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. _______________ are fast sources of energy.






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






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






4. _____________ contain many branches that make up 24-36 glucose molecules.






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






6. ___________: to lose a water molecule.






7. All _____________ have different proteins (amino acids)






8. ______________ are made of two monosaccharides combined together.






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






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






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






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






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






14. There are ______ kinds of lipids.






15. Proteins __________ ligaments - tendons - and skin.






16. Lipids are used to make _____________.






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






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






19. ______________ are made of two monosaccharides combined together.






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






21. The opposite of dehydration synthesis is _____________.






22. ______ are energy storage compounds.






23. Proteins __________ ligaments - tendons - and skin.






24. __________ are the structural components of the cell.






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






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






27. ______________ are acquired from plants. (Photosynthesis -> glucose)






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






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






30. _______________ are fast sources of energy.






31. _______________ is the primary energy source for cells.






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






33. Carbohydrates are made of all ________ ____________.






34. _____________ are found in plant cell walls.






35. The three types of Polysaccharides are starch - glycogen - and _____________.






36. Lipids are ____ ______________ in cell membranes.






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






38. __________ = galactose + glucose






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






40. _________________ are made of a single sugar unit.






41. Micronutrients consists of Vitamins and Minerals - and _________ ______.






42. ____________ creates cholesterol - estrogen and pheromones.






43. The opposite of dehydration synthesis is _____________.






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






45. _______________ are made of all sugar molecules.






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






47. _____________ is when a protein changes shape temporarily.






48. There are _____ types of protein structure.






49. __________ = glucose + fructose.






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