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






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






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






4. Mycorrhizas and the bubble shaped guys






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






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






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






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






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






10. Convert carbs into ATP






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






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






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






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






16. Proteins - lipids - carbohydrates - and nucleic acid






17. 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






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






19. Ability crucial to plant structure and processing of energy - allows change to be made to help survival






20. Between cells






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






22. Special pointy leaves made to protect the stem






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






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






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






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






28. Attached directly by the base






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






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






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






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






33. Made of acetyl groups - structure energy and storage






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






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






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






37. Haploid - produces gametes through mitosis






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






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






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






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






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






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






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






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






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






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






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






49. Large compound formed from combinations of many monomers






50. Removal of H2O to link monomer and polymers






Can you answer 50 questions in 15 minutes?



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