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JAWAHAR NAVODAYA VIDYALAYA
MAMNOOR WARANGAL
BIOLOGY PROJECT
Topic: CANCER
PREPARED BY: vedavyas.k
GUIDED BY: shri.g.v.NARSAIYYA(SIR)
CERTIFICATE
This is to certify that this project is bonafide work
done by master: VEDAVYAS.K of class XII
bearing HALL TICKET NO: During
the academic year 2019-2020 for the fulfilment of
AISSCE-2020 BIOLOGY PRACTICALS in
JAWAHAR NAVODAYA VIDYALAYA,
MAMNOOR,WARANGAL(D),TELANGANA.
Signature of the student
Signature of Internal Examiner
Signature of External Examiner
Signature of the Principal
B.POORNIMA
ACKNOWLEDGEMENT
At the outset I express my indebtness to the authorities of
NVS for providing me the opportunities for studying in
JAWAHAR NAVODAYA VIDYALAYA, MAMNOOR,
WARANGAL,TELANGANA.
I am very much delighted and feel privileged to place on my
sincere gratefulness to Principal Smt.B.POORNIMA of our
vidyalaya for providing facilities and extending help
concerned to this project work.
I take this opportunity to express my deep sense of gratitude
to Shri.G.V.NARSAIYYA(SIR) ,PGT-BIOLOGY of
suggesting the project,valuable guidance and constant
encouragement to carry out this project work.
I also thank Shri.M.V.SHIVA REDDY,PGT-IT &
MD.ESA,FCSA of our vidyalaya for me in completion of the
project.
I also thank MOGILI, lab attendant of our vidyalaya.
Signature of the Student
Name of the project
Cancer :
Is one of the most dreaded diseases of human
beings and is a major cause of death all over the
world.
More than a million Indians suffer from cancer
and a large number of them die from it annually.
• Contact Inhibition : It is a property of
normal cell by virtue of which contact with
other cells inhibits their uncontrolled growth.
• Cancer cells appear to have lost this property.
As a result of this, cancerous cells just
continue to divide giving rise to masses of
cells called tumors.
Tumors :
There are two main classifications of tumors.
• benign tumor
• malignant tumor
• Benign Tumor : Is a tumor that does not
invade its surrounding tissue or spread
around the body & and cause little damage.
• Malignant Tumor : Is a tumor that may invade
its surrounding tissue or spread around the
body.
Metastasis : cells actively divide and grow they
also starve the normal cells by competing for vital
nutrients. Cells sloughed from such tumors reach
distant sites through blood, and wherever they
get lodged in the body, they start a new tumor
there. This property called metastasis .
Causes of Cancer
Transformation of normal cells into cancerous
neoplastic cells may be induced by physical,
chemical or biological agents . These agents are
called carcinogens.
Ionising radiations :- like X-rays and
gamma rays &
non-ionizing radiations :- like UV cause
DNA damage leading to neoplastic
transformation.
The chemical carcinogens present in tobacco
smoke have been identified as a major cause of
lung cancer.
• Cancer causing viruses called oncogenic
viruses have genes called viral oncogenes
• cellular oncogenes or proto oncogenes:
Are the normal cells which, when
activated under certain conditions, could lead
to oncogenic transformation of the cells.
Cancer detection and diagnosis
Early detection of cancers is
essential as it allows the disease to be treated
successfully in many cases.
• Cancer detection is based on biopsy and
histopathological studies of the tissue and
blood.
Techniques :-
• Radiography (use of X-rays)
• CT (computed
• Tomography)
• MRI (magnetic resonance imaging)
are very useful to detect cancers of the
internal organs.
Treatments of cancer
The common approaches for treatment of cancer
are
• surgery,
• radiation therapy and
• Immunotherapy
Radiation Therapy
Chemotherapy :- Several chemotherapeutic
drugs are used to kill cancerous cells.
Side Effects
Some of these are specific for particular tumors .
Majority of drugs have side effects like hair loss,
anemia, etc.
Most cancers are treated by combination of
surgery, radiotherapy and chemotherapy .Tumor
cells have been shown to avoid detection and
destruction by immune system. Therefore, the
patients are given substances called biological
response modifiers such as ã-interferon which
activate their immune system and help in
destroying the tumor.
