Requests for regrades for this exam will be done in writing:
Tuesday, 22 May @ 1:30 - 3:30 PMIn BPS 1240 (right here)
BSCI 230 Today, 15 May 2001 - Lecture 24 --- 25
First, let me thank all of you for a most enjoyable semester.
You have made my decision to leave administration and to return to the
classroom so much easier. A very special thank you to those who gave in
class performances, agreed to trade barbs with Dr. K-I-A for the good of
the claas, and who weren’t afraid to speak up.
Exam 3 Recap:
First, many folks did very poorly. Some adjustment
may
be necessary at the end, but it is in your best interest to do well on
the final to make it easy for Dr. K-I-A to give you the benefit of the
doubt.
Question #1: This muscle needed large tension, rapid contraction,
but had to undergo a significant change in length. So you build it
striated, thick (parallel sarcomeres), and long (sarcomeres in series).
You also can’t have much passive tension until the muscle reaches its longest
working length. Many folks did not read the question and failed to
put the L and S indicators on the graph. It was not the resting length!!!!!
For the final graph, many of you gave me the three graphs which were the
basis for the one I asked for. If you read the axes labels, any other
answer wouldn’t make sense. The final part was simply the MLCK story
regurgitated.
Question #2: Aaaarrrgggghhhh! Right off an old exam!!!!!!
Questions # 3, 4, 5 & 6: Simple return of information.
Question #7: Structure - function! How many times
did we draw and discuss the need for a loooooong action potential
in cardiac muscle, its causes, and the reasons for it?
Question #8: Were you worried when all but one was increase??????
Your Final Exam:
Approximately 35 points out of 200 will be on last three lectures
Also note the following questions based on the last lecture (that
I never got to deliver):
#1. Explain how a protein destined for inclusion in an intracellular secretory vesicle reaches its destination via cotranslational import. Begin with a nascent polypeptide being translated on a ribosome and detail the remaining steps.
#2. Draw a picture of a polypeptide destined for the intermembrane space of a mitochondrion. Include all relevant sequences.
Other Things To Know:
The final two lectures included references to the following figures
from the text:
Text from lecture slides:
IF2 & tRNAfMet
Thus IF2 insures that fMet
is first amino acid
Cotranslational Import
Thank You &Fond Farewells