Tag: zoology

Questions Related to zoology

Treatment for cancer involves

cancer - causes, signs and diagnosis human health and diseases zoology

  1. Surgery

  2. Radiation

  3. Chemotherapy

  4. All of the above

Show answer
Correct Option: D
Explanation:

There are different types of treatment for cancer. They are:

  • Surgery: Surgery can be used to diagnose, treat or even help prevent cancer in some cases.
  • Radiation therapy uses high-energy particles or waves to destroy or damage cancer cells.
  • Chemotherapy is the use of the medicines or drugs to treat cancer.
Thus, the correct answer is option D.

A plant known as 'Sadabahar' is known to produce an anti-cancer drug known as

cancer - causes, signs and diagnosis human health and diseases zoology

  1. Taxol

  2. Vincristine

  3. Colchicine

  4. Cyclosporin-A

Show answer
Correct Option: B
Explanation:

Sadabahar - Vinca plant is now well known in modern medicine.

Vincristine and Vinblastine are extracted from these plants which are used in cancer treatment.

Hence the correct option is 'Vincristine'

Treatment of cancer by X-rays or Gamma rays is 

cancer - causes, signs and diagnosis human health and diseases zoology

  1. Radiotherapy

  2. Chemotherapy

  3. Surgery

  4. Immunotherapy

  5. Hormone therapy

Show answer
Correct Option: A
Explanation:
  • Radiotherapy is the use of electromagnetic radiations such as X-rays, gamma rays, electron beams or protons to kill or damage cancer cells to stop/slow them from growing or multiplying.
  • Radiotherapy can take place before, during or after treatment or in conjugation with other treatments such as chemotherapy treatment.
  • Hence Treatment of cancer by X-rays or Gamma rays is Radiotherapy.
  • So, the correct answer is 'Radiotherapy'.

For the treatment of cancer, biological response modifiers such as _______ are given.

cancer - causes, signs and diagnosis human health and diseases zoology

  1. $\beta$-interferons

  2. $\gamma$-interferons

  3. $\alpha$-interferons

  4. $\delta$-interferons

Show answer
Correct Option: A

Which plant is used in making of medicine for treatment of cancer?

cancer - causes, signs and diagnosis human health and diseases zoology

  1. Rosa rubiginosa

  2. Madagascar periwinkle

  3. Lillium candium

  4. None of the above

Show answer
Correct Option: B

How is turmeric good for treatment of cancerous tumours?

cancer - causes, signs and diagnosis human health and diseases zoology

  1. Presence of curcumin

  2. Presence of cumin

  3. Both A and B

  4. None of the above

Show answer
Correct Option: A
Explanation:

Curcumin, a substance found in the spice turmeric, has long been used in Asian medicine to treat a variety of maladies. Now some research suggests that curcumin may help prevent or treat cancer. Curcumin is thought to have antioxidant properties, which means it may decrease swelling and inflammation.

So, the correct answer is 'Presence of curcumin'.

Which of the following will be curable in the next two decades?

cancer - causes, signs and diagnosis human health and diseases zoology

  1. Cancer

  2. Poliomyelitis

  3. Tuberculosis

  4. None of the above

Show answer
Correct Option: A
Explanation:

Polio and tuberculosis are already having vaccines as polio vaccine and BCG respectively.
Some cancers can be curable in the next two decades.
Therefore, the correct answer is option A.

Paclitaxel is a drug that stabilizes microtubules, preventing their breakdown.
Why would this drug be useful for cancer therapy?

cancer - causes, signs and diagnosis human health and diseases zoology

  1. The cell membrane is made largely of microtubules and cannot divide when they are stabilized.

  2. Breakdown of microtubules stimulates the start of cell division.

  3. Presence of microtubules increases density-dependent inhibition of cancer cells.

  4. Movement and breakdown of the cytoskeleton are essential to completion of mitosis.

Show answer
Correct Option: D
Explanation:

Paclitaxel is a drug used in the treatment of cancer. It is a cytoskeletal drug that prevents the disssembly of microtubles that are formed during cell division,that is it stabilizes the microtubules, therefore the chromosome separation does not occur during Anaphase. If this phase is prolonged then the cell either undergoes apoptosis or it reverts back to G$ _0$ phase.

So, the correct answer is 'Movement and breakdown of the cytoskeleton are essential to completion of mitosis'




Which of the following is not used to treat cancer?

cancer - causes, signs and diagnosis human health and diseases zoology

  1. $^{131}$I

  2. $^{60}$Co

  3. Taxol

  4. Streptokinase

Show answer
Correct Option: D
Explanation:
  • Streptokinase (SK) is a thrombolytic medication and enzyme. 
  • As a medication, it is used to break down clots in some cases of myocardial infarction (heart attack), pulmonary embolism, and arterial thromboembolism.
  • Hence Streptokinase is not used to treat cancer.
  • So, the correct answer is 'Streptokinase'.

Drugs vincristin and vinblastin used in cancer therapy are obtained 

cancer - causes, signs and diagnosis human health and diseases zoology

  1. Rauwolfia serpentina

  2. Atropa serpentina

  3. Catharanthus roseus

  4. Withania sommifera

Show answer
Correct Option: C
Explanation:

Catharanthus roseus, commonly known as the rosy periwinkle is a species of flowering plant belonging to family Apocynaceae. It is native and endemic to Madagascar but grown elsewhere as an ornamental and medicinal plant. It is a source of the drugs vincristine and vinblastine which are used in the treatment of cancer. 

So, the correct answer is 'Catharanthus roseus'.