BIOLOGY
F.M- 100: Time 2 hrs
1) Distinguish between the following pairs of terms: (write 1 point only). (2 x 6)
a) feeding and nutrition
b) dead and living things
c) anabolism and catabolism
d) entomology and ichthyology
e) centrosome and chromosome.
f) prokaryotic cell and eukaryotic cell
2) Mention if the following statements that true or false : (2x 6)
a) prokaryotic cells have larger ribosomes.
b) Eukaryotic cells have mitochondria.
c) Amoeba is an example of Prokaryotes.
d) Bacteria have no nuclear membrane but possess chloroplasts.
e) Plants do not respire whereas animals do.
f) Animal show movement while the plants do not.
g) Phloem cells carry manufactured food from leaves to other parts.
h) The sclerenchyma consists of actively dividing cells.
i) Cartilage has no blood vessels or the nerves in it.
j) Perikaryon is the nucleus of a nerve cell.
k) Axons of nerve cells are very long.
3) Write the location and function of the following terms : (2x 6)
a) meristematic tissue
b) parenchyma tissue
c) lymph
d) ribosomes
e) ciliated epithelium
f) nectaries
4) Name the following : (2x6)
a) muscles present in the iris of the eyes.
b) The science which aims to improve the human race.
c) The cell part which is composed of cellulose.
d) The plant that follows mound layering.
e) An example of neuter flower.
f) Extra whorl present in hibiscus flower.
g) a polyadelphous flower.
h) The plant cell lacking the cell wall, that is used in hybridization.
i) The process by which a new varieties is developed through cross pollination.
j) the portion of the plant which is used in the micropropagation.
k) Kinds of cells found in salivary gland
l) The category of plant tissues that have lost their ability to multiply.
5) Define the following terms : (2 x 6)
a) Callus
b) biotechnology
c) heterostyly
d) placenta
e) grafting
f) chlorenchyma
6) a) List the tissues found in human heart.
b) Can you consider a cluster of eggs as a tissue ?
c) it is said that the protoplasm cannot be analysed chemically. why ? (2+4+4)
7) a) can you think of any two movements occurring in our body while you are asleep ?
b) In what ways is a hen's egg living as well as a non living ?
c) Make a list of any four dead things you use. Name their source organisms . (2+4+4)
8) a) Mention any two contrivances in flowers which favour cross pollination.
b) What is the function of the pollen tube? Explain it with the help of a diagram.
c) Write any two characteristics of water pollinated flower. (2+4+4)
9) a) what is Manoeciuous plant? give example.
b) what is Bract ? explain with example.
c) draw the generalized arrangement of parts of a bisexual flower. Label it. (2+4+4)
PHYSICS (Final)
Marks-80
(Attempt all the questions of section A and section B)
SECTION A (40 marks)
1) Fill in the blanks: (1 x 10= 10
a) If the weight of a body is equals to the buoyant force, it will ___ in the fluid.
b) Atmospheric pressure___as we move from sea level to higher altitude.
c) Biomass can be converted in to gaseous fuel called___.
d) The breaking up the nucleus of an atom into smaller nuclei is called ____.
e) ____ is a sure test for electrification.
f) Two unlike charges ___'each other.
g) A force produced by rubbing a combination against dry hair is called___.
h) An electromagnet is a ____magnet.
i) The current obtained from a battery or a cell is ___ current.
j) There is a very large____ around the earth.
2) Rewrite the following statement correctly (1 x10=10)
a) Objects appear heavier when kept immersed in a fluid.
b) Pressure exerted by the liquids on the sides of the containing vessel is called Buoyant force.
c) The problems using solar energy directly is that it is cool.
d) Renewable source of energy are also called irregular sources of energy.
e) Kighting conductor is made of ebonite .
f) Two uncharged bodies when rubbed together get charged because of induction.
g) Bromin is a non metal which is a good conductor of electricity.
h) Permanent magnets are used in electrical bell.
i) A step down transformer is used to increase the magnitude of direct current.
j) The magnetic lines of force around a current carrying straight conductor are straight line.
(Rewrite correctly only the underline words)
3) Differentiate between the following : (2x 10=20)
Write the main points of differents only.
a) alternating current and direct current.
b) magnet and electromagnet.
c) Step-up transformer and step down transformer.
d) Conductor and insulator.
e) A glass rod rubbed with silk cloth and an ebonite rod rubbed with fair.
f) Renewable source of energy and non renewable energy.
g) Tidal energy and geothermal energy.
h) Fission and fusion.
i) conduction and convection
j) Solids & liquid on the basis of arrangement of molecules.
Section - B (40 Marks)
4) Give reason for the following: (2 x5=10)
a) Water has a tendency to form a spherical droplets .
b) A piece of iron sinks in water but large ships made up of iron float on water .
c) It is necessary to collect sunlight over a large areas to utilise its energy.
d) A lightning conducter is fixed at the top of a tall building.
e) Charged particles exert a force on one another.
5) Define these terms:- (2 x5= 10)
a) Electrostatics
b) electromagnetic induction
c) Surface tension
d) State the Pascal 's Law
e) State Archimedes Principle
6) a) Draw a labelled diagram of gold leaf electroscope.
b) Explain why a gold leaf electroscope has a glass case.
c) Describe an experiment show that two positively charged bodies repel each other.
d) How does lightning takes place ? (3+2+3+2=10)
7) a) Give any three applications of electromagnets.
b) With the help of label diagram, explain the working of an electric bell.
c) How can the magnetic field of a current solenoid be decreased? (3+5+2=10)
