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 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






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






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






4. 1. Prokaryotes are approximately the same size as their organelle counterparts. 2. Double membrane 3. Chloroplasts and mitochondria have their own unique circular DNA






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






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






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






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






9. Inter-cellular links for long distance transportation of nutrients






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






12. Photosynthesis and storage






13. Outer layer - barrier to animals and pathogens






14. Command center






15. Provides flexible support - like in celery






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






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






18. Haploid - produces gametes through mitosis






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






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






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






22. Produces secondary vascular tissue






23. Brings leaf water and nutrients - exports sugars






24. Through cells






25. Produces bisexual spores - they become gametophytes w/ egg and sperm (study the picture)






26. Makes dermal tissue for bark






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






28. Convert light energy to chemical energy






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






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






31. CO2 - H2O - NADH - (ATP)






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






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






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






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






36. Increase population fitness in unstable environments






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






38. Diploid - produces spores through meiosis






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






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






41. Between cells






42. Glycolysis - krebs cycle - electron transport chain






43. Removal of H2O to link monomer and polymers






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






45. 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






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






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






48. Attached directly by the base






49. ***lets them be sexual?






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