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 opposite of dehydration synthesis is _____________.






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






3. _____________ is when a protein changes shape permanently.






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






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






6. _____________ is where animals store carbohydrates.






7. Lipids are ____ ______________ in cell membranes.






8. _______________ is the primary energy source for cells.






9. __________ _____ ___________ help in chemical reactions.






10. Proteins help _____________ important substances to different areas of the body.






11. There are ______ kinds of lipids.






12. _____________ are found in plant cell walls.






13. Nucleic acids are composed of sugar - phosphate - and _____________ bases.






14. ______________ are made of two monosaccharides combined together.






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






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






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






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






19. Lipids __________ - and ____________ organs.






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






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






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






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






24. _________________ are made of a single sugar unit.






25. 100 g of carbs = __________ of energy.






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






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






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






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






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






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






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






33. ___________: to lose a water molecule.






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






35. ________ are used to maintain a body temperature.






36. __________________ are formed by MANY monosaccharides linked together.






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






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






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






40. _____________ molecules are not negatively or positively charged.






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






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






43. ____________: more than one sugar molecule.






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






45. _______ are non-polar molecules.






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






47. The opposite of dehydration synthesis is _____________.






48. Disaccharides are made of _____ __________________ combined together.






49. There are ________ types of carbohydrates.






50. Carbohydrates are structural material for ______ ______.