What is tumour? -Biology

What is tumour? -Biology
by

1 Answer

Answer :

answer:
by

Related questions

Can an eye twitch be caused by a tumour?

Description : Can an eye twitch be caused by a tumour?

Last Answer : Please get an appointment with a medical doctor, not your optometrist. Optometrist are great for measuring vision and correcting vision issues. But they are NOT trained for dealing with a neurological ... tumor! Get an appointment with your primary care physician and get a referral to a neurologistt

HELP do you ever get paranoid that you have a brain tumour?

Description : HELP do you ever get paranoid that you have a brain tumour?

Last Answer : And please no one say, go get a CAT scan.

$ Benign tumour remains confined whereas a malignant tumour undergoes metastasis. ! Tympanic fluid is filled in the tympanic cavity of the ear.

Description : $ Benign tumour remains confined whereas a malignant tumour undergoes metastasis. ! Tympanic fluid is filled in the tympanic cavity of the ear.

Last Answer : $ Benign tumour remains confined whereas a malignant tumour undergoes metastasis. ! Tympanic fluid is filled in ... D. If both As and R are wrong.

RB 1 gene is (A) A tumour suppressor gene (B) Oncogene (C) Proto-oncogene (D) Activated proto-oncogene

Description : RB 1 gene is (A) A tumour suppressor gene (B) Oncogene (C) Proto-oncogene (D) Activated proto-oncogene

Last Answer : Answer : A

P 53 gene: (A) A proto-oncogene (B) An oncogene (C) A tumour suppressor gene (D) None of these

Description : P 53 gene: (A) A proto-oncogene (B) An oncogene (C) A tumour suppressor gene (D) None of these

Last Answer : Answer : C

Diabetes mellitus can occur due to all of the following except (A) Deficient insulin secretion (B) Tumour of β−cells (C) Decrease in number of insulin receptors (D) Formation of insulin antibodies

Description : Diabetes mellitus can occur due to all of the following except (A) Deficient insulin secretion (B) Tumour of β−cells (C) Decrease in number of insulin receptors (D) Formation of insulin antibodies

Last Answer : Answer : B

In Cushing’s syndrome-a tumour associated disease of adrenal cortex, there is (A) Decreased epinephrine production (B) Excessive cortisol production (C) Excessive epinephrine production (D) Decreased cortsoil production

Description : In Cushing’s syndrome-a tumour associated disease of adrenal cortex, there is (A) Decreased epinephrine production (B) Excessive cortisol production (C) Excessive epinephrine production (D) Decreased cortsoil production

Last Answer : Answer : B

B.M.R. is subnormal in (A) Addison’s disease (B) Adrenal tumour (C) Cushing’s syndrome (D) Fever

Description : B.M.R. is subnormal in (A) Addison’s disease (B) Adrenal tumour (C) Cushing’s syndrome (D) Fever

Last Answer : Answer : A

Helper T cells release all the following except (A) Interleukins (B) Colony stimulating factors (C) Perforins (D) Tumour necrosis factor

Description : Helper T cells release all the following except (A) Interleukins (B) Colony stimulating factors (C) Perforins (D) Tumour necrosis factor

Last Answer : Answer : C

Helper T cells release (A) Interleukins (B) Colony stimulating factors (C) Tumour necrosis factor (D) All of these

Description : Helper T cells release (A) Interleukins (B) Colony stimulating factors (C) Tumour necrosis factor (D) All of these

Last Answer : Answer : B

Cytotoxic T cells release (A) Perforins (B) Interleukins (C) Colony stimulating factors (D) Tumour necrosis factor

Description : Cytotoxic T cells release (A) Perforins (B) Interleukins (C) Colony stimulating factors (D) Tumour necrosis factor

Last Answer : Answer : B

For limiting cerebral edema due to brain tumour, the preferred corticosteroids are betamenthasone/dexamethasone because (a) They do not cause Na+ and water retention (b) They are more potent (c) They can be administered intravenously (d) They inhibit brain tumours

Description : For limiting cerebral edema due to brain tumour, the preferred corticosteroids are betamenthasone/dexamethasone because (a) They do not cause Na+ and water retention (b) They are more potent (c) They can be administered intravenously (d) They inhibit brain tumours

Last Answer : Ans: A

Spreading of cancerous tumour to differ- ent organs is called

Description : Spreading of cancerous tumour to differ- ent organs is called

Last Answer : Metastasis

What are the enzymes useful as tumour markers?

