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Study the polypeptide structuresequence of a β-strand shown below
b)Calculate the weight of the protein in KDa
Lys-Gly-Asp-Trp-Ser-Glu
a)Draw the chemical structure of the polypeptide. Indicate on the structure the
backbone and peptide bonds
c)Calculate the length of the protein.
Why is acetyl Coenzyme A, an important molecule in cellular respiration? (2 marks)
NB:include intext referencing
3.At the end of the meeting with Vladimir Butin, Raymond concluded a sale of one million bottles of
Russian Vodka to be stored on his premises. Raymond cannot recall reading the terms and conditions or
signing the contract. Discuss whether the contract is enforceable in South African law, use case law to
support your view. (15)
4.Vladimir misrepresented to Raymond that the Russian Vodka was of premium quality when in fact it is
referred to in Russia as “Bootleg” vodka.
4.1 Explain whether Raymond may cancel on the basis of fraudulent misrepresentation if he did not
consume any alcohol before concluding the contract
2. A limited edition package is sold only to 200 customers for $130 each. The average value of the package for the 200 customers is $280. What is the total consumer surplus?
c. $30,000
ATP is produced during cellular respiration.However, it is also required.Explain.
(4 marks)
NB:Use intext Havard referencing
When his son was three years old, Vuyisanani made a deposit of R16 200,00 in the bank. The investment
grew at a simple interest rate and when Vuyisanani’s son was 22 years old, the value of the investment was
R46 980,00. Had the interest been 1,25% less, how much interest would he have lost?
1. A fair die is rolled eight times. Find the probability that no more than 2
sixes come up.
2. A consulting group believes that 70% of the people in a certain city are
satisfied with their health coverage. Assuming that this is true, find the probability
that from a random sample of 15 people.
a. Exactly 10 are satisfied with their health coverage?
b. At least 2 are satisfied with their health coverage?
c. What is the expected number of people out of 15 that are satisfied with their
health coverage?
3. You observe that the number of telephone calls that arrive each day on
your mobile phone over a period of a year, and note that the average is 3 per day.
Let X be the number of calls that arrive in any one day. Then what is the probability
of receiving at most 2 calls in any one day? at least 2 calls in any one day?
Zelda borrowed R5 760,00 from a bank for 21 months. For the discount loan she only received R4 752,00.
Answer the following questions:
(i) Find the yearly discount rate, d.
(ii) Determine the equivalent yearly simple interest rate, i.
Give the answers as percentages and round them to two decimal places.
.The human hemoglobin is a tetrameric protein of about 64.5 KDa, consisting of two α
chains andtwo β-chains tightly bound.
d)Find the length of the tetrameric proteinhemoglobinassuming its all an alpha
a)Calculate the number of amino acids present in the αchains
b)What is the length of each β-chain?
c)What is thesum of thelengthof the two α-chains?
helical structure.
Pamela borrows an amount of money for emergency house repairs. The interest on the loan is compounded
quarterly. After four years the debt accumulated by R7 980,00 to the amount of R32 923,00. The yearly
interest rate, expressed as a percentage and rounded to two decimal places, at which the money was borrowed,
is
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#339914 on Dec 2023