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Test: Cancer (NCERT) - NEET MCQ


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10 Questions MCQ Test Biology Class 12 - Test: Cancer (NCERT)

Test: Cancer (NCERT) for NEET 2024 is part of Biology Class 12 preparation. The Test: Cancer (NCERT) questions and answers have been prepared according to the NEET exam syllabus.The Test: Cancer (NCERT) MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Cancer (NCERT) below.
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Test: Cancer (NCERT) - Question 1

Read the following statements and select the correct option.

Statement 1: Malignant tumors normally remain confined to their original location, do not spread to other body parts and cause less damage.
Statement 2: Cancer arising from epithelial tissues of internal organs and glands is referred to as sarcoma e.g., breast cancer, cervical cancer etc.

Detailed Solution for Test: Cancer (NCERT) - Question 1

Benign tumour remains confined to the site of its orgin and does not spread to other parts of the boyd. It causes limited damage to the body and is non-cancerous. Malignant tumor is a cancerous tumour and spreads to other parts of the body from the site of its origin. Cancer arising from epithelial tissues is referred to as carcinoma e.g., breast cancer, cervical cancer, etc.

Test: Cancer (NCERT) - Question 2

Several genes called _____have been identified in normal cells which when activated will turn in to ___ , and under certain conditions, could lead to cancerous transformation of the cells.

Complete the above paragraph by selecting correct sequence of words.

Detailed Solution for Test: Cancer (NCERT) - Question 2

Proto-oncogene is a normal gene which, when altered by mutation, becomes an oncogene that can contribute to cancer. Proto-oncogenes may have many different functions in the cell. Some proto-oncogenes provide signals that lead to cell division. Other proto-oncogenes regulate programmed cell death (apoptosis). The defective versions of proto-oncogenes, known as oncogenes, can cause a cell to divide in an unregulated manner. This growth can occur in the absence of normal growth signals such as those provided by growth factors. A key feature of oncogene activity is that a single altered copy leads to unregulated growth.

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Test: Cancer (NCERT) - Question 3

Cancer cells do not exhibit the property of

Detailed Solution for Test: Cancer (NCERT) - Question 3

Normal cels have the prperty of contact inhibition Due to this property they contact with other cells, and inhibit their uncontrolled growth. Cancel cells seem to have lost this property and thus undergo uncontrolled growth.

Test: Cancer (NCERT) - Question 4

Read the following statements carefully.
(i) Cancer causing viruses have genes called viral oncogenes.
(ii) Malignant tumors remain confined to their original location.
(iii) Cancer cells do not exhibit contact inhibition.
(iv) X-rays and UV rays are not potent carcinogens.
(v) Cancer detection is based on biopsy.

Which of the above statements are not correct regarding cancer?

Detailed Solution for Test: Cancer (NCERT) - Question 4

Benign tumours remain confined to their original location. X-rays and UV-rays are carcinogenic.

Test: Cancer (NCERT) - Question 5

A person suffering from leukaemia has

Detailed Solution for Test: Cancer (NCERT) - Question 5

A person suffeing from leukaemia has abnormal increase in the number of WBCs due to their increased formation in the bone marrow.

Test: Cancer (NCERT) - Question 6

The substance given to cancer patients in order to activate their immune system and destroy the tumour is

Detailed Solution for Test: Cancer (NCERT) - Question 6

Cancer patients are given substances called biological response modifiers like α-interferon which activate their immune system and help in destroying the tumours.

Test: Cancer (NCERT) - Question 7

Which of the following statements is not correct?

Detailed Solution for Test: Cancer (NCERT) - Question 7

Fetus receiving antibodies from mother through placenta is an example of passive immunity.

Test: Cancer (NCERT) - Question 8

Match column I with column II and select the correct option from codes given below.

Test: Cancer (NCERT) - Question 9

Following table summarises the differences between normal cells and cancerous cells. Pick up the wrong difference(s) and select the correct option.

Detailed Solution for Test: Cancer (NCERT) - Question 9

Life span of normal cells is definite while life span of cancerous cells is not definite.

Test: Cancer (NCERT) - Question 10

A metastatic cancerous tumour is termed 'sarcoma' if the disorder is in

Detailed Solution for Test: Cancer (NCERT) - Question 10

Sarcoma is a cancer of connective tissues and muscular tissues. Fibroblasts are the cells present in the connective tissue that act as precursors of collagen, elastic and reticular fibres.

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