1. Describe the molecular biology and biochemistry.

2. State the importance of studying the biological phenomena.

3. Distinguish between prokaryotes and eukaryotes.

4. List the similarities between prokaryotes and eukaryotes.

5. State the functions of the following cell components:

a) cytosol

b) mitochondria

c) chloroplast

d) vacoule

6. Explain about van der walls interaction. Give an example to support your explanation.

7. Why CH4 molecule is not capable for hydrogen bond?

8. Discuss the properties of water that make it a good solvent and buffer.

9. Describe about amphipathic.

10. What is chalatherate?

11. Explain how amphiphiles form micelles, membrane bilayers and vesicles.

12. Differentiate between ionization of water and water concentration.

13. Calculate the following molarity of solutions:

a) containing 72.9 grams of HCl in enough water to make 500 mL of solution?

b) containing 11.522 grams of KOH in enough water to make 350 mL of solution?

14. What is pH of 0.0002 M HI solution? What will be pH if 1 mL of the above was added to 999 mL of pure water?

15. What is pH of mixture prepared by mixing 20 mL 0.07 M NaOH and 13 mL 0.09 M HCl?

16. Calculate pH of 1 M solution of nitrous acid, pK_a=3.37.

17. Calculate pH of 0.001 M solution of benzoic acid, pK_a=4.19.

18. 0.1 M solution of weak acid has pH=4.0. Calculate pK_a.

19. 20 mL of 0.1 M solution of weak acid was mixed with 8 mL 0.1 M solution of NaOH. Measured pH was 5.12. Calculate pK_a.

20. Calculate the pH of a 0.2M solution of ammonia. K_a=5.62×10^-10.

21. Calculate pH of 0.01 M aniline hydrochloride. Aniline pK_b=9.4.

22. Calculate pH of 0.1 M potassium hydrogen oxalate. pK_a1=1.25, pK_a2=4.27.

23. Calculate pH of solution prepared from 0.1 mole of formic acid and 0.02 mole of NaOH diluted to 1L. pK_a=3.75.

24. You have 100 mL of 1 M ammonia solution (pK_a=9.25). What volume of 1 M hydrochloric acid is needed to prepare buffer with pH=9.5?

25. What will be pH of a 100 mL buffer solution containing 0.064 M of acetic acid and 0.036 M of sodium acetate, after addition of 1 millimole of the hydrochloric acid? pK_a=4.75.

26. Explain what happen to man who have an acidic blood fluid in his body.

Jones Knight is a small copper mining company with operations in Arizona, South America, and Montana.  It is listed on NASDAQ and is preparing to do a public offering for $50,000,000.  Which of the following exemptions could Jones Knight use in order to avoid registration?​

3. Calculate the load carrying capacity and percentage of reinforcement for a short rectangular column of
cross section dimension 280 mm x 500 mm is reinforced with 4 bars of 25 mm diameter, 2 bars of 20
mm diameter and 2 bars of 12 mm diameter. Use M30 grade concrete and Fe 500 grade steel. Also
design a 4 legged ties necessary for this section.

The manufacturer of a new racecar engine claims that the proportion of engine failures due to overheating for this new engine, (p1), will be no higher than the proportion of engine failures due to overheating of the old engines, (p2). To test this statement, NASCAR took a random sample of 225 of the new racecar engines and 215 of the old engines. They found that 27 of the new racecar engines and 16 of the old engines failed due to overheating during the test. Does NASCAR have enough evidence to reject the manufacturer's claim about the new racecar engine? Use a significance level of α=0.05 for the test.

Step 1 of 6 : State the null and alternative hypotheses for the test. ep 1 of 6 : State the null and alternative hypotheses for the test

Step 2 of 6 : Find the values of the two sample proportions, pˆ1and pˆ2. Round your answers to three decimal places

Step 3 of 6 : Compute the weighted estimate of p, _p. Round your answer to three decimal places

Step 4 of 6 : Compute the value of the test statistic. Round your answer to two decimal places

Step 5 of 6 : Find the P-value for the hypothesis test. Round your answer to four decimal places. Step 6 of 6 : Make the decision to reject or fail to reject the null hypothesis

There are numerous empirical studies that provide evidence that the birth of children influences both a mother’s and father’s labor force participation. Use the theory of labor force participation of individuals to explain this relationship. Do you think that the birth of a child will have a positive or negative effect on the mother’s labor force participation? What about on the father’s labor force participation?

With respect to the dividend discount model (constant and nonconstant forms), net present value model, FCF enterprise value model, etc., it has been suggested that the complexity is not the actual formula but the inputs. Use the constant growth dividend discount model (P = D / r – g) to explain why—and what about—the complexity of the inputs is key to the analysis.

With respect to the dividend discount model (constant and nonconstant forms), net present value model, FCF enterprise value model, etc., it has been suggested that the complexity is not the actual formula but the inputs. Use the constant growth dividend discount model (P = D / r – g) to explain why—and what about—the complexity of the inputs is key to the analysis.

1. Gyms often use pricing strategies. Suppose a yearly membership to the gym costs $300, a monthly pass costs $40, and a daily pass costs $10. A. Explain the rationale for this pricing strategy. B. What must be true about the customer’s price elasticity of demand in each group? Who might be the “typical” customer in each group?

In a study of red/green color blindness, 1000 men and 700 women are randomly selected and tested. Among the men, 92 have red/green color blindness. Among the women, 19 have red/green color blindness. Test the claim that men have a higher rate of red/green color blindness.
The test statistic is
The p-value is