1) Human history is full of examples of adaptability and innovation. Some observers believe that predictions of climate impact do not take human adaptability into account, and so climate impacts tend to be overestimated. Do you agree?

2) As other countries rush to compete in the global market, their greenhouse gas emissions rise rapidly as well. Leaders in developing countries argue that they should have the same opportunities to grow and compete that the developed world enjoyed. What strategies and approaches could induce developing nations to reduce their emissions?

3)Material continually cycles in the natural world, where waste from one organism or process becomes food for another. If that is so, what prevents humans from taking advantage of the potential value in human biological waste?

4)List several human impacts on the health of the oceans. Describe how elements of your life connect to each impact.

Valron Company has two support departments, Human Resources and General Factory, and two producing departments, Fabricating and Assembly.

Support Departments Producing Departments

_________Human Resources______    General Factory____ Fabricating______Assembly

Direct costs ___$160,000___________    $350,000 ______    $114,200_______ $95,000

Normal activity:

Number of employees______ — _________ 60__________    80____________    170

Square footage    ________1,000 _______    — __________ 5,700___________13,300

The costs of the Human Resources Department are allocated on the basis of number of employees, and the costs of General Factory are allocated on the basis of square footage. Valron Company uses the direct method of support department cost allocation.

Required:

1. Calculate the allocation ratios for the four departments using the direct method. If an amount is zero, enter "0". Round your answer to the nearest cent. Proportion of Driver Used by   

__________________Human Resources___General Factory__ Fabricating______Assembly

Human Resources _______________    _____________    ___________    _________

General Factory    ______________ _____________    ___________    __________

2. Using the direct method, allocate the costs of the Human Resources and General Factory departments to the Fabricating and Assembly departments. If an amount is zero, enter "0". Support Departments    Producing Departments

_________Human Resources____General Factory____Fabricating_____Assembly

Direct costs $_______    $ ___________ $______________ $ ___________

Allocate:

Human Resources $_________    $__________ $______________    $_____________

General Factory    $_________ $__________ $_______________    $______________

Total after allocation $________    $_________ $_____________    $_______________

Which of the following biological functions does the protein 'myosin' perform?

If hemoglobin has a mutation of the following amino acid residues: His 2, His 143, and Lys 82 which have caused them to be changed to aspartic acid residues, how does this alter hemoglobin’s function? Specifically discuss how this could affect binding with the expected ligand at this site (name this ligand and describe if this interaction be stronger or weaker) and the overall effect to oxygen binding capacity and affinity these mutations have relative to the wild type hemoglobin sequence

(a) If a person is deficient in Vitamin B6, what is the consequence? How does this deficiency affect
amino acid metabolism?
(b) Briefly describe and explain what happens when there is a defect in phenylalanine metabolism.
(c) A patient presents with symptoms of blurred vision, tremors, and has difficulty speaking. Lab
tests reveal increased levels of ammonia and upon further questioning, you find out that he is an
alcoholic. What is wrong with this patient, and how will you as a nurse manage him?

Water reabsorption

PAH (para-amino hippuric acid) is often injected into patients to test maximum kidney function (i.e. clearance rates). That is because PAH is

Sulfuric acid, H2SO4, is somewhat unique in that it is a diprotic acid but it is also a strong acid. Thefirst dissociation of H2SO4 is as a strong acid, and is thus a complete dissociation. However, thesecond dissociation of H2SO4 is as a weak acid. Unlike with other polyprotic acids, you cannotneglect the second dissociation of H2SO4 because it will impact the pH of the solution.

Determine the pH and the concentrations of all aqueous species (H

+
, OH

–
, H2SO4, HSO4

–
, and SO4

2–
)

in a 0.020 M H2SO4 solution.

2. Sugars are essential components of nucleic acids.

a) Provide the precise chemical description (anomer, isomer and either pyranose or furanose form) of the circular stereoisomers that are formed by ribose in cells.

b) Which circular stereoisomer (anomer, isomer and either pyranose or furanose form) is found in DNA?

c) Using the language of the unit, give an explanation whether the sugar components of DNA are reducing sugars? . (no more than 50 words; use key words).