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






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

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3. 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






4. What cell undergoes meiosis?






5. What is NOT a function of the vacuole?






6. Seedless - multicellular - and terrestrial - have a vascular system - reproduce by spreading spores that are found on the underside of mature leaves.






7. Where in the chloroplast do protons accumulate - resulting in an electrochemical gradient which drives ATP-synthase?






8. What is considered part of the protoplast?






9. What causes diffusion of gases to occur?






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






11. What are homologous chromosomes?






12. Change in gene frequency in a gene population over time.






13. What cell undergoes meiosis?






14. What structure is MOST important in generating root pressure?






15. You can determine the age of a woody branch by counting these






16. Change in gene frequency in a gene population over time.






17. NO vascular tissue - NO roots - have modified photosynthetic tissue to help it absorb carbon dioxide without losing too much water - can survive in variety of environments - seedless - and commonly seen as mosses - hornworts - and liverworts.






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






19. What are adenine - guanine - thymine - cytosine?






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






21. What type of RNA has a codon?






22. What is NOT a function of the vacuole?






23. What plant tissue functions in conducting water from the roots to the leaves?






24. If an ovule is fertilized - what will it develop into?






25. What is a function of the epidermis?






26. Info. carrying molecule - single stranded






27. Individuals best adapted to their environment reproduce offspring. it requires variation - heritability - and selection.






28. What tissue can be found in a root but not in a stem?






29. The ocular lens of a microscope is 10x - and the objective lens is 4x. What is the total magnification of the microscope?






30. 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.






31. What are harmful effects of bacteria?






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






33. What is considered part of the protoplast?






34. What hormone stimulates cell division and may interfere with the function of auxin - leading to the development of 'witches-broom'?






35. What is the main function of the roots of a corn plant?






36. How does DNA replication take place?






37. What hormone functions in stomatal closure and can be used to induce dormancy in cultivated plants?






38. 3 part molecule with a sugar - phosphate group - and nitrogenous base - carries genes






39. What separates during meiosis-II






40. What organelle contains DNA?






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






42. What are beneficial products made from bacteria?






43. An ecosystem with similar climatic conditions on earth - such as communities of plants - animals - and soil organisms






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






45. Lives in desert - leaves have waxy cuticle - succulent - holds onto water






46. 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.






47. Vascular and seed bearing






48. What is a function of the epidermis?






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






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