Question #2 (5 pts): Compare the G proteins
that acts in transducing the signal from b-adrenergic...
Question #2 (5 pts): Compare the G proteins
that acts in transducing the signal from b-adrenergic receptors,
and Ras. What properties do they share? How do they differ? What is
the functional difference between Gas and
Gai?
When the receptor binds the trimeric G-proteins, it acts as a
GEF for the alpha (α) subunit, forcing the alpha subunit to
exchange its GDP for a GTP. GTP-binding by the α subunit causes it
to dissociate from the Beta-Gamma subunits, leading to activation
of both. If the receptor can’t bind the trimeric G-protein, the α
subunit will remain in the GDP. In another scenario, it can be in
an inactive state, and will remain bound to the Beta-Gamma
subunits....
Question 2 (5 pts). In roses, two gene loci on
an autosomal chromosome are 30cM from each other. At locus 1, the
E allele for red flower color is completely
dominant to the e allele for pink flower color. At
locus 2, the G allele for thorns is completely
dominant to allele g for thornless. A particular
rose cultivar, true-breeding for red flower and thorns, is crossed
to cultivar 2, true-breeding for pink flowers and thornless. The F1
generation is...
Question 11 5 pts
Nitrosyl chloride, NOCl, decomposes to NO and Cl2.
2NOCl (g) ----> 2NO (g) + Cl2 (g)
Determine the overall order and rate constant "k" for this
reaction from the following data:
[NOCl] (M)
0.10
0.20
0.30
Rate (M/h)
8.0 x 10–10
3.2 x 10–9
7.2 x 10–9
QUESTION 1
Define the term coenzyme. 2 pts.
Name and describe the role of the B vitamins that function as
part of the structure of coenzymes. 4 pts.
QUESTION 2
Why does following a vegan diet result in risk for B-12
deficiency? 2 pts.
What is Vitamin B-12 deficiency, list 3 ways to supplement for
this deficiency and list when each method is appropriate. 3
pts.
QUESTION 3
How do the vitamins function in the metabolic process? (list the
vitamins)...
2) Proteins imported to which of the following organelles do NOT
have their signal sequence cleaved?
A. Peroxisomes
B. Mitochondria
C. Endoplasmic reticulum
D. Proteins targeted to all of these organelles have their
signal sequences cleaved
Question H:
Let’s keep using the AM-radio style signal from Question G: f(x)
= sin(12x) * sin(x) on [0,2*pi].
It’s okay to use Wolfram Alpha or Desmos to do the following
integrals.
i)
Integral
Numeric result
(1/pi)*integral of f(x)*cos(1x) dx from 0 to 2pi
(1/pi)*integral of f(x)*cos(2x) dx from 0 to 2pi
Etc., with cos(3x)
...cos(4x)...
...cos(5x)...
...cos(6x)...
...cos(7x)...
...cos(8x)...
...cos(9x)...
...cos(10x)...
...cos(11x)...
...cos(12x)...
...cos(13x)...
...cos(14x)...
ii) What do you get if you graph 0.5*cos(11x)+-0.5*cos(13x)
?
1. (5 pts.) Compare the momentum of the system before impact
with the momentum of the system after impact. Do they agree within
the limits of experimental uncertainty?
2. (5 pts.) Compare the kinetic energy of the system before
impact with the kinetic energy of the system after impact. How much
energy was lost? What happened to it? How well does the
experimental ratio agree with the theoretical ratio of the kinetic
energy before impact to the kinetic energy after...