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






2. _______________ is the primary energy source for cells.






3. Monosaccharides are also called ________ __________.






4. There are ______ kinds of lipids.






5. Lipids are ____ ______________ in cell membranes.






6. __________________ are formed by MANY monosaccharides linked together.






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






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






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






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






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






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






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






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






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






16. The bond formed between two amino acids are called a __________ ______.






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






18. ____________ creates cholesterol - estrogen and pheromones.






19. Lipids __________ - and ____________ organs.






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






21. Synthesis of more complex substances from simpler ones.






22. Proteins are composed of ______ ______.






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






24. Triglycerides can be _____________ - or _______________.






25. __________ = glucose + fructose.






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






27. _____________ is when a protein changes shape permanently.






28. 100 g of fat = __________ of energy.






29. __________________ are formed by MANY monosaccharides linked together.






30. 100 g of carbs = __________ of energy.






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






32. _______________ are fast sources of energy.






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






34. ______________ are made of two monosaccharides combined together.






35. There are _____ types of protein structure.






36. ___________: to lose a water molecule.






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






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






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






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






41. ________________ usually have a molecular formula ratio of C:H:O in 1:2:1.






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






43. There are ______ kinds of lipids.






44. ______ of fat = 3870 kJ of energy.






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






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






47. All _____________ have different proteins (amino acids)






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






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






50. All _____________ have different proteins (amino acids)