Directorate of Distance Education (DDE), Sri Venkateswara University, Tirupati (Andhra Pradesh) has issued admission notification for the academic year 2015-16. The details of the courses are given below:
1) PG Courses: MA Telugu, English, Hindi, Economics, History, Political Science and Public Administration, Sociology, Master of Social Work, MLiSc.
2) M.Sc : Physics, Chemistry, Zoology, Botany, Psychology, Mathematics, Computer Science
3) M.Com, M.Com (FM), Executive MBA, MBA
4) BA, B.Sc (BZC, MPC, MSCs, MPE, MECs, MPCs), B.Com, B.Lic.Sc.
5) PG Diploma Courses: Industrial Relations and Personnel Management, Guidance and Counseling.
The study centers are available in the state of Andhra Pradesh only. For more details, candidates can see the website www.svudde.in .
Junior Inter Chemistry - 2 Marks Imp Questions - Organic and Environmental Chemistry
Q: Define "COD". How is it determined?
A: The amount of oxygen required to oxidise organic material present
in polluted water. It is determined with acidified (50% H2SO4)
K2Cr2O7.
Q: Define "Sink" and "Receptor".
A: Sink: The medium which is not only effected by the pollutant but
also remains there. Trees are sinks of CO2.
Receptor: The medium which is badly effected by the pollutant. Eyes
are receptors during traffic jam.
Q: What is "Threshold Limit Value" (TLV)?
A: The permissible level of a toxic pollutant in atmosphere where a
healthy person works in that atmosphere for 8 hours per day without
any adverse effect.
Q: What is "green house effect"?
A: The phenomenon of gradual rise of temperature of earth due to
absorption of infrared radiation of sun rays by the gases like CO2,
CH4, CFCs and O3.
Q: Which oxides cause acid rains? What is its pH value?
A: Acid rains are caused by the oxides NO2 and SO2 (due to formation
of H2SO4, HNO3) when they reacts with O2 & H2O. pH of acid rain water
is below 5.6.
Q: Name two adverse effects caused by acid rains.
A: Decrease of fertility of soil as acid rains dissolve nutrients and
washes away.
Damage of historical monuments like Taj Mahal.
Q: What is "ozone hole"? Where was it first observed?
A: The depletion of ozone layer present in stratosphere is caused by
CFCs. It was first observed over the south pole.
Q: What are the harmful effects caused by ozone layer depletion?
A: Causes skin cancer & cataract.
Damage to fish productivity.
Paints & fibres fade faster.
Decrease of moisture in soil.
Q: What is 'Eutrophication'?
A: Drying of lake due to overgrowth & decay of algae and other plants
& killing of fish (due to lack of oxygen) due to over nutrition of
lake water.
Q: What is "Green Chemistry"?
A: New branch of Chemistry which helps in reduction in the production
& use of harmful pollutants by using existing knowledge of Chemistry
and other sciences.
Q: Explain the principle of Chromatography.
A: The technique in which the mixture of substances is applied on
stationary phase (solid or liquid) and a mobile phase (gas or solvent)
is allowed to move slowly over the stationary phase. The components
are separated from one another in pure form.
Q: What is "Carcinogenicity"? Name two compounds cause it.
A: Cancer producing property by fused benzene rings (3 or more), which
are formed due to incomplete combustion of tobacco, coal and
petroleum.
Eg: 1, 2, - Benzpyrene, 1, 2 - Benzanthracene
A: The amount of oxygen required to oxidise organic material present
in polluted water. It is determined with acidified (50% H2SO4)
K2Cr2O7.
Q: Define "Sink" and "Receptor".
A: Sink: The medium which is not only effected by the pollutant but
also remains there. Trees are sinks of CO2.
Receptor: The medium which is badly effected by the pollutant. Eyes
are receptors during traffic jam.
Q: What is "Threshold Limit Value" (TLV)?
A: The permissible level of a toxic pollutant in atmosphere where a
healthy person works in that atmosphere for 8 hours per day without
any adverse effect.
Q: What is "green house effect"?
A: The phenomenon of gradual rise of temperature of earth due to
absorption of infrared radiation of sun rays by the gases like CO2,
CH4, CFCs and O3.
Q: Which oxides cause acid rains? What is its pH value?
A: Acid rains are caused by the oxides NO2 and SO2 (due to formation
of H2SO4, HNO3) when they reacts with O2 & H2O. pH of acid rain water
is below 5.6.
Q: Name two adverse effects caused by acid rains.
A: Decrease of fertility of soil as acid rains dissolve nutrients and
washes away.
Damage of historical monuments like Taj Mahal.
Q: What is "ozone hole"? Where was it first observed?
A: The depletion of ozone layer present in stratosphere is caused by
CFCs. It was first observed over the south pole.
Q: What are the harmful effects caused by ozone layer depletion?
A: Causes skin cancer & cataract.
Damage to fish productivity.
Paints & fibres fade faster.
Decrease of moisture in soil.
Q: What is 'Eutrophication'?
A: Drying of lake due to overgrowth & decay of algae and other plants
& killing of fish (due to lack of oxygen) due to over nutrition of
lake water.
Q: What is "Green Chemistry"?
A: New branch of Chemistry which helps in reduction in the production
& use of harmful pollutants by using existing knowledge of Chemistry
and other sciences.
Q: Explain the principle of Chromatography.
