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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. What organelle contains DNA?






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






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






4. What type of RNA has a codon?






5. What pigment absorbs energy and can emit an electron in photosynthesis?






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






7. How many sperm cells does each pollen grain typically carry?






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






9. Which substances pass through the open stomata of a leaf?






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






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






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






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






14. What BEST describes plant hormones?






15. What cell undergoes meiosis?






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






17. Info. carrying molecule - single stranded






18. What type of RNA has a codon?






19. Lives in california - it is a lily - waxy - thin - sharp leaves to stop water loss - holds water for up to 2 years.






20. What separates during meiosis-II






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






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






23. Which substances pass through the open stomata of a leaf?






24. What type of RNA has an anticodon?






25. Three generations of gymnosperms






26. A tissue in Which mitosis takes place - giving rise to the secondary xylem.






27. What process would be used by a plant to move potassium ions across a membrane AGAINST a concentration gradient?






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






29. What is a function of the epidermis?






30. What are harmful effects of bacteria?






31. Have a nucleus - and a cell membrane






32. What is a product of the biochemical reactions of photosynthesis?






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






34. What are beneficial products made from bacteria?






35. Vascular and seed bearing






36. What BEST describes plant hormones?






37. What is the primary function of collenchyma cells?






38. Where in a plant is the water potential lowest?






39. Which tissue system occurs throughout the plant - is made up of parenchyma - collenchyma - and sclerenchyma cells - and functions in storage - structural support - and metabolism?






40. 3 part molecule with a sugar - phosphate group - and nitrogenous base - carries genes






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

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42. Info. carrying molecule - single stranded






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






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






45. What is considered part of the protoplast?






46. What pigment absorbs energy and can emit an electron in photosynthesis?






47. What is the primary function of collenchyma cells?






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






49. Heating up bacteria until it is harmless and cannot function.






50. 'Alleles' are best described as...