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Seminar 2012 - Ladies’ College (Grade 10 & Grade 11) – Colombo 07

1. Chloroplasts, central vacuoles & cell wall are found only in …………………………………….

2. Cell wall, vacuoles & cell sap are ……………………………………………….

3. Cell wall, cell membrane, cytoplasm, nucleus, chloroplasts & central vacuoles seen by using …….

4. Proteins are produced by ………………………………………………………………. 5. Proteins are transported by …………………………………………………….. 6. Aerobic respiration to produce energy is done in the ……………………………………………………. 7. The power house of the cell is the …………………………………………………………….

8. Products of aerobic cellular respiration are ………………………………………………………….

9. ……………………………………... is totally permeable, non living, provide mechanical support

10. ………………………………………................... is selectively permeable, living & made of proteins & lipids

11. ……………………….………………. is the most prominent organelle and control all the cellular activities.

12. Upper & lower ………………………………….do not have chloroplasts and protect inner cells

13. In a leaf palisade parenchyma, spongy parenchyma & guard cells contain ………………………………….

14. …………………………………… parenchyma are elongated, have more chloroplasts but no inter cellular air spaces.

15. …………………………………… parenchyma are irregular in shape, have less chloroplast and have inter cellular air spaces.

16. ………………… cells are kidney shape and control the size of the stomata and reduce transpiration.

17. Transpiration & gas exchange occur through the ………………………………………………

18. Transpiration and gas exchange are due to …………………………. and therefore are passive process.

19. Bamboo, paddy, sugar cane, grass, arecanut, wheat are …………………………………………..plants

20. Monocotyledon plants & dicotyledon plants are the flowering plants - ………………………………………

21. One cotyledon, fibrous root, unbranched stem, cylindrical shaped stem, long narrow leaves, parallel venation, three or multiples of three petals are the features of ……………………………………

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22. Two cotyledons, tap root, branched stem, conical shaped stem, road broad leaves, reticular venation, five or multiple of five petals are the features of ………………………………….………..

23. Cycas & pinus plants are non flowering plants having seeds………………………………………….……………..

24. Seeds are covered with a fruit in ………………………………… and seeds are not covered in ………………..

25. Marchanchtia (liverworts), poganatum (mosses) – bryophytes Salvinia, ferns – pterophytes are non flowering plants without ………………………………

26. Animals who are diploblaststic, radial symmetry, found in fresh & sea water belong to ……………..

27. Jelly fish (marine) belongs to ……………………………… (opened umbrella or bell shaped) - floats

28. Hydra (fresh water) & sea anemone belong to ……………………………….. – sedimentary life

29. Animals who are triploblastic, segmented body, bi lateral symmetry belong to ………………………

30. Leech, earth worm, nereis belongs to …………………………………….

31. Un-segmented body, muscular foot, some have a calcium carbonate hard shell……………………..

32. Snail, slug, octopus, loligo (cuttle fish) belong to …………………………………………….

33. Animals having segmented body, exoskeleton, joint appendages belong to …………………………..

34. Prawns, scorpions, crabs, spider, centipedes, millipedes and insects belong to ……………………………

35. Animals having 2 chambers of heart (1 atrium & 1 ventricle) belong to ……………………………………….

36. Animals having 3 chambers of heart (2 atrium & 1 ventricle) belong to ………………………………………

37. Animals having 4 chambers of heart (2 atria & 2 ventricles) belong to ………………………………………..

38. Pisces, amphibian & reptiles are ………………………………………..… since their body temperature changes according to the environment.

39. Aves & mammals are …………………………………………….. since their body temperature does not change according to the environment.

40. Respiratory organ of pisces……………………………., amphibian……………………………………………………….. reptilian, aves & mammals……………………………………………

41. Shark & skates skeleton is made up of only ………………………………………………………….

42. Seer, salmon, sea horse skeleton is made up of mainly ……………………………………….





43. Body is covered with scales, swim with ……………………….. respirate with …………………….. are belong to ……………………………………..

44. Toad, frog salamander belong to ………………………………………………………..

45. Lizard, snake, crocodile, snakes tortoise, turtle gecko belongs to ………………………………..

46. Ostrich (………………………………..), eagle, duck, humming bird (……………………….) belong to ………

47. Body is covered with feathers, upper limbs turned into feathers, bones are hollow ………………

48. Give birth to young ones, skin has hair, having mammary glands, having ear lobes ………………….

48. Platypus & ant eater ……………………………….

49. Whale, bat, platypus, ant eater, dolphin, cat, man belong to ……………………………………………………

50. Carlos Linnaeus introduce the binominal nomenclature and the first natural …………………………..

51. Modern natural classification & the evolution was introduces by Charles………………………………..

52. Canis familliaris - ………………………………………………….

Felis domestica - ………………………………………………….

