X STATE RESULTS (17/04/10) (25)

X STATE RESULTS (17/04/10) (25)

1026 - 25
1027 - AB
1028 - 24.5
1029 - 10.5
1030 - 20.0
1031 - 13.0
1032 - 22.5
1033 - ----
1034 - 21.0
1035 - 20.5

IX ICSE RESULTS (17/04/10) (30)

IX ICSE RESULTS (17/04/10) (30)

1.BHAVANA A JAIN 22
2.LIKHITH.R. 25
3.VISHAKA 21.5
4.ANKITHA 23.5
5.REIN HARD AB

X ICSE RESULTS (17/04/10)

X ICSE RESULTS (17/04/10)

1001 - 85.62         RANK 1   YOSHITA NATESH
1002 - 96.25         RANK 2   NISCHAL
1003 - AB            RANK 3   NISCHITH
1004 - 81.25
1005 - 67.0
1006 - 57.5
1007 - 75.6         BATCH II WINNERS
1008 - 88.0
1009 - 73.75
1010 - 59.0
1011 - 95.0
1012 - 76.25
1013 - 97.0
1014 - 60.0
1015 - 74.0
1016 - 65.6
1017 - 84.0
1018 - 80.0
1019 - 93.12
1020 - 92.0
1021 - 84.0
1022 - AB
1023 - AB
1024 - 59.16

CET/AIEEE RESULTS(19/04/10)

CET/AIEEE RESULTS(19/04/10)

 NAME                 AIEEE RANK     CET RANK

1.PONMALAR             6                          7
2.SASHANK                 7                          5
3.VARUN                      8                          6
4.NAVNEET                 4                          3
5.NANDKISHORE      3                          1
6.AADITYA                  5                          4
7.BHARADWAJ          1                          2
8.PRAMOD                  2                          3

ANSWER KEY X ICSE BATCH III(17/04/10)

ANSWER KEY X ICSE BATCH III(17/04/10)

X ICSE MATHEMATICS (60)

Q.1) A     Rs.6868.80
        B     PROVE
        C     Rs.1,456
Q.2) A     PROVE
        B     Rs.12,500
        C     x = 32/3 or x = 1
Q.3) A    Rs.1,875 ;  Rs.50,700;  Rs.2,028
        B     PROVE
        C     PROVE
Q.5) A     20% ;   Rs.14,400
        B     Rs.784 ; Rs.7,278
        C     Rs.4,800
Q.6) A     Rs.35,370.50
        B     Rs.35
        C     Rs.5,000
Q.7) A     (3±√40)/2 ;
        B     (-5±√40)/5 ; 
        C     x = 1 or x = -2
Q.8) A     PROVE
        B     PROVE
        C     PROVE
Q.9) A     PROVE
        B     PROVE
        C     PROVE
       
       

ANSWER KEY X ICSE BATCH I II (17/04/10)

ANSWER KEY X ICSE BATCH I II (17/04/10)

X ICSE MATHEMATICS (80)
             SECTION A
Q.1) A     Rs.10,560; Rs.11,616; Rs.2016; Rs.1056,105.60
        B     Rs.8320
        C     Rs.1600
Q.2) A     x =  +1, -2/7
        B     x = (3+√3)/2; (3-√3)/2
        C            [-1/2  -2]
                       [ 1/2  -1]
Q.3) A     PROVE
        B     i) 13 ii) 4√m2+n2
        C     b = 8 ; a = 1
Q.4) A     p = 3 ; q = 10
        B     PROVE
        C     PROVE
Q.5) A     18%, Rs.11,139.20, Rs.2005.02,
        B     Rs.13,122
        C     3,11,040 ; 1,50,000
Q.6) A    Rs.35,370.50
        B     8%
        C     Rs.2,111.90
Q.7) A     x = 0, x = 3/2 ;  x = 20 or x = -25
        B     x = - 1 or 5/2 ; factors not possible.
        C     x =7 or 11
Q.8) A    a = -5, k = 8
        B    a = -3, b = -1
        C    (x-2)(x+1)(2x-7)
Q.9) A    [1  2]
               [3  5]
        B    x = 2, y = 4, z = 1, w = 3
        C    a = 2, b = 2 ;   M = [4  1]
                                               [1 -6]
Q.10 A     5,  2√a2+b2
         B     PROVE
         C     PROVE
Q.11 A     PROVE
         B     PROVE
         C     PROVE
















      

CET / AIEEE ANSWER KEY (17/04/10)

CET / AIEEE ANSWER KEY (17/04/10)

