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






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






3. Macronutrients consists of carbohydrates - proteins - and _______.






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






5. _______ are non-polar molecules.






6. _______________ are made of all sugar molecules.






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






8. _____________ are plant polysaccharides - stores energy for plants.






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






10. _______ are non-polar molecules.






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






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






13. ________ are used to maintain a body temperature.






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






15. Some examples of Monosaccharides are _________ - Galactose - Fructose.






16. _______________ is the primary energy source for cells.






17. _______________ are made of all sugar molecules.






18. _____________ store energy in the form of fat.






19. __________ = glucose + fructose.






20. Lipids are used to make _____________.






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






22. Synthesis of more complex substances from simpler ones.






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






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






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






26. _____________ _____________ _____________- coils of amino acids.






27. __________ = glucose + fructose.






28. __________ = glucose + glucose.






29. Proteins help _____________ important substances to different areas of the body.






30. _____________ is when a protein changes shape permanently.






31. __________ = galactose + glucose






32. Phospholipids forms a _________ _____________ _____________ _____________ that is essential for structure and function.






33. Macronutrients consists of ______________ - proteins - and lipids.






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






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






36. _____________ is where animals store carbohydrates.






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






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






39. ______ of carbs = 1680 kJ of energy.






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






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






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






43. _____________ are found in plant cell walls.






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






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






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






47. __________ = galactose + glucose






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






49. ____________: more than one sugar molecule.






50. 100 g of carbs = __________ of energy.