Nymphaea stellata -…………………………………………….

Mesua nagassarium - ………………………………………….

53. Leprosy, pneumonia, tuberculosis, tetanus, typhoid, cholera, diphtheria, gonorrhoea and syphilis

are caused due to ……………………………………………………………………..

54. Write the function of the following bacteria

Acetobactor aceti - ………………………………………………………………………….. Escherikia coli - ……………………………………………………………………………….

55. All the algae are - …………………………………………………………………………...

56. The cell wall of Chlamydomonas, Ulva and Spirogyra are made up of …………………………………………

57. All the fungi are - ……………………………………………………………………………

58. A common feature of algae and fungi are …………………………………………………………………………………….





59. The cell wall of yeast, mushroom & pennicilium is made up of . ………………………………………………….

60. Yeast is a ……………………………cellular ………………………….. used in ………………………………………………....

61. Protozoa & bacteria are …………………………………………………………

62. State the organelle used in for locomotion in the following protozoa

Amoeba - ………………………………… Euglena - …………………………… Paramecium - ………………….

63. Viruses do not have enzymes. They do not…………………………………… But they ……………………………..

64. Leaf curling disease in chilies, AIDS, common cold, influenza, chicken pox, measles and dengue

are caused by……………………………………………

65 A virus contain DNA or RNA in the middle and a ……………………………………….……. around it.

Plant Tissues

1. Parenchyma & collenchymas are …………………………… but sclerenchyma is.. …………………………………

2. Cell wall of ………………………………..………………..………..are thin and made up of cellulose

3. Cell wall of ………………………………….... is thickened at the corners and made up of cellulose

4. Two types of ……………………………………….. tissues are fibres and stone cell (pears, coconut shell)

5. Lignin is deposited on the cell wall of ……………………………………………..

6. ……………………………………………….transports water and minerals and provide mechanical strength.

7. ……………………………… is made up of tracheids, vessel elements, xylem parenchyma & xylem fibres

8. Only ………………………..……………………… is living

9. Vessel elements conducts ……………………………………………………….

10. Food is tranlocated as …………………………………. in phloem tissue

11. ………………………………….. unit of phloem is the sieve tubes and the adjacent companion cells





Blood Tissues

1. Volume of blood in a normal healthy adult is …………………………………..

2. Function – Transport substances (nutrients, gases, hormones, enzymes, ………………………………………….), immunity and …………………………………………………………

3. Blood plasma is ……………………….colour and help to maintain the body temperature at (37°C or 98.4°F)

Blood Cell Erythrocyte Leukocyte Thrombocyte Produced in bone marrow one marrow Life span - 5 - 7days Destroyed in - - Shape round irregular Nucleus one no Function immunity clotting of blood Count 7,000 – 11,000 per cm3 150,000 – 400,000 Diseases leukemia Dengue

4. …………………………………………. has haemoglobin(Haematine= iron and Globin=protein)

5. RBC : WBC = ………………………………….

6. During infections, the WBC will…………………………………… Therefore the ratio will reduce.

7. During dengue the ……………………………………… will reduce. Therefore internal & external bleeding.

8. Anaemia =Less …………………………………… than normal.

9. Anaemia can be due to iron deficiency, …………………………, excessive bleeding, malaria.

10. Granulocytes are …………………………………………., eosinophils & basophiles

11. …………………………………….. have a multi-lobed nucleus. (highest percentage 65% - 70%)

…..…………………………………. have a bi-lobed nucleus

……………………………………… have a large irregular shaped nucleus.

