Test your basic knowledge |

Subject : science
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. Ability crucial to plant structure and processing of energy - allows change to be made to help survival






2. First step in releasing the energy of glucose - in which a molecule of glucose is broken into two molecules of pyruvic acid






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






4. Alternate between sporophyte and gametophyte in the plant life cycle






5. A simple compound whose molecules can join together to form polymers






6. Provides flexible support - like in celery






7. Rigid support - mostly found in bark. two types -- fibers and sclereids






8. Consists of dead hollowed out cells - come in tracheids (long) or vessels (short) - move water in plant






9. 1. Prokaryotes are approximately the same size as their organelle counterparts. 2. Double membrane 3. Chloroplasts and mitochondria have their own unique circular DNA






10. Made of acetyl groups - structure energy and storage






11. Glycolysis - krebs cycle - electron transport chain






12. Waxy protection of leaf to protect from pathogens and let water run off it






13. Command center






14. The atmosphere is 21% oxygen - so that inherently means that over time plants have taken in more CO2 than they produce. this must be the case - otherwise we would all be dead.

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15. Proteins - lipids - carbohydrates - and nucleic acid






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






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






18. Outer layer - barrier to animals and pathogens






19. Special pointy leaves made to protect the stem






20. Have underground stems that store starch (ex. potato)






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






22. Sorting and shipping of molecules






23. Anchor the plant - collect water and nutrients from the ground






24. Provide oxygen - food - medicine - fuel - shelter - paper products - beauty






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






26. CO2 (air) + H20 (soil) + light energy (sun) ? CH20 (carbs) + 02 (oxygen)






27. Haploid - produces gametes through mitosis






28. Diploid - produces spores through meiosis






29. Produce vessels in spring and tracheids in winter (ex. oak tree)






30. Production of two spore types (gymnosperms and angiosperms)






31. Synthesize proteins based on mRNA code






32. Attached directly by the base






33. Fuel - paper - construction materials - furniture - latex - resins - syrup






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






35. Removal of H2O to link monomer and polymers






36. Root apical meristem (quiescent center - or zone of cell division) - zone of elongation - zone of maturation






37. Position leaves for max photosynthesis - provide resource transportation and storage - escape herbivores






38. Through cells






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






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






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






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






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






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






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






46. Part of calvin cycle where ATP and NADH are turned into G3P (sugar)






47. 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






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






49. Part of calvin cycle where five G3Ps are recycled - processed - and linked to form more materials for carbon fixation






50. Increase width (girth) of stems and roots - has vascular cambium and cork cambium