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






2. Synthesize proteins based on mRNA code






3. Part of leaf for photosynthesis






4. Proteins - lipids - carbohydrates - and nucleic acid






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






6. Mycorrhizas and the bubble shaped guys






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






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






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






10. Between cells






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






12. CO2 - H2O - NADH - (ATP)






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






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






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






16. Addition of H2O to break apart polymer






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






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






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






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






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






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






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






24. Outer layer - barrier to animals and pathogens






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






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






27. Increase population fitness in unstable environments






28. 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.


29. Convert light energy to chemical energy






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






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






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






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






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






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






36. Removal of H2O to link monomer and polymers






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






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






39. Made of monosaccharides - building blocks of life - sugars






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






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






42. ***lets them be sexual?






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






44. 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






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






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






47. Command center






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






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






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