……………………………………… have a large nucleus

…………………………………….. have a bean shaped nucleus (largest WBC)





Muscle tissue – move body parts (……………………………………………………)

Muscle Skeleton Smooth Cardiac Stripes un-striated striated Branching Un-branched branched Action Involuntary involuntary Nucleus uni-nucleus uni-nucleus Shape spindle Speed slow rhythmatic Found at blood vessels, digestive

track, bladder heart

1. Skeletal muscles store …………………………………………….. and contain a large amount of …………………………

Epithelial tissue – Lining of a …………………………………….. externally and internally

Epithelium Shape Function Found flat & thin blood capillaries,

alveoli, Bowman’s capsule

cubed glands elongated stomach - anus have hair on the surface trap & move particles nasal cavity to bronchii changes Allow stretching bladder, male urethra Many layers, bottom

layers – round, living top layers are flat and non living

Skin, buccal cavity

Photosynthesis

6 CO2 + 6 H2O ------------------------------> …………………………………… + 6 H2O

External factors – CO2, H2O, …………………………………………….

Internal factor - …………………………………………..

Main product - ……………………………………………

By product - ………………………………………………..

……………………………. is produced. Translocated as ……………………………………. Stored as ……………………………..





Advantages of photosynthesis

1. Produce ……………………………………… to all the organism in the world

2. Produce ………. to respirate and maintain the ……… layer which prevents the entry of ……… rays.

3. Reduce ………………………………………. and reduce global warming

Identifying starch

1. Add brownish yellow ………………………….... If it become blackish blue then it contains …………………

Proving that the factors are necessary

1. CO2 can be absorbed by ................................ or …………………………….

2. Black papers do not allow ………………………….. to go through

3. …………………….. is highly flammable. Hence do not hold directly to the …………………….

4. In a normal lab we cannot prove that the …………………………….. is necessary for photosynthesis

5. When NaHCO3 is added, the aquatic plants produce more O2 due to the more availability of………

Adaptations to do photosynthesis

1. Laves are flat and thin – get more ……………………and ………………. to all the cells

2. Veins are distributed. Provide …………………. to the cells

Movement of substances

1. Movement of O2 , CO2 and ………………………….. through the stomata - …………………………………………

2. Movement of soil water into ………………………, movement of water from the large intestine to the

……………………………………, movement of water from the Henley’s loop into …………………………….

are due to ……………………………………………..

3. Absorption of soil minerals into…………………………….., absorption of glucose from the intestinal

lumen into the ………………………………………….., absorption of glucose from the Henley’s loop into

the ………………………………………………… are due to …………………………………………………..

4. Ascent of sap and …………………………………………… are called mass flow.





5. …………………………………… are elongations or extensions of the epidermis of the root.

6. When a banana plant is cut the oozing of fluid is due to the ……………………………………………………….

7. Guttation is also due to …………………………………………………………

8. Movement of water and …………………………….. from root hairs to leaves, through the ………………..

tissue is called ………………………………………………….

10. Factors affecting the …………………………………………. are (i) Root pressure (ii) Capillary force (iii) ………………………………………..…… (main factor) (iv) Adhesion (attraction between xylem wall and water molecules) (v) Cohesion (attraction between two water molecules)

11. Diffusion of ………………………………………..from the inter cellular air spaces to the …………………………

through the stomata is called …………………………………….

12. Transpiration mainly occur through the …………………………………… epidermis as it has more …………

13. White colour anhydrous copper sulphate becomes blue colour blue colour due to …………………….

14. Blue colour cobalt chloride becomes pink colour due to ……………………………………………………………..

15. More temperature = ………………… transpiration more speed of wind = ………………… transpiration more light intensity = ………………… transpiration more soil water = ………………… transpiration more humidity = ………………… transpiration more atmospheric pressure = ………………… transpiration

16. Apparatus used to measure the rate of ………………………………… is the ………………………………………

17. Two factors that has to be considered when using the ………………………………….. (i) cut the twig - …………………………………………….. (ii) fix the twig to the potometer - ………………………………………….

18. Two readings that have to be taken when measuring the …………………………………………………………

The distance travelled by the bubble Rate of transpiration = ---------------------------------------------------- The time taken by the bubble to travel





1. Thick cuticle eg ………………………………………………… 2. Leaves reduced to thorns …………………….

3. Sunken stomata eg…………………………………………. 4. Fleshy leaves………………………………………..

5. Falling of leaves eg ………………………………………... 6. Having milk like substances…………………

7. Rolling of leaves eg………………………………………...

Advantage of the transpiration

1. ……………………………… of the plant surface

2. Assist the ……………………………………………..

Guttation Transpiration Water droplets Water and minerals Through hydathodes At night Due to root pressure Short plants Wet marshy soil No adaptations to reduce Blood

1. Universal donor - …………………………….. Universal recipient - ……………………………….

2. Antibodies provide …………………………………….

3. Skin, mucous, tears, responses to inflammation provide ……………………………..

Clotting mechanism

(i) ……………………….come into contact with a wounded blood vessel.

