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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. _______________ consists of carbohydrates - proteins - and lipids.






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






4. The three types of Polysaccharides are _____________ - glycogen - and cellulose.






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






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






7. _______ are non-polar molecules.






8. All _____________ have different proteins (amino acids)






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






10. _______________ are fast sources of energy.






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






12. Lipids are used to make _____________.






13. ______ are energy storage compounds.






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






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






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






17. _____________ store energy in the form of fat.






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






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






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






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






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






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






24. __________________ are formed by MANY monosaccharides linked together.






25. __________ are the structural components of the cell.






26. Lipids are ____ ______________ in cell membranes.






27. _____________ _____________ _____________- Two or more different tertiary structures interact forming large structure for a single protein.






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






29. ___________: to lose a water molecule.






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






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






32. There are ______ kinds of lipids.






33. Proteins help form antibodies for _____________.






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






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






36. __________ = glucose + fructose.






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






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






39. __________ _____ ___________ help in chemical reactions.






40. Triglycerides can be _____________ - or _______________.






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






42. Some examples of Monosaccharides are Glucose - Galactose - __________.






43. ______ of fat = 3870 kJ of energy.






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






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






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






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






48. _____________ _____________ _____________- coils of amino acids.






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






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







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