CET PHYSICS

1 C
2 C
3 A
4 A
5 A
6 B
7 A
8 B
9 A
10 A
11 B
12 C
13 D
14 D
15 C
16 B
17 C
18 B
19 C
20 B
21 A
22 B
23 A
24 A
25 B
26 C
27 D
28 C
29 C
30 B
31 D
32 A
33 A
34 C
35 B
36 D
37 A
38 A
39 B
40 A

CET / AIEEE ANSWER KEY (17/04/10)

CET / AIEEE ANSWER KEY (17/04/10)

CET CHEMISTRY

1 A
2 D
3 D
4 B
5 B
6 C
7 C
8 C
9 A
10 A
11 C
12 B
13 D
14 A
15 D
16 D
17 C
18 C
19 A,C
20 C
21 C
22 D
23 C
24 B
25 C
26 C
27 B
28 A
29 B
30 D
31 D
32 C
33 A
34 B
35 B
36 A
37 D
38 C
39 C
40 D

CET / AIEEE ANSWER KEY (17/04/10)

CET / AIEEE ANSWER KEY (17/04/10)

CET MATH
1) B
2) B
3) C
4) C
5) C
6) A
7) B
8) B
9) B
10 A
11 A
12 B
13 A
14 A
15 A
16 A
17 A B C
18 C
19 A
20 A
21 C
22 C
23 A
24 A
25 B
26 C
27 A
28 B
29 C
30 A
31 C
32 B
33 B
34 B
35 C
36 A B C D
37 C
38 C
39 D
40 C

CET CHEMISTRY

X ICSE PHYSICS ANSWER KEY BATCH I (11/04/10)

QUESTION 1  refer text book 
QUESTION 2  refer text book
QUESTION 3  convergent,concave,medium is same,optical centre,does not,decreases
QUESTION 4 depends on diagram,real,inverted, magnified, increases
QUESTION 5 convex lens
QUESTION 6 concave lens
QUESTION 7 real
QUESTION 8 c) 
QUESTION 9 refer text book
QUESTION10 yes,
QUESTION11 highly diminished,real,inverted,focal plane
QUESTION12 out of portions marks granted. 

PHYSICS ANSWER KEY X ICSE BATCH II & III

QUESTION :1 -    0.8 ohm
QUESTION :2 -    0.7 ohm
QUESTION :3A - 40 ohm
QUESTION :3B - 8 ohm
QUESTION :3C - 1.5ohm
QUESTION :3D - 12ohm
QUESTION :3E - 8 ohm
QUESTION :3F - 3 ohm
QUESTION :3G - 50 ohm
QUESTION :3H - 8.25 ohm

X ICSE RESULTS (11/04/10)

X ICSE RESULTS (11/04/10) PHYSICS

1001 - 27/30                   S.R.VARUN     - RANK I
1002 - 29/30                   NISCHAL         - RANK II
1004 - 26/30                   VISHRUTH      - RANK II
1005 - 23/30                   POOJASHREE - RANK II
1006 - 22/30                   ABHIJITH        - RANK II
1007 - 29/30                   NISCHITH        - RANK II
1008 - 24/30
1009 - 25/30                 BATCH I WINNERS
PHYSICS MARKS (25)
1010 - 15/25
1011 - 24/25
1012 - 17/25
1013 - 19/25
1014 - 23/25
1015 - 19/25
1016 - 13/25
1017 - 25/25
1018 - 23/25
1019 - 24/25
1020 - 24/25
1021 - 17/25
1022 - 11/25
1023 - 21/25

SARA CET/AIEEE ANSWER KEY

SARA CET/AIEEE ANSWER KEY

1. B
2. B
3. B
4. D
5. C
6. A
7. D
8. B
9. D
10.B
11.C
12.C
13.A
14.D
15,D
16.C
17.D
18B
19.B
20.B
21.A
22.B
23.C
24.A
25.C
26.D
27.B
28.D
29.D
30.A
31.A
32.B
33.C
34.D
35.A
36.C
37.B
38.B
39.A
40.D
41.C
42.D
43.B
44.A
45.D
46.D
47.B
48.A
49.B
50.D

SARA CET/AIEEE RESULTS

SARA CET/AIEEE RESULTS

1214 ............ +55
1213 ............ +45
1203 ............ +35
1206 ............ +16

X ICSE RESULTS (04/04/10)

X ICSE BIOLOGY RESULTS MARKS (30)