(ii) Platelets will release ……………………

(iii) Thromboplastin, …..…………, prothrombin will form ………………………..

(iv) Thrombin will react with fibrinogen and form ………………….

(v) Fibrin will make a network and ……………………….. will trap in it and form a clot

* …………… citrate or ………… oxalates solution prevents clotting of blood by removing the Ca+2





Arteries Veins Thick walls Has elastic tissue No valves Takes blood away from heart Oxygenated blood except in pulmonary artery Ends with capillaries

Heart

1. Heart muscles are supplied by the ………………………………………………………………………..

2. Lub sound is due to the closing of ………………………. values during ventricular …………………………….

3. Dub sound is due to the closing of ……………………... values during ventricular …………………………….

4. Thickest wall is found in the …………………………………………..

6. Highest concentration of the glucose is found in the ……………………………………………………

7. Highest concentration of the O2 is found in the …………………………………………………………..

8. RV PA lungs PV LA is called the ……………………………………………………………….

9. LV aorta organs SVC and IVC RA is called the …………………………………………………..

10. Before blood flows back to the same location, it travels through the heart twice due to two

circulations namely …………………………………………….. and …………………………………………………………..

is called …………………………………………………………………………..

11. Since blood travels through a closed set of blood vessels namely arteries, capillaries and …………,

the blood circulation is called a ………………………………………………….

12. In the tissues, the blood except …………………………………… and ……………………………. get filtered into

the inter cellular spaces and form the …………………………………………………………..(ICF) or …………………

13. Part of ICF get into the …………………………………….. and this fluid is now called the ………………………..

14. …………………………………… flows towards the heart due to muscle pump and ………………………………...

15. The two main lymphatic vessels are ………………………………. and ……………………………………………………





Digestive System

1) The enzyme found in human saliva…………………………..

2) Starch (sweet less, water insoluble polysaccharide) is converted to sucrose

(sweet taste, water soluble disaccharide) by……………………………

3) Starch digestion begins at…………………………………..

4) The only chemical digestion occur in the bucal cavity ……………………………………………

5) Type of digestion occur in the bucal cavity……………………………………..

6) Base, sides and tip of the tongue are sensitive to……………………………………………………

7) Tongue is made up of …………………………………………muscle

8) Muscles found in the oesophagus …………………………………..

9) Epithilium found in bucal cavity and oesophagus =…………………………………………………

10) The process that moves the food forward in the digestive tract is………………………

11) The contents in the gastric juice …………………………………………………………………………..

12) Conversion of pepsinogen (inactive pro-enzyme) to pepsin (active enzyme) and

destroying the bacteria in the food is done by ……………………………………………….

13) The pH value of the stomach ……………………………….

14) Milk coagulation is done by………………………………………..

15) Protein is converted to polypeptides by ………………………………………………..

16) Protein digestion starts at the ……………………………………

17) Inflammation of the mucus membrane in the stomach is called…………………

18) Not having food on time, high mental stress, pain killers, consumption of

alcohol and smoking will increase ………………………………………

19) Helicobacter pylori bacteria causes …………………………………………………….

20) Bile (not an enzyme) is produced, stored and brought to duodenum

respectively by ..................….

21) Emulsification of lipids is done by…………………………………………

22) Amylase, lipase and tripsin is found in the ……………………………………….

23) Conversion of emulsified lipids into fatty acids and glycerol is done by………………

24) The lipid digestion occur in the ………………………………..

25) Conversion of proteins into polypeptides is done by…………………………………





26) Conversion starch into sucrose is done by…………………………………………

27) Polypeptidase, sucrose, lactase and maltase is found in the ……………………………..

28) The structures found in the ileum which are specialized to absorb food……………..

29) Glycerol and fatty acids are absorbed into ………………….......

30) Glucose and amino acid are absorbed in to ………………………………………

31) Epithilium found in the above structures………………………………….

