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






2. Provides flexible support - like in celery






3. Convert carbs into ATP






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






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






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






7. Free energy plants get out of the reactant's potential energy






8. Special pointy leaves made to protect the stem






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






10. CO2 - H2O - NADH - (ATP)






11. Photosynthesis and storage






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






13. Mycorrhizas and the bubble shaped guys






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






15. Between cells






16. 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






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






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






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






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






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






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






23. Part of leaf for photosynthesis






24. ***lets them be sexual?






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






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






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






28. Haploid - produces gametes through mitosis






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






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






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






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






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






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






36. Large compound formed from combinations of many monomers






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






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






39. Sorting and shipping of molecules






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






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






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






43. Produces secondary vascular tissue






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






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






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






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






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






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






50. Outer layer - barrier to animals and pathogens