vce biology quiz 1
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- 1. VCE BIOLOGY QUIZ 1 www.drlakshmisharma.com Dr Lakshmi Sharma NO LIMITS TO LEARNING! BELIEVE & YOU CAN ACHIEVE! Plants response to Environment & Regulatory mechanisms Animals
- 2. Face Off
- 3. Are you ready?
- 4. Question 1 What is Photoperiodism?
- 5. Photoperiodism is the plants response to the length of light and dark periods
- 6. Question 2 What is Thigmotropism?
- 7. The plants response to touch
- 8. Question 3 What are the 2 types of hormones in the body?
- 9. 1. Synthesised from fatty acids Small & lipid-soluble, easily pass through membranes nucleus-act on genes Steroid hormones testosterone & oestrogen 2. Synthesised from amino acids Water soluble, cannot pass through membranes bind to receptors plasma membrane, responses in cell. Adrenaline & growth hormones
- 10. Question 4 Explain short day plants?
- 11. Short Day Plants require long nights to trigger flowering. Late summer, autumn or winter
- 12. Question 5 What is the main difference between the nervous & endocrine system?
- 13. Endocrine system is slower E.S hormones & glands N.S neurons
- 14. Question 6 What is vernalisation?
- 15. Vernalisation:period of winter cold that stimulates flowering
- 16. Question 7 What is A ? A
- 17. A
- 18. Question 8 Where is Ethylene produced?
- 19. Ripening fruits;flowers, seeds, leaves & roots.
- 20. Question 9 Explain/examples ve & +ve geotropism?
- 21. Roots +ve & leaves ve geotropism
- 22. Question 10 What is the action potential in neurons?
- 23. Nerve impulse or action potential is a wave of electrical change along the axon membrane stimulation involving the exchange of sodium and potassium ions. At the dendrite it stimulates the release of a chemical transmitter, which diffuses across a synapse.
- 24. Question 10 What are the 2 components of the central nervous system?
- 25. The brain & the spinal cord
- 26. Question 11 What happens to the cells in a plant shoot when Auxins are released?
- 27. Elongate this causes the tip to bend towards the light
- 28. Question 12 Give 1 example of how plants differ from animal hormones?
- 29. Plants have; 1. Fewer Hormones 2. Relatively simple hormones 3. Hormone (not in glands) produced by cells receiving the stimulus
- 30. Question 13 Name 4 types of receptors in humans?
- 31. Photoreceptors Visible light, infrared radiation Chemoreceptors Taste, smell, communication Oxygen, CO2, pH, water, salts etc Mechanoreceptors Hearing, balance, pressure, touch Thermoreceptors Heat and cold
- 32. Question 14 How do plants survive the harsh winters and drought?
- 33. Plants survive harsh winters and droughts by: Seed dormancy Bud dormancy Vernalisation
- 34. Question 15 Which hormone is responsible for fruit ripening?
- 35. Ethylene
- 36. Question 16 Give an example of a reflex action?
- 37. Knee jerk, hand on hot plate etc
- 38. Question 17 Abscisic Acid controls stomata movement why do these close in drought conditions?
- 39. To prevent water lose from plant (prevent dehydration)
- 40. Question 18 This is an example of what?
- 41. +ve Geotropism
- 42. Question 19 Which hormone promotes growth of the entire plant?
- 43. Gibberellins
- 44. Question 20 Name the 2 types of nervous systems?
- 45. Central Nervous System Peripheral Nervous System
- 46. Question 21 What is A state its function? A
- 47. How do plants respond to the environment Question 22
- 48. The environmental stimulus causes a sensitive cell to produce a particular hormone
- 49. Question 23 How would you define this ?
- 50. Withdrawal Reflex
- 51. Question 24 Which hormone is at play in the photo?
- 52. Abscisic Acid ABA
- 53. END OF QUIZ Score Please !!!
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