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1. In a 0.1 m solution of glycine at pH 9.0. what fraction of glycine has its amino group in the –NH3+ form?

1. How much 5 m KOH must be added to 1.0 L of 0.1 M glycine at pH 9.0 to bring its pH to exactly 10.0?

1. In order to have 99% of the glycine in its –NH3+ form, what must the numerical relation be between the pH of the solution and the pKa of the amino group of glycine?

1. Why does ice melt when salt is sprinkled on it?

1. When a piece of paper is wet with water, it tears off easily. But the same paper if soaked in oil doesn’t lose strength. Why?

1. When glucose is added and stirred, the water feels cooler. Why?

1. Metabolic alkalosis is a condition in which the blood pH is higher than its normal value of 7.40 and can be caused, among other reasons, by an increase in [HCO3-]. If a patient has a following blood values, pH= 7.45, [CO2]=1.25 mM, What is the [HCO3-]? The pk1 for the bicarbonate/carbonic acid system is 6.1. How does the calculated Value of bicarbonate compare with the normal value?

1. A polysaccharide of unknown structure was isolated, subjected to exhaustive methylation, and hydrolyzed. Analysis of the products revealed three methylated sugars: 2,3,4-tri-O-methyl-D-Glucose, 2,4-di-O-methyl-D-glucose and 2,3,4,6-tetra-O-methyl-D-glucose, in the ratio 20:1:1. What is the structure of the polysaccharide?

1. The shape of hair is determined in part by the pattern of disulfide bonds in keratin, its major protein. How can curls be induced?

How do depilatory creams remove hair?

1. After proper purification, the Edman reaction was used to sequence a dodecapeptide. The following data were obtained. The C-terminal amino acid is isoleucine; N-terminal amino acid is methionine; peptide fragments are Ala-Ala-Ile, Leu-Arg-Lys-Lys-Glu-Lys-Glu-Ala,  Met-Gly-Leu, and Met-Phe-Pro-Met. What is the sequence of this peptide?

1. Why is pepsin useful as a digestive aid in precooked foods?

1. Why are the most unsaturated fatty acids found in phospholipids in the cis rather than the trans confirmation? Draw the structure of a 16-carbon fatty acid as saturated, trans monosaturated, and cis

1. The melting points of a series of 18-carbon fatty acids are stearic acid, 69.60C, oleic acid, 13.40C; linoleic acid -50C; and linolenic acid, -110 What structural aspect of these 18-carbon fatty acids can be correlated with the melting point? Provide a molecular explanation for the trend in melting points.

1. Why do phenyls and Dettol turn water milky-white when mixed with it?

• Why does a wound on tongue heal faster than those on the other parts of the body?

What is antibiotics factors

The major element that our human body made up of?

Which statistical test is common for

genetics and tests observed data against

the probability of those values?

A. ANOVA

B. standard deviation

C. chi-square testosterone

What is photosynthesis?

Is any hydrogen containing substance that is capable of donating a proton to another?

How many types of Brain do we have?

Explain the role of Mendelian laws in understanding patterns of inheritance, providing specific examples to illustrate the principles of segregation and independent assortment.

Which muscle in the body is not affected by accumulation of lactic acid in the body

𝑊ℎ𝑎𝑡 𝑖𝑠 𝑜𝑠𝑚𝑜𝑠𝑖𝑠

What is tissue 

State mendel's firsts law of inheritance

1. what is counter current machenism? 
2. Drug of choice for placental separation in abortion? 
3. Amount of haemoglobin in each RBC? 
4. Type 1st hypersensitivity induced by which Ig_?
5. 3D sign of pellagra? 

What is cardiac dysrhythmias? What its demographics? What is the causes and epidemiology? What is its pathophysiology ? What is its diagnosis ? The numbers affected by the disease inside the American men and women ? What is the treatments ?

Name the structures and organelles which are common in plant cell, animal cell, and prokaryotic cell.

What is psycho? 

Who is the unit of life ?

Fullname of DNA and RNA ?

What is genotypes

Describe the differences between the wave forms resulting from a reflex stimulus with and without reinforcement. What can you hypothesize about the number of nerve fibers involved in a reinforced reflex as compared to one without reinforcement?

In problems where the concentration driving force is not constant but varies with location, the appropriate driving force to use is the

The ratio of mass transfer by convection/advection to that of diffusion in the same direction is called the number.

Why is it that starch is not digested in the stomach