Test your basic knowledge |

Botany Test

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. Southern US - prop roots hold it in place as water moves out - it can breathe under water.






2. What process involves the movement of water across a semi-permeable membrane?






3. What type of fruit develops from a cluster of many simple flowers?






4. What is the function of the cortex in a root?






5. What is NOT a function of the vacuole?






6. Cladifils- modified stems that look like leaves - all parts are photosynthetic

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7. In what part of a flower is pollen produced?






8. What BEST describes plant hormones?






9. What best describes a dry fruit which opens at maturity?






10. Enzymes are an example of what type of molecule?






11. Transferring of the information from the DNA into the language of the mRNA.






12. During which phase of the cell cycle does DNA replication occur?






13. What are beneficial products made from bacteria?






14. What organelle do guard cells contain that other epidermal cells lack?






15. In double fertilization - one sperm cell fertilized an egg cell - What does the other sperm cell fertilize?






16. During which phase of mitosis does the nuclear envelope disappear?






17. What is a function of the epidermis?






18. What are the major groups of algae?






19. Epiphytes - valemine breaks down compost in roots






20. Iodine can be used to test for what molecule - resulting in a blue-black color?






21. Differences in type and location of human-managed ecosystems - quantity and quality of available drinking water and air may also be affected by rising levels of atmospheric carbon dioxide






22. Seeds are not protected by fruit and they do not have flowers - do not have shell around seeds - reproduce by releasing pollen into the air to make available to the ovule in the megaspores - causing fertilization






23. Have a cell wall - no membrane - and no nucleus






24. What hormone is most important in the ripening of fruits?






25. 'Alleles' are best described as...






26. Info. carrying molecule - single stranded






27. What is a final product of aerobic respiration?






28. What organelle contains DNA?






29. Bugs crawl into 'pitchers' - tiny hairs keep them from getting out - plant breaks down enzymes - and uses nitrogen. lives in places where nitrogen is limited.






30. What is a reactant in the photochemical reactions of photosynthesis?






31. During which phase of mitosis does the nuclear envelope disappear?






32. Traits that are desirable can be selected and bred for. process of selectively mating and breeding plants with particular traits.






33. What are homologous chromosomes?






34. In double fertilization - one sperm cell fertilized an egg cell - What does the other sperm cell fertilize?






35. Don't have roots or leaves - and are not producers - do not photosynthesize - and have cell walls made out of chitlin.






36. During which phase of meiosis do daughter cells become haploid?






37. What type of RNA has an anticodon?






38. What phenomena explains how a photon can strike any chlorophyll molecule in the antennal complex and still reach the reaction center?






39. Vascular and seed bearing






40. What is the role of endosperm?






41. Transfer of DNA to RNA






42. What is a reactant in the photochemical reactions of photosynthesis?






43. What organelle was observable in the onion epidermis stained with iodine?






44. A gymnosperm - lives in the desert for up to 3000 years - only grows 2 leaves - 5 feet across - they receive 1 inch of lower of rainfall per year - roots can grow under the soil at least a mile.






45. Transferring of the information from the DNA into the language of the mRNA.






46. Composite organisms consisting of a symbiotic organism composed of a fungus with a photosynthetic partner - can be used as a natural fertilizer






47. What are harmful effects of bacteria?






48. What would be a way of keeping a short-day plant from blooming?






49. What are harmful effects of bacteria?






50. What causes diffusion of gases to occur?