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






2. Proteins __________ ligaments - tendons - and skin.






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






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






5. __________ are the structural components of the cell.






6. _______________ is the primary energy source for cells.






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






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






9. 100 g of carbs = __________ of energy.






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






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






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






13. __________ are needed for fat soluble vitamins.






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






15. All _____________ have different proteins (amino acids)






16. ______ are the structural components of cell membranes.






17. Triglycerides can be _____________ - or _______________.






18. _____________ are found in plant cell walls.






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






20. Carbohydrates are structural material for ______ ______.






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






22. All _____________ have different proteins (amino acids)






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






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






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






26. ________ are used to maintain a body temperature.






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






28. _______________ are fast sources of energy.






29. __________ = glucose + glucose.






30. Amino acids are made of ________ _____ - _____________ - ___________ _______ - and _____________.






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






32. _______ are non-polar molecules.






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






34. _______________ are made of all sugar molecules.






35. _____________ are made of building blocks called amino acids. Found in meat - eggs - fish - nuts - beans - dairy.






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






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






38. ______ are the structural components of cell membranes.






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






40. There are ______ kinds of lipids.






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






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






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






44. __________ _____ ___________ help in chemical reactions.






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






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






47. __________ = galactose + glucose






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






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






50. ______ are energy storage compounds.