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. More effective in stable environments - focus on fast growth without competition






2. Indeterminate growth - assisted reproduction - protection (chemical deterence - spikes - internal resource transport)






3. Practice of employing management strategies to allow healthy return of timber harvest. (ex. leave mature trees - plant seedlings)






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






5. Diploid - produces spores through meiosis






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






7. Organic compounds not directly involved in normal growth of organism. Facilitates reproduction and defense against predators.






8. Mycorrhizas and the bubble shaped guys






9. CO2 (exhale) + H20 + ATP (energy) ? CH20 (food) + 02 (air)






10. Cytoskeleton -- motor proteins carry molecules and organelles across microtubule tracks






11. Removal of H2O to link monomer and polymers






12. Attached directly by the base






13. Increase population fitness in unstable environments






14. Brings leaf water and nutrients - exports sugars






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






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






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






18. Glycolysis - krebs cycle - electron transport chain






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






20. Through cells






21. 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






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






23. Special leaves that act as arms that pull up or support the stem






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






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






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






27. Proteins - lipids - carbohydrates - and nucleic acid






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






29. 1) taking wood from an ecosystem also takes nutrients 2) seedling establishment isn't that easy -- lots of competition and herbivory to overcome in building a new forest






30. Xylem and phloem - used for transportation of water and sugars in plant






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






32. Cell walls of cellulose - photosynthesis - indeterminate growth - asexual and sexual reproduction






33. Flower to play the role of the gametophyte - producing two different spore types






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






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






36. Haploid - produces gametes through mitosis






37. Synthesize proteins based on mRNA code






38. ***lets them be sexual?






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






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






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






43. Special pointy leaves made to protect the stem






44. Produces secondary vascular tissue






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






46. Produce vessels year round (ex. northern Arizona aspen)






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






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






49. 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






50. Sorting and shipping of molecules