1001 - 21
1002 - 24.5              BATCH I WINNERS
1003 - ----                NISCHITH BHARADWAJ - 26.5 RANK I
1004 - 21                 YOSHITA NATESH - 25.5
1005 - 20                 NISCHAL - 24.5
1006 - 20
1007 - 18
1008 - AB
1009 - 21
1010 - 18
1011 - 26.5
1012 - 18
1013 - 24.5
1014 - 16
1015 - 20
1016 - 17
1018 - 21
1019 - 20.5
1020 - 22
1021 - 21
1022 - 10.5

II PUC TEST RESULTS (04/04/10)

II PUC PHYSICS TEST MARKS (30)

1201 - AB
1202 - 20
1203 - 23
1204 - 24
1205 - 19
1206 - 20
1207 - 15

X STATE MATHS TEST MARKS (30)

DEEPIKA - 29
SURAJ      - 28
ABISHEK - 28
HAMDAN - 26
SRIVATS  - 21

X CBSE MATH TEST MARKS (30)

SARVESHWARAN - 30

ANSWER KEY X ICSE BATCH I II III (04/04/10)

Answers for the test on photosynthesis.


1.). the primary function of photosynthesis is to capture light energy, convert some of this light energy into chemical energy, and store this chemical energy in molecules of carbohydrates

2. Oxygen is released as a by-product (= “waste material”) of photosynthesis. (B) The oxygen atoms are removed from water as the water is broken down during the light reactions.

3. Two high-energy molecules that are produced during the light reactions are adenosine triphosphate (ATP) and nicotinamide adenine dinucleotide phosphate (NADP-H).

4. Chloroplast

5. Photons

6. (i) Chloroplast

(ii) ATP

(iii) Photosynthesis

(iv) Glucose

(v) O2

(vi) Co2, H2O, Chlorophyll, Sunlight

(vii) H2O

7. (i) False

(ii) False

(iii) False

(iv) False

ANSWER KEY X ICSE BATCH I II III

ANSWER SHEET X-ICSE II BIOLOGY WEEKLY EXAM ( AIDS TO HEALTH )


Question 1. (i) Salk’s Vaccine (ii) Antigen (iii) Antibiotics (iv) Virus (v) Natural/Innate immunity

(vi) DPT

Question 2. A. Antiseptic are chemical substances applied on the skin which prevent growth of bacteria. Example Lysol.

B. Vaccine is a germ or germ-killing substance which when introduced in our body stimulate the WBCs to produce antibodies against germs for that particular disease.

c. Antibiotic is a chemical substance produced by micro-organisms, which inhibits or kills another micro-organisms. Example- Penicillin extracted from Pencillium notatum

Question 3. A. Diptheria (bacteria- rest all are viral diseases) B. Penicillin ( It is an antibiotic and rest all are vaccines ) C. Plasmodium ( It is a protozoa and all others are bacteria ) D. Carbolic acid ( It is an antiseptic and all others are disinfectants )

Question 4. Vaccine Serum i. It is germ or germ-killing substance i. It is plasma minus fibrinogen protein ii. It helps in production of antibodies. Ii. It contains antibodies.

Antiserum Antivenin

Question 5.

Question 6. The merits of local defense system are-

a. They start working instantaneously.

b. They are not dependent on previous exposure to infections.

c. They are effective against a wide range of potentially infectious agents.

Question 7. Sulphonamides are a group of synthetic medicines which contain sulpha and amine group and which interfere with the metabolism of bacteria and finally killing them.

Example- Sulphadiazine and Sulphanilamide.

Question 8.

a. False. Human beings can suffer from some diseases which attack dogs.

b. False. Antibodies bind up the germs.

c. False. Lysol is an antiseptic.

d. True.

e. False. Treatment by the use of chemicals is known as chemotherapy.

Question 9. Four uses of antibiotics are-

a. Used as medicine against various infections.

b. Used as food preservatives.

c. Treating animal feed to prevent internal infections.

d. Controlling plant pathogens.

Question 10 Different ways of local defense in our body are-

1. Protective or mechanical barriers- Skin, hair, mucus, etc.

2. Germ – killing secretions

a. Saliva, sweat, tears and nasal secretions.

b. Hydrochloric acid.

3. White blood cells- Phagocytes.

ANSWER SHEET

X-ICSE I BIOLOGY WEEKLY EXAM (TRANSPIRATION & HEALTH ORGANIZATION)

Question 1. i. ii. WHO iii. Nerium iv. Anti-transpirant v. Hydathodes vi. Red Cross

Question 2 WHO Red Cross

i.
Question 3. i. To extend all possible first-aid in any accident. ii. To procure and supply blood for the needy victims of war or other calamities. iii. To educate people in accident prevention. iv. To look after maternal and child welfare centers.

