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






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






3. ______ are energy storage compounds.






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






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






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






7. _____________ are found in plant cell walls.






8. Phospholipids have a _______ head - and a _____________ tail.






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






10. There are _____ types of protein structure.






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






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






13. _______ are non-polar molecules.






14. _______________ are made of all sugar molecules.






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






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






17. __________ = galactose + glucose






18. 100 g of fat = __________ of energy.






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






20. Carbohydrates are structural material for ______ ______.






21. __________ are the structural components of the cell.






22. ____________ creates cholesterol - estrogen and pheromones.






23. There are ________ types of carbohydrates.






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






25. _______________ is the primary energy source for cells.






26. __________________ are formed by MANY monosaccharides linked together.






27. _____________ is when a protein changes shape permanently.






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






29. ________________ consists of Vitamins and Minerals - and Nucleic Acids.






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






31. ____________: more than one sugar molecule.






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






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






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






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






36. Carbohydrates are made of all ________ ____________.






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






38. Proteins are composed of ______ ______.






39. _____________ molecules are not negatively or positively charged.






40. There are ______ kinds of lipids.






41. _____________ _____________ _____________- coils of amino acids.






42. Proteins help form antibodies for _____________.






43. There are ________ types of carbohydrates.






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






45. __________________ are formed by MANY monosaccharides linked together.






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






47. _____________ is when a protein changes shape temporarily.






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






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






50. __________ = glucose + fructose.