W14 PLA Ksp Determination of CaSO4
In procedure 12, you are to titrate H+ with 0.010 M NaOH. Suppose that 12.50mL of
0.010 M NaOH was used to reach the endpoint. Each question is worth 1 pt.
1. How many moles of OH- was used to reach the endpoint?
A person who analyzes a firm's income and expenses over a specified period and selects appropriate ways to invest extra
funds is involved in
Effective implementation of a decision requires planning.
Question 2 o
1. DNA binding proteins interact with what region of the DNA to alter its shape?
A. Phosphate backbone
B. R group
C. Minor grove
D. Major grove
E. None of the above
2. The significance of the zinc molecule in the zinc binding finger is?
A. To interact wit
The TATA box is to the TBP as is the
a. trans acting element is to a cis acting element
b. sigma factor is to the -10 to -35 sequence
c. snRNA is to the spliceasome
d. the spliceasome is to snRNA
e. -10 to -35 sequence is to the sigma factor
1. The protein(s) that initially open the replication bubble in eukaryotes to allow
replication to initiate are called.
b. topoisomerase I
c. topoisomerase II
2. SSBs role in replication is
a. prevent hairpin formation ssDNA (sin
DNA is composed of a base, a _, and a phosphate group.
6 carbon sugar
6 carbon sugar reduced by one hydroxyl group
5 carbon sugar
5 carbon sugar reduced by one hydroxyl group
None of the above
The complementary base pairing can only be accomplished
Chemical bonds are composed up of two different types or categories
hydrogen and covalent bonds
Van Der Waals and non-covalent bonds
covalent and non-covalent
non-covalent and hydrogen
none of the above
The atomic weight of any atom or the molecula
Mass Media and Society
December 6, 2010
1. Conspicuous consumption is when people buy items to impress others and also to flaunt
that they have money. An example of something a rich person may buy would be
electronics. A person may buy a bigger flat scree
Biol 203 Cell Biology Problem Set 5
1. (True/False).The differences in the patterns of proteins produced in different
specialized cell types are accurately reflected in the patterns of expressed mRNAs and
mRNAs only. Explain your answer.
- The statement a
Biol203 Cell Biology Problem Set 4
1. Which of the following mutational changes would you predict to be the most
deleterious to gene function? Explain your answer.
1. Insertion of a single nucleotide near the end of the coding sequence.
2. Removal of a si
Problem set 3
1. What, if anything, is wrong with the following statement: Both germ-cell DNA
stability and somatic-cell DNA stability are essential for the survival of the species.
Explain your answer.
-True both germ-cell DNA stability and
Biol 203 Cell Biology Problem Set 2
1. . DNA isolated from the bacterial virus M13 contains 25% A, 33% T, 22% C, and
20% G. Do these result strike you as peculiar? Why or why not? How might you
explain these results?
In all samples of double-stranded DNA,
Cell Biology Spring 2012
Problem set 1
1. If an uncatalyzed reaction occurs at the rate 1 event per century and if an enzyme
speeds up the rate by a factor of 1014, how long in seconds does it take the enzyme to
catalyze one event?
The enzyme catalyzes ev
Cell Biology Problem set 6
1. (True/False). The membranes that partition the cell into functionally distinct
compartments are impermeable. Explain your answer.
- This statement is false. The membranes that partition the cell into functionally
Chemistry Lab II
Chemical Equilibrium: Le Chateliers Principle
"Write an equation for the equilibrium between aqueous Fe3+, SCN-, (as reactants), and
[FeSCN]2+ (as the product)." Just write the net ionic equation (don't include the spectator
April 25, 2011
After reading the book the Millionaire Next Door, I found it to be very helpful. I realized
that I am like most Americans and will not become a millionaire unless I change my ways. I may
make a decent amount of m
Mass Media and Society
December 15, 2010
For this paper I decided to write about how shows about pregnant teenagers, which the
media airs on television, can have a positive and a negative influence on young teens. A perfect
Assessing the Effects of Acid Mine Drainage
on Aquatic Communities
Many miles of streams in Pennsylvania are fishless due to Acid Mine Drainage (AMD).
AMD begins when water percolates through the broken up bedrock in the ground tha
Species Area Relationships
Figure 1: Relationship of accumulated number of species per each m2 plot in the
grass and forest.
Figure 2: Comparing number of species in grass and forest with trendline and
Species accumulation is
Table 1. Parameters assessing the structure of Old Growth Forests and Second Growth
Total Density (#/ha)
Stand Basal Area (m
Total CWD (m3
Mean log volume (m
Table 2. Species composition of forest of Relative Density an
Table I. Life table of males born pre-1880 Clarion County Cemetery Mortality record where
x=age recorded, N(x)=number of individuals at age x, d(x)= number of deaths in age x, q(x)=
probability of individuals that die in age x[dx/Nx] per five years, and l
March 28, 2012
In the state of Pennsylvania, one of the most obvious sights is all the existing forests. A
lot of the forests in this state can be defined as second or third growth forests meaning that there
is an old growt
March 7, 2012
Prey use many defenses against their predators and predators can also use the same
defenses when trying to get to their prey. Morphology is a trait that many prey use against their
predator. This term can be se
Sampling a Hill of Beans
Lab Report #5
In this lab we observed a small sample of beans, 5, and a large sample of beans, 25.
Information such as the weight of beans were recorded and placed in data tables. From there the
sample means, standard
February 1, 2012
Lab Report #1
Table 1. Length-weight of fish collected at Kahle Lake by PA Fish and Boat Commission
In this Scatter plot there were two outliers from the data that was collected. This could
have happened due to the lack of food and also t
The purpose of this lab was to determine the molecular weight of urea.
Before starting the procedures an ice bath was made and the temperature was dropped to 0C. 10
mL was added to a test tube and then a thermometer was placed inside.
November 13, 2010
Devastation In 2005
There are five different categories of hurricanes, but the one that touched our hearts in
2005 was a category 3, Hurricane Katrina. A category 3 hurricane can have winds
1. In the box below, diagram the chemical structure of the tri-peptide Aspartic Acid - Lysine Serine. Show the complete structure of each R group. Label the amino end and the carboxyl end.
Circle the peptide bonds.
2. Rate the hydrophobicity of eac
Final Exam Questions
May 1, 2011
Women today and women 50 years ago are very different. Fifty years ago woman did not
have the rights that we currently posses now. Today the spread of global womens organizations
and the impact of womens contri