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. Convert light energy to chemical energy






2. Outer layer - barrier to animals and pathogens






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






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






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






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






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






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






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






10. 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






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






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






13. Between cells






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






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






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






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






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






19. Diploid - produces spores through meiosis






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






21. Attached directly by the base






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






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






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






25. Addition of H2O to break apart polymer






26. Glycolysis - krebs cycle - electron transport chain






27. Haploid - produces gametes through mitosis






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






29. Through cells






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






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






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






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






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






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






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






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






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






39. Brings leaf water and nutrients - exports sugars






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






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






42. Stores water and waste and ultimately determines the shape of the cell






43. Command center






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






45. Photosynthesis and storage






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






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






48. Sorting and shipping of molecules






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






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







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