A: The technique in which the mixture of substances is applied on
stationary phase (solid or liquid) and a mobile phase (gas or solvent)
is allowed to move slowly over the stationary phase. The components
are separated from one another in pure form.
Q: What is "Carcinogenicity"? Name two compounds cause it.
A: Cancer producing property by fused benzene rings (3 or more), which
are formed due to incomplete combustion of tobacco, coal and
petroleum.
Eg: 1, 2, - Benzpyrene, 1, 2 - Benzanthracene
Inter Second Year Zoology - 2 Marks Important Questions from Unit 4
Q: What is acromegaly? Name the hormone responsible for it.
A: a. Acromegaly is a disorder resulted due to hyper secretion of
somatotropin (of pituitary). It is characterised by elongation of
bones of jaw, limbs, thickened nose, lips, eye lids and wide finger
tips (gorilla like appearance).
b. Somatotropin.
Q: Name the gland that increases in size during childhood and
decreases in size during adulthood. What important role it play in
case of infection?
A: a. Thymus gland
b. It secretes thymosins that are necessary for differentiation of T -
lymphocytes, which provide cell mediated immunity in case of
infections.
Q: Distinguish between diabetes mellitus and diabetes incipidus.
A: a. Diabetes mellitus is caused due to the deficiency of Insulin. It
is characterised by loss of glucose through urine and formation of
ketone bodies.
b. Diabetes incipidus is caused due to the deficiency of vasopressin. It is
characterised by loss of more water through urine.
Q: What are androgens? Which cells secrete them?
A: a. Male sex hormones testosterone are called androgens.
b. Leydig cells of testes.
Q: Define immunity and immune system.
A: a. Ability of the body to resist or eliminate harmful foreign microbes and
their products is known as immunity.
b. The network of organs, cells and proteins that protect the body
from harmful microbes and their products is known as immune system.
Q: Colostrum is very much essential for new born infants. Justify.
A: a. Colostrum is the first milk produced from mother after child birth.
b. It contains antibodies like IgA which provide immunity to the new born.
Q: Explain the mechanism of vaccination or immunisation.
A: Vaccination is the process in which inactivated or weakened
pathogens or antigenic proteins of the pathogen are inoculated into
the body of the host. They initiate the production of appropriate
antibodies in the host.
Q: What are autoimmune disorders? Give two examples..
A: In some cases, our own immune system fails to recognise some of our
own body proteins and treats them as foreign antigens.
Hence the immune system attacks on our own tissues. This leads to
serious diseases called autoimmune disorders.
Q: Differentiate between perforins and granzymes.
A: a. Perforins are the enzymes (produced by cytotoxic T - cells)
which form pores to the cell membranes of infected cells.
b. Granzymes are the enzymes (produced by cytotoxic T - cells) which
enter the infected cells through the pores formed by perforins and
activate certain proteins that destroy the infected cell.
Q: Which hormone is called anti diuretic hormone? Write the name of
the gland that secretes it.
A: a. Vasopressin
b. Neurohypophysis of Pituitary.
A: a. Acromegaly is a disorder resulted due to hyper secretion of
somatotropin (of pituitary). It is characterised by elongation of
bones of jaw, limbs, thickened nose, lips, eye lids and wide finger
tips (gorilla like appearance).
b. Somatotropin.
Q: Name the gland that increases in size during childhood and
decreases in size during adulthood. What important role it play in
case of infection?
A: a. Thymus gland
b. It secretes thymosins that are necessary for differentiation of T -
lymphocytes, which provide cell mediated immunity in case of
infections.
Q: Distinguish between diabetes mellitus and diabetes incipidus.
A: a. Diabetes mellitus is caused due to the deficiency of Insulin. It
is characterised by loss of glucose through urine and formation of
ketone bodies.
b. Diabetes incipidus is caused due to the deficiency of vasopressin. It is
characterised by loss of more water through urine.
Q: What are androgens? Which cells secrete them?
A: a. Male sex hormones testosterone are called androgens.
b. Leydig cells of testes.
Q: Define immunity and immune system.
A: a. Ability of the body to resist or eliminate harmful foreign microbes and
their products is known as immunity.
b. The network of organs, cells and proteins that protect the body
from harmful microbes and their products is known as immune system.
Q: Colostrum is very much essential for new born infants. Justify.
A: a. Colostrum is the first milk produced from mother after child birth.
b. It contains antibodies like IgA which provide immunity to the new born.
Q: Explain the mechanism of vaccination or immunisation.
A: Vaccination is the process in which inactivated or weakened
pathogens or antigenic proteins of the pathogen are inoculated into
the body of the host. They initiate the production of appropriate
antibodies in the host.
Q: What are autoimmune disorders? Give two examples..
A: In some cases, our own immune system fails to recognise some of our
own body proteins and treats them as foreign antigens.
Hence the immune system attacks on our own tissues. This leads to
serious diseases called autoimmune disorders.
Q: Differentiate between perforins and granzymes.
A: a. Perforins are the enzymes (produced by cytotoxic T - cells)
which form pores to the cell membranes of infected cells.
b. Granzymes are the enzymes (produced by cytotoxic T - cells) which
enter the infected cells through the pores formed by perforins and
activate certain proteins that destroy the infected cell.
Q: Which hormone is called anti diuretic hormone? Write the name of
the gland that secretes it.
A: a. Vasopressin
b. Neurohypophysis of Pituitary.
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