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. Haploid - produces gametes through mitosis






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






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






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






5. Addition of H2O to break apart polymer






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






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






8. 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






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






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






11. Glycolysis - krebs cycle - electron transport chain






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






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






14. Proteins - lipids - carbohydrates - and nucleic acid






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






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






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






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






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






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






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






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






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






24. Made of acetyl groups - structure energy and storage






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






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






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






28. Outer layer - barrier to animals and pathogens






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






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






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






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






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






34. 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






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






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






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






38. 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






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






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






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






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






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






45. Makes dermal tissue for bark






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






47. Special pointy leaves made to protect the stem






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






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






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