Test your basic knowledge |

Subject : science
Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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. Increase width (girth) of stems and roots - has vascular cambium and cork cambium






2. Inter-cellular links for long distance transportation of nutrients






3. Convert light energy to chemical energy






4. Produces megagametophyte that stays with sporophyte plant (produces egg)






5. Position reactants so they dont require as much activation energy






6. When xylem is blocked by air bubbles as a result of gasses clotting together after freeze-thaw cycles or extreme water-tension






7. CO2 - H2O - NADH - (ATP)






8. Stores water and waste and ultimately determines the shape of the cell






9. Allows plants to combat sessileness and control growth and allocate resources effectively to best compete/survive in their environment via meristems






10. A chemical reaction involving the transfer of one or more electrons from one reactant to another; also called oxidation-reduction reaction.






11. A thin membrane around the cytoplasm of a cell - gatekeeper of the cell






12. Made of acetyl groups - structure energy and storage






13. Diploid - produces spores through meiosis






14. Biological fuel. captured and stored through photosynthesis - extracted by mitochondria






15. Addition of H2O to break apart polymer






16. Sorting and shipping of molecules






17. General purpose cell. thin primary cell wall. most common






18. ***lets them be sexual?






19. Part of leaf that is loose for easy gas diffusion






20. Mosses have no vascular tissue. Ferns reproduce with spores. Conifers reproduce with seeds. Flowering plants have flowers.






21. Glycolysis - krebs cycle - electron transport chain






22. Molecule manufacturing where ribosomes are - and then products are sent to the Golgi Apparatus






23. Made of cellulose - structure and inter-cellular transportation of nutrients via plasmodesmata.






24. Part of calvin cycle where ATP and NADH are created






25. The OEC splits water and transfers the electrons to the P680 or cholorphyll reaction center. In the meantime - the photosystem is absorbing light energy and funnels the energy into the p680 - from which - through a series of redox reactions - the kin






26. Number of ATP molecules from 1 glucose in cellular respiration (total produced -- 38 - total yield -- 36)






27. Between cells






28. Special pointy leaves made to protect the stem






29. Reactions of photosynthesis in which energy from ATP and NADPH is used to build high-energy compounds such as sugars. 1)reduction - 2)carbon fixation - 3)regeneration






30. Outer layer - barrier to animals and pathogens






31. Photosynthesis and storage






32. The part of the leaf for protection and gas exchange






33. Second stage of cellular respiration - in which pyruvic acid is broken down into carbon dioxide in a series of energy-extracting reactions






34. Make long thin stems called 'runners' that grow above ground and aid in asexual reproduction






35. Large compound formed from combinations of many monomers






36. Proteins - lipids - carbohydrates - and nucleic acid






37. Spore that gives rise to independent bisexual gametophyte that produces both egg and sperm (mosses and ferns)






38. Root hairs capture water and minerals and move them through (symplasticly) or between (apoplasticly) cells until the endodermis filters it into the vascular tissue






39. Command center






40. A series of proteins in which the high-energy electrons from the Krebs cycle are used to convert ADP into ATP by redox reactions






41. Web of protein strands throughout the cell that allows organelles and molecules to move via motor proteins






42. Part of leaf for photosynthesis






43. Free energy plants get out of the reactant's potential energy






44. Lengthen roots and stem - produce xylem and phloem - ground tissue - and epidermis






45. Comes in twos - sieve tubes (no nucleus) and companion cells (nourish sieve tubes) - transport sugars and nutrients






46. Organic molecules (materials) - enzymes (workers) - DNA (blueprint)






47. Attach themselves to other plants and suck nutrients out of the air (fog - humidity)






48. Produces secondary vascular tissue






49. Change root structure entirely - make little bubble roots to help acquire nitrogen and phosphorous in exchange for sugars






50. Made of amino acids - structure (ex. cytoskeleton) - produce enzymes