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. Produces secondary vascular tissue






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






3. Cell walls of cellulose - photosynthesis - indeterminate growth - asexual and sexual reproduction






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






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






6. Provides flexible support - like in celery






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






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






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






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






11. Increase population fitness in unstable environments






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






13. 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






14. Photosynthesis and storage






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






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






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






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






19. Between cells






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






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






22. Convert light energy to chemical energy






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






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






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






26. Mycorrhizas and the bubble shaped guys






27. Glycolysis - krebs cycle - electron transport chain






28. Removal of H2O to link monomer and polymers






29. Through cells






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






31. 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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32. Diploid - produces spores through meiosis






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






34. Flower to play the role of the gametophyte - producing two different spore types






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






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






37. Brings leaf water and nutrients - exports sugars






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






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






40. Sorting and shipping of molecules






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






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






43. Large compound formed from combinations of many monomers






44. Makes dermal tissue for bark






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






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






47. 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






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






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






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