32) Adaptations found in the above structures to absorb digested food efficiently

are………………………………………………………………………………………………………………….

33) 90% of water in the food, minerals and vitamins are absorbed into blood is

done in the …………………………………….

34) Saprophytic bacteria are found in the …………………………………

35) These bacteria produce……………………………………………………..

36) Faeces mainly contain water & ……………………………….

37) Faeces is not …………………………………………….

38) Consuming less fibres, confine a person to one place (paralysis), dry climate,

pregnancy, less intake of water, pain killers, nervous disorders will cause…………

39) Gall-stones are produced in the …………………………………………

40) It is made up of bile, phosphor-lipids and ………………………………………..

41) Due to the obstruction in the 3 veins which take blood away from anus will

cause ……………………………………………………

42) Parasitic worms cause retarded growth and ……………………………

43) Filaria worms which cause elephantiasis enter man through …………………………….

44) These worms live in the lymph nodes and obstruct the …………………………………….

Respiratory system

1) Inspiration is an ………………………… process, since it uses energy.

2) During inspiration, diaphragm ………………………………… and moves down, intercostals muscles contact

and moves the rib cage upwards and outwards.

3) Expiration is a ………………………………. Process, since not use energy

4) During expiration, diaphragm …………………………….and moves up, intercostals muscles relax and moves

downwards and inwards.





5) ……………………………… has ‘C’ shaped cartilages. They prevent …………………. getting collapsed. (getting

closed).

6) ……………………… is produced behind the trachea

7) There are 12 pairs of ……………………. and 11 pairs of inter costal muscles

8) Adaptations to have an efficient gas exchange in the lungs

(i) Alveoli have a ……………………………………………

(ii) Have a large net work of ………………………………………………

(iii) Alveoli has a thin layer of ………………………. where gases can dissolve

Excretory system

1) ……………………. is not an excretory substance

2) The largest excretory organ is the ……………………………..

3) The main excretory organs are the ………………………………….

4) ……………………………….. become urea in the ………………………………….

5) ……………………….. enters kidney through the

HV IVC RA RV PA lungs PVLALVAortalRAkidney

6) Functional unit of the kidney is the …………………………………

7) since the diameter of the ………………………….. is smaller than the ……………………… there will be high

pressure in the …………………………………..

8) Therefore everything in the blood except ……………………………… and …………………….. get filtered from

the …………………………… into the Bowman’s capsule.

9) At the Henley’s loop ………….. of H2O and …………. glucose will get re-absorbed into the blood

capillaries.

10) The main constituent of urine is the …………………………………….

11) 95% =………………….. 2% = ………………….. 2% = …………………………. 1%=……………….

12) ……………………. is due to calcium oxalates.





1) Electrons

2)

are discovered by ……………………………………………………………………

Protons

3)

are discovered by ………………………………………………………………………

Neutrons

4) The

are discovered by ……………………………………………………………………

mass of an electron

5) The

is ………………………………………………………..……………

mass of a proton

6) The

is …………………………………………………………………………..

mass of a proton

7) The

is …………….….times the mass of an electron

plum pudding model

8) The

was proposed by ……………………………………………

planetary model

9) Max. No. of electrons in the

was proposed by ………………………………………………………………

3rd (M) and 4th (N) energy levels are respectively

……………………………

10) Max. No. of electrons in the last energy levels

11) The

of a free atom ……………………

number of protons

12) The

of an atom is called ……………………………………………..…

sum of protons and neutrons

13) ……….. = Mass No – Number of neutron

in an atom is called ……………………………….

14)

Atomic Number : ………………………………… Mass Number :…………………………….

p : ……………………. e: ……………………. n: ………………………

Electronic configuration. ………………………. Group :………………… Period……………

Cl 35

17





15)

16) Atoms having same number of p but different number of n are called ………………

17) Atoms having same atomic number but different mass number

Element

are called ……

18)

Mass number Atomic Number

P 35 14

Q 37 17

R 35 17

S 37 18

a) The isotopes among the above elements are……………………………………………

Element Mass number neutrons

K 14 8

L 14 7

M 12 6

N 13 7

b) The isotopes among the above elements are……………………………………………….