Description : What are the enzymes useful as tumour markers?

Last Answer : Regan iso-enzyme of ALP for lung tumour; tartarate labile iso-enzyme of ACP and Prostate specific antigen (PSA) for prostate carcinoma; Neuron specific enolase (NSE) for cancers of neuro-endocrine origin.

In the treatment of which disease is dialysis used? A. Ulcers B. Heart failure C. Kidney failure (Answer) D. Brain tumour

Description : In the treatment of which disease is dialysis used? A. Ulcers B. Heart failure C. Kidney failure (Answer) D. Brain tumour

Last Answer : C. Kidney failure (Answer)

Adenocarcinoma is malignant tumour of C A. Muscles B. Bones C. Glands D. All Above

Description : Adenocarcinoma is malignant tumour of C A. Muscles B. Bones C. Glands D. All Above

Last Answer : Glands

A granuloma is C A. a small nodule of granulation tissue B. a tumour composed of granulocytes C. composed primarily of epithelioid cell, fibroblasts and lymphocytes D. None of these

Description : A granuloma is C A. a small nodule of granulation tissue B. a tumour composed of granulocytes C. composed primarily of epithelioid cell, fibroblasts and lymphocytes D. None of these

Last Answer : composed primarily of epithelioid cell, fibroblasts and lymphocytes

Which of the following finding is most important for grading of tumours? C A. Presence of tumour cells in the vascular spaces B. Level of invasion C. Microscopic pleomorphism of nuclei and the number of mitoses D. degree of metastasis

Description : Which of the following finding is most important for grading of tumours? C A. Presence of tumour cells in the vascular spaces B. Level of invasion C. Microscopic pleomorphism of nuclei and the number of mitoses D. degree of metastasis

Last Answer : Microscopic pleomorphism of nuclei and the number of mitoses

Which of the following findings is most useful for staging of a tumour C A. Presence of necrosis B. Presence of abnormal mitoses C. Presence of metastases D. Absence of apoptosis

Description : Which of the following findings is most useful for staging of a tumour C A. Presence of necrosis B. Presence of abnormal mitoses C. Presence of metastases D. Absence of apoptosis

Last Answer : Presence of metastases

A metastatic cancerous tumour is termed ‘sarcoma’ if the disorder is in (a) fibroblasts (b) circulatory system (c) immune system (d) epithelial cells.

Description : A metastatic cancerous tumour is termed ‘sarcoma’ if the disorder is in (a) fibroblasts (b) circulatory system (c) immune system (d) epithelial cells.

Last Answer : (a) fibroblasts

True statements about p53 include: a. a protein coded by a tumour suppressor gene b. it suppresses mitosis c. it is important regulators of apoptosis d. all above

Description : True statements about p53 include: a. a protein coded by a tumour suppressor gene b. it suppresses mitosis c. it is important regulators of apoptosis d. all above

Last Answer : all above

The following are true about antigen presenting cells (APC): a. Langerhan's cells are the antigen presenting cells of the epidermis b. CD8+ cells only recognize antigen presenting cells bearing MHC (major histocompatibility complex) class I c. tumour necrosis factor alpha (TNF ) can turn endothelial cells into antigen presenting cells d. all above

Description : The following are true about antigen presenting cells (APC): a. Langerhan's cells are the antigen presenting cells of the epidermis b. CD8+ cells only recognize antigen presenting cells bearing ... necrosis factor alpha (TNF ) can turn endothelial cells into antigen presenting cells d. all above

Last Answer : all above

G-proteins: a. are activated by the binding of an extracellular ligand to a membrane receptor b. can be mutated in tumour cells c. mediate the action of glucocorticoid hormone d. they are inactivated by cholera toxins

Description : G-proteins: a. are activated by the binding of an extracellular ligand to a membrane receptor b. can be mutated in tumour cells c. mediate the action of glucocorticoid hormone d. they are inactivated by cholera toxins

Last Answer : are activated by the binding of an extracellular ligand to a membrane receptor

Natural killer cells are involved in A- .tumour rejection B- .allograft rejection C- non-specific killing of virus transformed target cells D- all of these

Description : Natural killer cells are involved in A- .tumour rejection B- .allograft rejection C- non-specific killing of virus transformed target cells D- all of these