Question 4. i. To promote and support projects for research on diseases. ii. To lay pharmaceutical standards for important drugs , to ensure purity and size of the dose.

Question 5. i. Xerophytes have their leaves modified to spines in order to curtail transpiration since these plants need to conserve water. ii. During day time when transpiration takes place due to opening of stomata in the leaves , these stomata allow the diffusion of carbon-dioxide in for the utilization by the plant during the photosynthesis. Thus we can say both the process are interlinked during daytime.

Question 6. The permanent adaptations which help a plant to grow in a dry climate are-

i. Sunken stomata ii. Fewer stomata iii. Narrow leaves iv. Reduce surfaces v. Loss of leaves vi Thick cuticle.

II PUC BIOLOGY MCQ

BODY DEFENSE AND IMMUNITY


1. The ability of an antigen to induce an immune response does NOT depend on the antigen's

a. ability to enter the thyroid.

b. degree of aggregation.

c. dose.

d. size.

e. usual presence in the body.

2. The immune response to a booster vaccine is called a(n)

a. cellular response.

b. humoral response.

c. innate response.

d. primary response.

e. secondary response

3. Lymphocytes are activated by antigen in the
a. blood stream.

b. bone marrow.

c. liver.

d. lymph nodes.

e. skin.

5. Interferons

a. activate B cells to make virus-specific antibodies.

b. are Th2 cytokines.

c. are virus proteins that interfere with activation of cytotoxic T cells.

d. block virus infection of host cells.

e. inhibit virus replication by infected cells.

6. An inflammatory response

a. is characterized by a decrease in vascular permeability.

b. is stimulated by cytokines produced by neutrophils.

c. occurs only during a secondary response.

d. recruits phagocytes to the infection site.

e. usually lasts for many weeks to ensure antigen is completely removed

7. Natural Killer cells

a. are stimulated to kill infected host cells via carbohydrate-binding receptors.

b. kill normal host cells with high levels of membrane MHC Class I.

c. kill virus-infected cells when the virus is acquired naturally but not by immunization.

d . recognize virus-infected cells by the presence of viral peptide on MHC Class II.

e. secrete the complement MAC to lyse virus-infected cells.

8. Which of the following is NOT a characteristic of IgG?

a. It contains 2 g and 2 L chains

b. It crosses the placenta.

c. It is the predominant immunoglobulin in blood, lymph, and peritoneal fluid.

d. It is the largest of all the Igs.

e. Its L chains are either k or l.

9. The plasma from which fibrinogen has been removed is called-

a. Negative plasma b. Serum c. Lymph d. Coelomic-fluid

10. Which one of the following is not a phagocytic cell-

a. Monocyte b. Lymphocyte c. Basophil d. Neutrophil

11.The most numerous leucocytes are-

a. Monocyte b. Eosinophil c. Basophil d. Neutrophil

12. Which statement is not true for non-specific defense of the body-

a.

13. Vaccination protects us from infectious disease by generating memory

a. antigen.

b. lymphocytes.

c. macrophages.

d. PMNs.

e. stem cells.

14. Inflammation does NOT involve

a. cytokine production by macrophages.

b. migration of leukocytes out of the circulation.

c. pain.

d. secretion of antibodies.

e. swelling at the site of infection.

NLX,..,N PLX 15. Jenner observed that milkmaids who were infected with cowpox were later immune to smallpox infections. This is an example of a

a. acquired immunity of barrier skin cells.

b. active immunization with a non-related organism that causes similar symptoms.

c. innate immunity of milkmaids to smallpox.

d. memory response to a cross-reactive antigen.

e. passive immunization from contact with cow's milk antibodies.

16.Which of the following are not true:

a. Ig G crosses the placenta b. thymus gland is responsible for cellular immunity c. C1-9 is used by the alternative complement pathway d. eosinophils are responsible for phagocytosis e. interleukin-1 activates B cells to produce interleukin-2

17.The cells which kill the virus and cancer cells-

a. Killer T cells b. B-lymphocytes c. Antibodies d. Helper T cells

18. Fever is-

a. Third line of defense b. Specific line of defense c. Humoral cell immunity d. Non-specific defense

19. Which statement is not true about urine-

a. It inhibits bacterial growth due to its acidic pH. b. It is a part of specific defense of the body c. It cleanses the lower urinary tract as it flushes out d. It contains isozyme for killing bacteria

20. Which is not an antigen presenting cell –

a. Macrophage b. Langherhans cells c. dendritic cells d. interferons