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






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






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






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






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






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






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






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






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






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






11. Special pointy leaves made to protect the stem






12. Part of leaf for photosynthesis






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






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






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






16. Between cells






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






18. Brings leaf water and nutrients - exports sugars






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






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






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






22. Attached directly by the base






23. Haploid - produces gametes through mitosis






24. Increase population fitness in unstable environments






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






26. Convert light energy to chemical energy






27. Proteins - lipids - carbohydrates - and nucleic acid






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






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






30. Synthesize proteins based on mRNA code






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






32. Produces secondary vascular tissue






33. Through cells






34. Convert carbs into ATP






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






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






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






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






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






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






41. Diploid - produces spores through meiosis






42. 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






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






44. Removal of H2O to link monomer and polymers






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






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






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






48. Addition of H2O to break apart polymer






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






50. CO2 - H2O - NADH - (ATP)