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






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






4. Command center






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






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






7. 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






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






9. Attached directly by the base






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






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






12. Mycorrhizas and the bubble shaped guys






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






14. Large compound formed from combinations of many monomers






15. Sorting and shipping of molecules






16. Produces secondary vascular tissue






17. 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






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






19. Proteins - lipids - carbohydrates - and nucleic acid






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






21. CO2 - H2O - NADH - (ATP)






22. Produces microgametophyte that stays with sporophyte plant (produces egg)






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






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






25. Develop bordered pits to prevent spreading of bubbles - tracheids let water move laterally - refill at night - produce new xylem every spring






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






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






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






29. Synthesize proteins based on mRNA code






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






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






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






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






34. Diploid - produces spores through meiosis






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






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






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






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






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






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






41. Penetrate root cortex into vascular tissue - aid in acquiring nitrogen and phosphorous in exchange for sugars






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






43. ***lets them be sexual?






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






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






46. Addition of H2O to break apart polymer






47. Convert carbs into ATP






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






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






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