Tag: important and common human diseases

Quizzes (9) Questions (32)

Questions Related to important and common human diseases

Multiple choice zoology important and common human diseases diseases caused by changes in lifestyle diseases and toxic substance non-infectious diseases

Which one is not property of cancer cells 

  1. They show contact inhibition

  2. Divide in uncontrolled manner

  3. Compete with normal cells for vital nutrients

  4. Do not remain confined to area of formation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body. 
  • All cancer cells show the five properties. They are: 
  1. Continuous growth and division. 
  2. Avoidance of programmed cell death. 
  3. Competes with normal cells for vital nutrients.
  4.  Promoting blood vessel construction. 
  5. Invasion of tissue and formation of metastases. Hence, the property which cancer cells does not have is they show contact inhibition.
 So, the correct answer is 'They show contact inhibition'.

Multiple choice zoology important and common human diseases diseases caused by changes in lifestyle diseases and toxic substance non-infectious diseases

Proliferation of cancer cells is not limited because of:

  1. Differing surface proteins

  2. Differing cholesterol level

  3. Aberrant chromosomal complement

  4. Both A and C
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The difference between normal tissues and cancer tissues is the rate of metabolism.  In normal cells, hundreds of genes intricately control the process of cell division. Normal growth requires a balance between the activity of those genes that promote cell proliferation and those that suppress it. However, in the case of cancer cells, they involve abnormal growth. Cells become cancerous after mutations accumulate in the various genes that control cell proliferation. Hence proliferation of cancer cell is not limited because of differing surface proteins and aberrant chromosomal complements. Thus, the correct answer is option D.

Multiple choice zoology important and common human diseases allergy and autoimmune diseases allergy non infectious diseases
Which of the following causes almost unbearable irritation of the skin?

  1. Lint of Gossypium

  2. Staminal hair of Tradescantia

  3. Prickles of Rosa indica

  4. Stinging hair of Urtica dioca
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The trichomes of Utrica cover the leaf and the stem surfaces, each trichome has a base attached to the epithelial layer, and a cell filled with irritant/allergent at the tip, that breaks on mechanical damage, touch, or when attempted to be eaten by herbivores. On breaking the chemical substances are injected into the predator causing unbearable irritation.

So, the correct answer is 'Stinging hair of Urtica dioca'

Multiple choice zoology important and common human diseases allergy and autoimmune diseases allergy non infectious diseases

A noninfectious unnatural and unusual reaction to a substance or condition is 

  1. Immunity

  2. Allergy

  3. Infection

  4. Toxin
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Allergies, also known as allergic diseases are a number of conditions caused by hypersensitivity of the immune system to typically harmless substances (non-infectious) in the environment.  Symptoms may include red eyes, an itchy rash, sneezing, a runny nose, shortness of breath, or swelling. Hence, Allergy is a noninfectious, unnatural and unusual reaction to a substance or condition.

So, the correct answer is 'Allergy'.

Multiple choice zoology important and common human diseases allergy and autoimmune diseases allergy non infectious diseases

Excessive and inappropriate immune response to an antigen is 

  1. Anaphylaxis

  2. Multiple Sclerosis

  3. Allergy

  4. Immune deficiency
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Allergies, also known as allergic diseases are a number of conditions caused by hypersensitivity (excessive) of the immune system to typically harmless substances in the environment. Symptoms may include red eyes, an itchy rash, sneezing, a runny nose, shortness of breath. Food, insect stings, and medications are common causes of severe reactions.

So, the correct answer is 'Allergy'.

Multiple choice zoology important and common human diseases allergy and autoimmune diseases allergy non infectious diseases

How many sentences is/are true among the following sentences?
(a) Allergy is due to release of histamine and serotonin from mast cells.
(b) Cell mediated immunity is responsible for rejection of graft.
(c) Principles of vaccination is based on diversity of immune system.
(d) Both bone marrow and thymus provides micro environment for development and maturation of T-lymphocytes.

  1. One

  2. Two

  3. Three

  4. Four
Reveal answer Fill a bubble to check yourself
A Correct answer