This document provides information about the structure and function of skin, skin problems, and microorganisms. It discusses the three main layers of skin - epidermis, dermis, and subcutaneous layer - and what each contains. It describes receptor cells and their role in detecting stimuli, melanin and its role in skin color, and examples of skin problems like skin cancer. It also discusses the role of microorganisms like bacteria and fungi, how they reproduce, what they look like under microscopes, and examples of beneficial bacteria including those that aid decomposition and nitrogen fixation.

1. 2 pt 3 pt 4 pt 5pt 1 pt 2 pt 3 pt 4 pt 5 pt 1 pt 2pt 3 pt 4pt 5 pt 1pt 2pt 3 pt 4 pt 5 pt 1 pt 2 pt 3 pt 4pt 5 pt 1pt Skin Structure Skin Function Skin Problems Microorganisms Beneficial Microbes

2. This is the order of the skin layers from top to bottom

3. What is epidermis, dermis, subcutaneous (fat )layer

4. This layer contains No blood vessels

5. What is the epidermis?

6. These nerve endings help us detect changes in our environment

7. What are receptor cells ?

8. sebum

9. What is the fluid that secreted from oil glands.

10. keratin

11. What is a tough fibrous protein found in skin, hair, and nails

12. These are examples of receptors found in the skin

13. What are pain receptors, pressure receptors and temperature receptors?

14. This is another name for adipose tissue

15. What is fat tissue?

16. sweat glands, receptor cells, sebaceous galnds, and blood vessels

17. What does the dermis consist of?

18. These can widen or narrow to help control body temperature

19. What are small blood vessels (capillaries)?

20. It gives a person the color of their skin, making them darker or lighter

21. What is melanin?

22. When skin cells reproduce abnormally quickly and spread to other parts of the body

23. What is skin cancer?

24. This substance is like the skin’s own built-in sun tan lotion

25. What what is melanin?

26. These tubular structures deliver either sweat or oil to the skin surface

27. What are ducts?

28. This substance is released at the skin surface to help cool the body

29. What is sweat?

30. This layer of the skin helps insulate the body against extremes of temperature

31. What is the adipose or fat layer?

32. These parts help detect stimuli like pressure, pain, and temperature

33. What are receptor cells (nerve endings)?

34. This is how bacteria are able to reproduce

35. By simply splitting in 2 (binary fission)

36. spores

37. What are the parts that most fungi use to reproduce?

38. Small, smooth, round and shiny

39. What do bacterial colonies look like on agar?

40. Tiny spheres, rods, or spirals

41. What do bacteria look like under the light microscope?

42. another name for anaerobic cellular respiration

43. What is fermentation?

44. Decomposers are able to get food from other organisms by doing these two things

45. Releasing enzymes and absorbing nutrients

46. These are the 4 “ basic materials” that decomposers produce as result of breaking down dead organisms

47. What is carbon dioxide, water, minerals and other nutrients

48. These microorganisms help convert nitrogen into nitrates which can be absorbed by plants

49. What are bacteria (nitrogen-fixing bacteria)?

50. Acidophillus (acidophiles)

51. What are the bacteria which “love” acidic conditions (found in yogurt)?