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






2. ____________ creates cholesterol - estrogen and pheromones.






3. __________ = galactose + glucose






4. _____________ is when a protein changes shape temporarily.






5. _____________ molecules are not negatively or positively charged.






6. _________________ are made of a single sugar unit.






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






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






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






10. _______________ are fast sources of energy.






11. 100 g of fat = __________ of energy.






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






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






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






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






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






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






18. 100 g of carbs = __________ of energy.






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






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






21. __________ are needed for fat soluble vitamins.






22. There are ________ types of carbohydrates.






23. Disaccharides are made of _____ __________________ combined together.






24. Carbohydrates are made of all ________ ____________.






25. Micronutrients consists of __________ _____ _________ - and Nucleic Acids.






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






27. Lipids __________ - and ____________ organs.






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






29. Lipids are used to make _____________.






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






31. Lipids are used to make _____________.






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






33. __________ = galactose + glucose






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






35. _____________ are found in plant cell walls.






36. _______________ is the primary energy source for cells.






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






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






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






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






41. The opposite of dehydration synthesis is _____________.






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






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






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






45. _______ are non-polar molecules.






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






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






48. __________ = glucose + fructose.






49. _____________ is where animals store carbohydrates.






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