1. First SI Session BIOL 212 - Howell
What is the difference between a dog and a marine biologist?
First SI Session BIOL Howell
Si website - resources page - updates
Tuesday 7:10 Gilman 2104
Thursday 4:10 Gilman 2104
Sunday 5:10 Gilman 2354

2. One wags its tail and the other tags a whale!

4. Everybody say…
NAME
MAJOR
YEAR
IF YOU COULD BE ANY KIND OF DOG, WHAT WOULD YOU BE AND WHY?

5. INVADE THE ISLAND EVERY TEAM GETS 15 PIRATE SHIPS
IF YOU GET THE QUESTION RIGHT, YOU CAN BOMB THE OTHER TEAMS SHIPS AND ERASE ONE
IF YOU GET THE QUESTION WRONG, YOU ACCIDENTALLY BOMB YOUR OWN SHIP AND HAVE TO ERASE ONE FROM YOUR SIDE
IF YOU GET THE BONUS QUESTION RIGHT, YOU RECEIVE 57 EXTRA PIRATES FOR YOUR INVASION
THE GOAL IS HAVE AS MANY PIRATES AND PIRATE SHIPS AT THE END OF THE GAME TO INVADE THE ISLAND WITH
GOOD LUCK AND AARRGGG YOU READY?!

6. Question 1
According to the scientific theory, how old is the universe?

7. Question 1 Answer
13.7 billion years old

8. Question 2
Where do new cells come from?

9. Question 2 Answer
Pre-existing cells by cell division

10. Question 3
Prokaryotes are sometimes bacteria, what are 3 things bacteria contain? (there are more than 3)

11. Question 3 answer Plasma membrane Single chromosome Ribosomes
Stiff cell wall
Few organelles

12. Question 4
What is the importance of having compartmentalized organelles, like eukaryotic cells?

13. Question 4 answer
Separation of incompatible chemical reactions
Increased efficiency of chemical reactions

14. Question 5
The nucleus contains the cells DNA and is surrounded by a double membrane ______________ _______ that is studded with __________.

15. Question 5 answer
Nuclear envelope
Pores

16. Question 6
True or False: The cytoskeleton is a static structure and does not move to support cell structure.

17. Question 6 answer
False: it is dynamic to help cell movement

18. Question 7
What are the three types of cytoskeletal elements?
BONUS: Which one is the smallest?

19. Question 7 answer
Microtubules
Intermediate filaments
Actin filaments
Actin is the smallest

20. Question 8
Protein ______ can walk on microtubules to transport materials around the cell.

21. Question 8 answer
Kinesin – it requires ATP to move

22. Question 9
True or False: Cilia and flagella contain microtubules and are involved in cell movement.

23. Question 9 answer
True

24. Question 10
What is the internal structure of a Flagella called?
BONUS: what are the critical motor elements called?

25. Question 10 answer Axoneme
Critical motor elements are dynein arms which are the reason for a swimming motion

26. Question 11
Muscle movement are due to two major filaments, what are they?

27. Question 11 answer
Actin and myosin

28. Question 12
What do I mean when I say the ‘secretory pathway’?

29. Question 12 answer
Secretory pathway refers to the pathway proteins move from inside the cell to outside the cell and to different organelles.

30. Question 13
Proteins intended for secretion from the cell are synthesized on ribosomes on the ____________.

31. Question 13 answer
Rough ER. It is the entry to the secretory pathway.

32. Question 14
What was the reason behind the Pulse- Chase Experiment?

33. Question 14 answer
To track where proteins go from synthesization to organelles.

34. Question 15
Why doesn’t the purple line go to zero after 7 seconds?

35. Question 15 answer
There are still proteins that have not been synthesized/never will be

36. Question 16
Why would you find a large population of proteins in a lysosome?

37. Question 16 answer
Lysosomes digest materials brought into the cell and it needs certain proteins to digest certain materials.

38. Question 17
The ______ _________ guides the ribosome with the mRNA to the ER.

39. Question 17 answer
Signal Sequence

40. Question 18
How are proteins moved from the ER to the golgi?

41. Question 18 answer
By vesicles

42. Question 19
What was the example used by Dr. Howell to describe how proteins know which vesicle to go to?

43. Question 19 answer
Train ticket

44. Will you come to SI again?
Question 20
Will you come to SI again?

45. Question 20 answer
YES! The next one is this Thursday at 4:10 in the same room!
Tell your friends!