ are non-polar molecules.






43. 100 g of carbs = __________ of energy.






44. ______________ are made of two monosaccharides combined together.






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






46. _______________ are made of all sugar molecules.






47. ______ of fat = 3870 kJ of energy.






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






49. _____________ molecules are not negatively or positively charged.






50. Lipids are ____ ______________ in cell membranes.