Last Answer : all of these

40 year old lady presented with swelling in the right side of the upper part of the neck below the ear lobule for last 10 years. Swelling is painless and gradually growing. On examination of the swelling, the surface is smooth, margins are well defined, and is free from skin and underlying structures. Histologically, architectural pleomorphism is seen. What is the most probable diagnosis Options: 1) Lipoma 2) Rhabdomyosarcoma 3) Chronic sialadenitis 4) Mixed parotid tumour

Description : 40 year old lady presented with swelling in the right side of the upper part of the neck below the ear lobule for last 10 years. Swelling is painless and gradually growing. On examination ... diagnosis Options: 1) Lipoma 2) Rhabdomyosarcoma 3) Chronic sialadenitis 4) Mixed parotid tumour

Last Answer : Correct Answer: 4) Mixed parotid tumour

A patient states that for ALMOST a year now she has had a rubbery, firm, painless nodule within the substance of parotid gland. This MOST likely is: A. Mucocele B. Lymph node C. Benign mixed tumour D. Squamous cell carcinoma E. Sialolith with encapsulations

Description : A patient states that for ALMOST a year now she has had a rubbery, firm, painless nodule within the substance of parotid gland. This MOST likely is: A. Mucocele B. Lymph node C. Benign mixed tumour D. Squamous cell carcinoma E. Sialolith with encapsulations

Last Answer : C. Benign mixed tumour

How can you differentiate between a benign epithelial tumour and a carcinoma:

Description : How can you differentiate between a benign epithelial tumour and a carcinoma:

Last Answer : Soft papillomatous mass, not indurated or not fixed /Moves freely/ and pedunculated.

A large cystic ovarian tumour is detected in a woman on routine antenatal check up. The most common complication she can encounter is: a) Torsion. b) Rupture. c) Haemorrhage. d) Degeneration. e) Infection.

Description : A large cystic ovarian tumour is detected in a woman on routine antenatal check up. The most common complication she can encounter is: a) Torsion. b) Rupture. c) Haemorrhage. d) Degeneration. e) Infection.

Last Answer : a) Torsion.

A 63 years old lady presents with abdominal mass and weight loss, was diagnosed as having an ovarian tumour. The most common ovarian tumour in this woman would be: a) Epithelial tumour. b) Germ cell tumour. c) Stromal tumour. d) Sex cord tumour. e) Trophoblastic tumour.

Description : A 63 years old lady presents with abdominal mass and weight loss, was diagnosed as having an ovarian tumour. The most common ovarian tumour in this woman would be: a) Epithelial tumour. b) Germ cell tumour. c) Stromal tumour. d) Sex cord tumour. e) Trophoblastic tumour.

Last Answer : a) Epithelial tumour.

The following does not apply to cancer chemotherapy: A. Each treatment with a cytotoxic drug kills a constant number of malignant cells B. Drugs are generally used at maximum tolerated doses C. The same regimen which is palliative for a large solid tumour may be curative after surgical removal of the tumour D. Combination regimens using several drugs in succession are superior to single drug used continuously

Description : The following does not apply to cancer chemotherapy: A. Each treatment with a cytotoxic drug kills a constant number of malignant cells B. Drugs are generally used at maximum tolerated ... D. Combination regimens using several drugs in succession are superior to single drug used continuously

Last Answer : A. Each treatment with a cytotoxic drug kills a constant number of malignant cells

For limiting cerebral edema due to brain tumour, the preferred corticosteroids are betamethasone/dexamethasone because: A. They do not cause Na+ and water retention B. They are more potent C. They can be administered intravenously D. They inhibit brain tumours

Description : For limiting cerebral edema due to brain tumour, the preferred corticosteroids are betamethasone/dexamethasone because: A. They do not cause Na+ and water retention B. They are more potent C. They can be administered intravenously D. They inhibit brain tumours

Last Answer : A. They do not cause Na+ and water retention

The commonest cause of unilateral exophthalmos is: a. Thyroid eye disease b. Lacrimal gland tumour c. Orbital cellulitis d. Cavernous sinus thrombosis

Description : The commonest cause of unilateral exophthalmos is: a. Thyroid eye disease b. Lacrimal gland tumour c. Orbital cellulitis d. Cavernous sinus thrombosis

Last Answer : ANSWER: A