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# Multiple Choice

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Suppose you borrow at the risk-free rate an amount equal to your initial wealth and invest in a portfolio with an expected return of 20% and a standard deviation of returns of 16%. The risk-free asset has an interest rate of 4%; calculate the expected return on the resulting portfolio ______.
20%
40%
36%
none of the above

Beta measure indicates ______.
the ability to diversify risk
the change in the rate of return on an investment for a given
change in the market return
the actual return on an asset
A and C

If the beta of Microsoft is 1.7, risk-free rate is 3% and the market risk premium is 8%, calculate the expected return for Microsoft. (Points: 5)
16.6%
15.6%
13.9%
11.3%

The cost of capital for a project depends on ______.
the company's cost of capital
the use to which the capital is put, i.e. the project
the industry cost of capital
all of the above

Cost of capital is the same as cost of equity for firms ______.
financed entirely by debt
financed by both debt and equity
financed entirely by equity
none of the above

The market value of XYZ Corporation's common stock is 40 million and the market value of the risk-free debt is 60 million. The beta of the company's common stock is 0.8, and the expected market risk premium is 10%. If the treasury bill rate is 6%, what is the firm's cost of capital? (Assume no taxes.)
9.2%
14%
10%
none of the above

Cost of equity can be estimated using ______.
discounted cash flow (DCF) approach
capital Asset Pricing Model (CAPM)
arbitrage Pricing theory (APT)
all of the above

You are given the following data for year-1. Revenue = \$43; Total costs = \$30; Depreciation = \$3; Tax rate = 30%. Calculate the operating cash flow for the project for year-1.
\$7
\$10
\$13
none of the above

A project has the following cash flows: C0 = -100,000; C1 = 50,000; C2 = 150,000; C3 = 100,000. If the discount rate changes from 12% to 15%, what is the change in the NPV of the project (approximately)?
12,750 increase
12,750 decrease
122,650 increase
135,400 decrease

The final decision on a project should be from ______.
project analysis
break-even analysis
NPV analysis
sensitivity analysis

#### Solution Summary

The solution explains various multiple choice questions relating to expected return, beta, cost of capital, cost of equity, cash flow and NPV

\$2.19

## Amino acids multiple choice questions

Which statement is incorrect about the classification of amino acids?
a. Alanine and valine are neutral, nonpolar amino acids.
b. Lysine and arginine are basic amino acids.
c. Tryptophan and phenylalanine are aromatic amino acids.
d. Aspartic acid and aspargine are acidic amino acids.

Which of the following amino acids is the least water soluble at pH 7.0?
a. Tryptophan
b. Glutamic acid
c. Cysteine
d. Histidine

Which amino acid would migrate the furthest toward the anode (positive electrode) during paper electrophoresis at pH 7.0?
a. Aspartic acid
b. Alanine
c. Lysin
d. Glutamine

Which of the following functional groups, attached to an inert matrix, could function as a cation exchanger?
a. Diethylaminoethyl-
b. p-aminobenzyl-
c. Carboxymethyl-
d. Trimethylammonium-

Which of the following amino acids would make the best buffer at pH 4.5?
a. Histidine
b. Alanine
c. Glutamine
d. Aspartic acid

Which fact is incorrect about stereoisomers?
a. A diastereomer is a nonsuperimposable non-mirror image.
b. An enantiomer is a nonsuperimposible mirror image.
c. Diastereomers have different melting points.
d. Diastereomers rotate plane polarized light in equal but opposite direction.

Which statement is incorrect about L-isoleucine?
a. Its enantiomer is named O-isoleucine.
b. It contains a total of two asymmetric or chiral carbons.
c. It can also be named as (28, 38)-isoleucine using the (R,8) system.
d. Its diastereomer would be named O-alloisoleucine.

An isoelectric amino acid was dissolved in water and the resulting pH was approximately 7.6. What amino acid would possess this property?
a. Alanine
b. Glutamic acid
c. Histidine
d. Lysine

What volume of NaOH is required to adjust the solution of monosodium aspartate to pH 9.8?
a. 1 ml
b. 2 ml
c. 3 ml
d. 6 ml or more

What volume of 2 N Hel is required to completely titrate the 4 mmol of monosodium aspartate?
a. 2 ml
b. 3ml
c. Aml
d. 6 ml or more

Which statement is correct about the peptide ala-ser?
a. Alanine is at the N-terminal of the peptide.
b. There are a total six atoms that lie in the plane of the peptide bond linking alanine to serine.
c. The alpha-carbon of alanine is sp3 hybridized d All the above are correct statements.

What is the product formed from the acid hydrolysis of a simple amide?
a. Acid & base
b. Aldehyde & alcohol
c. Acid & amine
d. Ester & alcohol

The complete acid hydrolysis of the peptide ala-gln-trp-ser would yield:
a. Ala, gin, trp, ser
b. Ala, glu, ser
c. Ala, glu, trp, ser
d. Ala. ser

Fibrous proteins, such as collagen, have which of the following properties?
a. Highly soluble in water
b. Their hydrophilic residues are directed into the interior of the protein
c. Exhibit enzymatic activity
d. Serve structural roles in the cell

Quaternary structure is associated with:
a. The overall shape of a polypeptide chain
b. The sum of the secondary and tertiary interactions
c. Simple proteins with only one subunit
d. The relative orientation of one polypeptide to another polypeptide in a multi-subunit protein.

The information needed to define the structure of a protein is essentially contained in:
a. Amino acid composition
b. Amino acid sequence
c. Secondary structure
d. Tertiary structure.

Insulin is a polypeptide hormone that contains two short polypeptide chains linked by two interstrand disulfide bonds. The most logical order of events to perform in order to sequence this protein would be:
A: The peptides are reduced with mercaptoethanol.
B: The peptides are sequenced using Edman chemistry .
C: The peptides are separated by chromatography techniques. 0: The peptides are alkylated with iodoacetamide.
a. A, D,C, B b.C,A, 0, B
c. C, B, A, 0
d. A, B, C, 0

Which statement is incorrect about the peptide val-asp-trp-asn-ser?
a. This peptide would show a strong absorption band at 280 nm.
b. Reaction with chymotrypsin would yield two peptides.
c. To synthesize this peptide using the solid phase method of Merrifield, the amino acid directly attached to the resin would be serine.
d. After the second round of Edman chemistry using the reagent PITC, the PTH -amino acid residue released would be PTH-asn.

Which statement is incorrect about the reaction of the peptide ser-Iys-asp-trp-cys-metasn-phe-ala with the following reagents?
a. Reaction with cyanogens bromide would yield two peptides.
b. Reaction with trypsin would result in three peptides. The smallest of three peptides would have the highest pi of the three.
c. Reaciton with chymotrypsin would result in the peptides ser-Iys-asp & try-cys-met-Iysasn-phe-ala .
d. Reaction with chymotrypsin would yield a different set of peptides that overlap those obtained with tryspsin

Determine the amino acid sequence of the following oligopeptide from the experimental data below:
The amino acid composition is found the be ala, Iys, phe, met, cys plus some
decompsition products.
2. The peptide has a molecular weight around 700 Da and absorbs at 280 nm.
3. Treatment with carboxypeptidase results in tryptophan and a peptide.
4. CNBr treatment yields a tetrapeptide and a dipeptide.
5. Trypsine digestion produces an amino acid and a pentapeptide with met on the amino end.
6. Chymotrypsin digestion yields a dipeptide and a tetrapeptide.
a. trp-Iys-met-cys-met-ala
b. Iys-met-cys-phe-ala-trp
c. trp-ala-phe-cys-met-Iys
d. Iys-ala-cys-phe-met -trp

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