MassNo

Atomic No p e n e-configuration Group Period

31 15

18 2, 8, 7

18 VI 2

12 I 3

6 8





19) The formular of oxide formed my element X is X2O3. Write the formular of

Sulphate formed by M………………………………………………………………….

20) The formular of Sulphate formed by Y element is YSO4. Write the formular of

the phosphate formed by Y………………………………………………………

21) Name the following according to the International Union Pure and Applied Chemistry – IUPAC.

The valencies should be written in parenthesis () when writing elements having variable

valencies.

a) FeCl3………………………………………… b) FeCl2……………………………………………….

c) Pb(NO2)2……………………………… d) Pb(NO2)4 ………………………………………..

e) CuOH…………………………………… f) Cu(OH)2………………………………………….

g) PbO……………………………………… h) PbO2 …………………………………………..….

i) FeO……………………………………. J) Fe2O3…………………………………………..….

22) Relative atomic mass = ------------------------------------------------

1/12th mass of 12C isotope

H=1, C=12, N=14, O=16, Na=23, Mg=24, S=32, Cl=35.5, Ca=40, Fe=56, Zn=63, Cu=63.5

23) Find the relative molecular mass of urea

………………………………………………………………………………………………………………………………….

………………………………………………………………………………………………………………………………….

24) Find the N percentage in urea

………………………………………………………………………………………………………………………………….

………………………………………………………………………………………………………………………………….

25) Number of C atoms in 12g of 12C is called ……………………………………………………………





26) No of atoms in (Relative atomic mass) in grams ………………………………………………….

27) No of S atoms in 48g of S……………………………………………………………………………………….

…………………………………………………………………………………………………………………………………

28) Mass of 2.5 moles of C…………………………………………………………………………………………..

………………………………………………………………………………………………………………………………..

29) No of (NH2)2CO molecules in 900g of urea…………………………………………………………..

……………………………………………………………………………………………………………………………….

………………………………………………………………………………………………………………………………..

…………..……………………………………………………………………………………………………………………

C) Draw the Lewis structure of CO2 molecule

No of C atoms …………………………………………………………………………

No of O atoms …………………………………………………………………………

Atom on the center ………………………………………………………………………..

Valency of O ………………………………………………………………………..

No of bonds to O ………………………………………………………………………..

Valency of C ………………………………………………………………………..

No of bonds to C ………………………………………………………………………..

No of e for each bond ………………………………………………………………………..

Group of O ………………………………………………………………………..

No of e in last energy level of O ………………………………………………………………………..

No of e given by O for bonding ……………………………………………………………………….

No of free electrons in O ……………………………………………………………………….

Group of C ………………………………………………………………………..

No of e in last energy level of C ………………………………………………………………………..

No of e given by C for bonding ……………………………………………………………………….

No of free electrons in O ……………………………………………………………………….





Answer the following questions using the following information

Element A B C D E F G H I J

Atomic

No

X-3 X-2 X-1 X X+1 X+2 X+3 X+4 X+5 X+6

These elements belong to the 2nd and 3rd periods. Element C has the highest melting point.

1) Highest radius………….

2) Lowest radius…………

3) Highest ionization energy……………

4) Lowest ionization energy………..

5) Least reactive………

6) Most positive………………

7) Most negative…………

8) Strongest metal………..

9) Strongest non-metal…………….

10) Lowest atomic volume………….

11) Halogen………….

12) Alkaline metal…………………..

13) Alkaline earth metal …………

14) Metal that reacts with water very fast…………......

15) Element used in bulbs……………….

16) Supporter of combustion……………………………

17) Most abundant element in air…………

18) Burns in air with a yellow flame………….

19) Mono atomic gas………………

20) Forms oxides that turns blue litmus red………….

21) Forms oxides that turns red litmus blue........…….

22) Di-atomic gases with triple bonds……..

23) Di-atomic gases with double bonds……….





24) Di-atomic gases with single bonds…………..

25) Formula of compound formed between E and J…………

26) The bond type………...

27) Sulphate formed by I……………………

28) Formula of the most ionic compound that can be formed…………

29) Formula of a carbonate that cannot be decomposed by heating………..

30) Compound formed by H that could give out oxygen when heating …………….......

31) Balanced equation to show how the element I burns in air…………………………………

32) Balanced equation to show how the above product reacts with water…………………

33) Write the type of the above reaction…………………………………………………………..



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