Prevention for cancer
:
I. Weight
II. Diet
III. Physical Activity
Cancer
Cancer

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Cancer

  • 1. JAWAHAR NAVODAYA VIDYALAYA MAMNOOR WARANGAL BIOLOGY PROJECT Topic: CANCER PREPARED BY: vedavyas.k GUIDED BY: shri.g.v.NARSAIYYA(SIR)
  • 2. CERTIFICATE This is to certify that this project is bonafide work done by master: VEDAVYAS.K of class XII bearing HALL TICKET NO: During the academic year 2019-2020 for the fulfilment of AISSCE-2020 BIOLOGY PRACTICALS in JAWAHAR NAVODAYA VIDYALAYA, MAMNOOR,WARANGAL(D),TELANGANA. Signature of the student Signature of Internal Examiner Signature of External Examiner Signature of the Principal B.POORNIMA
  • 3. ACKNOWLEDGEMENT At the outset I express my indebtness to the authorities of NVS for providing me the opportunities for studying in JAWAHAR NAVODAYA VIDYALAYA, MAMNOOR, WARANGAL,TELANGANA. I am very much delighted and feel privileged to place on my sincere gratefulness to Principal Smt.B.POORNIMA of our vidyalaya for providing facilities and extending help concerned to this project work. I take this opportunity to express my deep sense of gratitude to Shri.G.V.NARSAIYYA(SIR) ,PGT-BIOLOGY of suggesting the project,valuable guidance and constant encouragement to carry out this project work. I also thank Shri.M.V.SHIVA REDDY,PGT-IT & MD.ESA,FCSA of our vidyalaya for me in completion of the project. I also thank MOGILI, lab attendant of our vidyalaya.
  • 5. Name of the project
  • 6. Cancer : Is one of the most dreaded diseases of human beings and is a major cause of death all over the world. More than a million Indians suffer from cancer and a large number of them die from it annually. • Contact Inhibition : It is a property of normal cell by virtue of which contact with other cells inhibits their uncontrolled growth. • Cancer cells appear to have lost this property. As a result of this, cancerous cells just continue to divide giving rise to masses of cells called tumors. Tumors : There are two main classifications of tumors. • benign tumor • malignant tumor
  • 7. • Benign Tumor : Is a tumor that does not invade its surrounding tissue or spread around the body & and cause little damage. • Malignant Tumor : Is a tumor that may invade its surrounding tissue or spread around the body. Metastasis : cells actively divide and grow they also starve the normal cells by competing for vital nutrients. Cells sloughed from such tumors reach distant sites through blood, and wherever they get lodged in the body, they start a new tumor there. This property called metastasis .
  • 8. Causes of Cancer Transformation of normal cells into cancerous neoplastic cells may be induced by physical, chemical or biological agents . These agents are called carcinogens. Ionising radiations :- like X-rays and gamma rays & non-ionizing radiations :- like UV cause DNA damage leading to neoplastic transformation. The chemical carcinogens present in tobacco smoke have been identified as a major cause of lung cancer. • Cancer causing viruses called oncogenic viruses have genes called viral oncogenes • cellular oncogenes or proto oncogenes: Are the normal cells which, when activated under certain conditions, could lead to oncogenic transformation of the cells.
  • 9.
  • 10. Cancer detection and diagnosis Early detection of cancers is essential as it allows the disease to be treated successfully in many cases. • Cancer detection is based on biopsy and histopathological studies of the tissue and blood. Techniques :- • Radiography (use of X-rays) • CT (computed • Tomography) • MRI (magnetic resonance imaging) are very useful to detect cancers of the internal organs.
  • 11.
  • 12. Treatments of cancer The common approaches for treatment of cancer are • surgery, • radiation therapy and • Immunotherapy
  • 13. Radiation Therapy Chemotherapy :- Several chemotherapeutic drugs are used to kill cancerous cells.
  • 14. Side Effects Some of these are specific for particular tumors . Majority of drugs have side effects like hair loss, anemia, etc. Most cancers are treated by combination of surgery, radiotherapy and chemotherapy .Tumor cells have been shown to avoid detection and destruction by immune system. Therefore, the patients are given substances called biological response modifiers such as ã-interferon which activate their immune system and help in destroying the tumor.
  • 15. Prevention for cancer : I. Weight II. Diet III. Physical Activity