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. Proteins - lipids - carbohydrates - and nucleic acid






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






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






4. Increase population fitness in unstable environments






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






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






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






8. Produces secondary vascular tissue






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






10. Stick straight up and act like straws in swamp and mangrove plants






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






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






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






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






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






16. Molecule manufacturing where ribosomes are - and then products are sent to the Golgi Apparatus






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






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






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






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






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






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






23. Haploid - produces gametes through mitosis






24. 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






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






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






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






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






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






30. Glycolysis - krebs cycle - electron transport chain






31. Diploid - produces spores through meiosis






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






33. Provides flexible support - like in celery






34. Addition of H2O to break apart polymer






35. Mycorrhizas and the bubble shaped guys






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






37. Large compound formed from combinations of many monomers






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






39. Makes dermal tissue for bark






40. Synthesize proteins based on mRNA code






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






42. Photosynthesis and storage






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






44. 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






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






46. Attached directly by the base






47. Between cells






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






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






50. Outer layer - barrier to animals and pathogens