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






2. _______________ are made of all sugar molecules.






3. _______________ are fast sources of energy.






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






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






6. ______ are the structural components of cell membranes.






7. ____________: more than one sugar molecule.






8. Triglycerides can be _____________ - or _______________.






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






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






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






12. Proteins are composed of ______ ______.






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






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






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






16. __________ = glucose + fructose.






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






18. ______ are the structural components of cell membranes.






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






20. _____________ is when a protein changes shape temporarily.






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






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






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






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






25. ________ are used to maintain a body temperature.






26. __________ are needed for fat soluble vitamins.






27. Monosaccharides are also called ________ __________.






28. ___________: to lose a water molecule.






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






30. _____________ is when a protein changes shape temporarily.






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






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






33. _______________ is the primary energy source for cells.






34. _____________ molecules are not negatively or positively charged.






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






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






37. Proteins help keep our cells and muscles in _________.






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






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






40. ______________ are made of two monosaccharides combined together.






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






42. __________ are needed for fat soluble vitamins.






43. Proteins are composed of ______ ______.






44. ______ of fat = 3870 kJ of energy.






45. Lipids are ____ ______________ in cell membranes.






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






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






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






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






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







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