Midterm1:CS186,Spring2015
Prof.J.Hellerstein
You should receive a double-sided answer sheet and a 7-page exam. Mark your name and login
on
both
sides of the answer sheet, and in the blanks above. For each question, place
only your
final answer
on the
Name: _
BE153 Midterm II
Fall 2006
Closed book, closed notes
1. Imagine that you have the endoplasmic
reticulum (ER) inside of a cell. Among its many
other functions, the ER stores calcium. Lets
say that the ER is permeable to Ca2+ and
Cl-, but not to a l
B
oEC165/EEC145B Fa"
Pr of
Mi dt er m
Thur s day oct ober 13, 2o11
y
s t eve Cono
1. ) YOu mus t wor k on your own.
2. ) YOu r ay cons ul t 2pages of not es , and any t abl es
e hand out ,
3. ) I vvi " be ava" ab e dur i ng t he t es t f or c ar i cat
Principles of Synthetic Biology: Midterm Exam
October 28, 2010
1
1.1
Conceptual Simple Circuits
Consider the plots in figure 1. Identify all critical points
with an x. Put a circle around the x for each critical
point if it is stable. (3 pts)
(1)
(2)
dA
d
BioEC165/EEC145B Fall 08
Prof. Steve Conolly
1.5 hours. Tuesday 9 December 2008
1.) Good Luck!
2.) You may quote results from class notes or texts.
3.) Each problem has equal weight.
4.) Please show all work. Box answers. Be neat. Staple your papers.
5.)
BioEC165/EEC145B Fall
Prof. Steve Conolly
1.) You must work on your own.
2.) You may consult 2 pages of notes, and any tables we hand out.
3.) I will be available during the test for clarifications of questions. No hints.
4.) Each problem has equal weight
Problem 7
To understand this problem we first need to calculate the q value of the given
+ v
+ +e
n p
reaction.
Disreagarding the mass of the neutrino as negligible the equation for the q value becomes
Q=[ m ( n )m ( p )m ( e ) ] c 2
Q=[ 1.0086651.007270
Midterm sample poisoning problem
Fresh fuel is loaded into a reactor with an initial concentration of boron-10. Assume a completely thermal reactor and
constant flux.
1. Write the initial conditions and the differential equations for Xe-135, I-135 and B-1