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






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






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






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






5. Produces secondary vascular tissue






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






7. Command center






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






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






10. Through cells






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






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






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






14. CO2 - H2O - NADH - (ATP)






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






16. Synthesize proteins based on mRNA code






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






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






19. 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.


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






21. ***lets them be sexual?






22. Gather and convert light energy - control CO2 and water loss






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






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






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






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






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






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






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






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






31. Diploid - produces spores through meiosis






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






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






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






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






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






38. Increase population fitness in unstable environments






39. 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






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






41. Large compound formed from combinations of many monomers






42. Removal of H2O to link monomer and polymers






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






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






45. Free energy in reactants stored in products (carbs)






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






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






48. Sorting and shipping of molecules






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






50. Photosynthesis and storage