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






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






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






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






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






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






7. Removal of H2O to link monomer and polymers






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






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






10. Made of acetyl groups - structure energy and storage






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






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






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






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






15. ***lets them be sexual?






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






17. 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






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






19. Increase population fitness in unstable environments






20. Outer layer - barrier to animals and pathogens






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






22. 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






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






24. Brings leaf water and nutrients - exports sugars






25. Produces secondary vascular tissue






26. Through cells






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






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






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






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






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






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






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






35. Photosynthesis and storage






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






37. Convert carbs into ATP






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






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






40. Command center






41. Part of leaf for photosynthesis






42. Provides flexible support - like in celery






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






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






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






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






47. Makes dermal tissue for bark






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






49. Large compound formed from combinations of many monomers






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