CBSE Questions for Class 12 Medical Biology Human Health And Disease Quiz 1 - MCQExams.com

Tobacco smoke contains carbon monoxide, which
  • Reduces the oxygen-carrying capacity of blood
  • Causes gastric ulcers
  • Raises blood pressure
  • Is carcinogenic
In higher vertebrates, the immune system can distinguish self-cells and non-self. If the property is lost due to genetic abnormality and it attacks self-cells, then it leads to ?
  • Allergic response.
  • Graft rejection.
  • Auto-immune disease.
  • Active immunity.
Which of the following is not an autoimmune disease ?
  • Alzheimer's disease
  • Psoriasis
  • Vitiligo
  • Rheumatoid arthritis
Which of the following is correct regarding AIDS causative agent HIV?
  • HIV is unenveloped retrovirus.
  • HIV does not escape but attacks the acquired immune response.
  • HIV is enveloped virus containing one molecule of single-stranded RNA and one molecule of reverse transcription.
  • HIV is enveloped virus that contains two identical molecules of single-stranded RNA and two molecules of reverse transcription.
HIV is a member of a group of viruses called 
  • Bacteriophages
  • Gemini viruses
  • Lysogenic viruses
  • Retroviruses
Human Immuno Virus (HIV) contains a protein coat, genetic material and has a horse chestnut shaped 
  • Double-stranded DNA.
  • Single-stranded DNA.
  • Single-stranded RNA.
  • Double-stranded RNA.
  • Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
  • Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
  • Assertion is correct but Reason is incorrect.
  • Both Assertion and Reason are incorrect.

Assertion : Cancer is contagious and cells can spread from one person to other.

Reason : Cancerous cells are highly differentiated cells

  • If both assertion and reason are true and the reason is the correct explanation of the assertion.
  • If both assertion and reason are true but reason is not the correct explanation of the assertion.
  • If assertion is true but reason is false.
  • If the assertion and reason both are false.
  • If assertion is false but reason is true.
Short-lived immunity acquired from mother to foetus across placenta or through mother's milk to the infant is categorised as 
  • Active immunity
  • Passive immunity
  • Cellular immunity
  • Innate non-specific immunity
Which of the following is correct regarding HIV, hepatitis B, gonorrhoea, trichomoniasis?
  • Trichomoniasis is a STD whereas other are not.
  • Gonorrhoea is a viral disease whereas others are bacterial.
  • HIV is a pathogen whereas others are diseases.
  • Hepatitis B is eradicated completely whereas others are not.
Which disease is caused by a nematode?
  • Leprosy
  • Poliomyelitis
  • Amoebiasis
  • Filariasis
Cytokines that provide non specific immunity against virus are
  • Interleukin
  • Tumour necrosis
  • Colony stimulating
  • Interferon
Inflammatory response in an allergy is caused by the release of 
  • Antigen
  • Histones
  • Histamines
  • Antibodies
Which of the following is commonly known as fish tapeworm?
  • Taenia solium
  • Taenia saginata
  • Diphyllobothrium latum
  • Diplydium caninum
The components of health triangle is/are
  • Physical
  • Mental
  • Social well being
  • All of the above
Fungal diseases commonly target ............... 
  • Skin
  • Lungs
  • heart
  • Liver
................... disease continues for many days and cause ................ effect on the body.
  • Chronic; long term 
  • Acute; short term 
  • Chronic; short term 
  • Acute; long term
Virus causing AIDS has
  • Single strand DNA
  • Double strand DNA
  • Single strand RNA
  • Double strand RNA
Pick out two chronic diseases.
  • Diabetes, Arthritis
  • Asthma, Pneumonia 
  • Pneumonia, Diabetes
  • Flu, Asthma 
Body of nematodes show ........... symmetry.
  • Bilateral
  • Spherical
  • Asymmetric
  • Radial
A noninfectious unnatural and unusual reaction to a substance or condition is 
  • Immunity
  • Allergy
  • Infection
  • Toxin
Which of the following cells secrete histamine?
  • Plasma cell
  • Mast cells
  • Monocytes
  • NK-cells
Breast cancer is 
  • A sarcoma
  • Carcinoma
  • Communicable
  • Contagious
Which of the following is a dangerous allergic reaction?
  • Asphyxia
  • Anaphylaxis
  • Asthma
  • None of the above
One of the common fungal disease of man is
  • Cholera
  • Plague
  • Typhoid
  • Ring worm
Which of the following microorganisms causes ringworm?
  • Bacteria
  • Protozoa
  • Fungi
  • Virus
AIDS day
  • 1$$^{st}$$ May 
  • 5$$^{st}$$ December 
  • 31$$^{st}$$ June
  • 1$$^{st}$$ December 
A healthy person is one who is free from _________.
  • Diseases
  • Work
  • Friends
  • Enemies
Immunological destruction of body tissue or product due to antibodies reacting with the same as antigen is called 
  • Anaphylaxis
  • Autoimmune disease
  • Prophylaxis
  • Immuno-deficiency disease
The state of complete physical, social and mental well being is called
  • Disease-free state
  • Health
  • Poor health
  • Ill health
Health is a state of
  • physical well being
  • physical and mental well being
  • mental and social well being
  • physical, mental and social well being.
The disease caused by injectable drug is
  • Cancer
  • AIDS
  • Heart failure
  • Tuberculosis
People take drugs to
  • Mask the emotions
  • Forget about the problems for a time being
  • Face their enemy
  • Both A and B
Which of the following affects our health?
  • Physical environment
  • Social environment
  • Both A and B
  • None of these
Excessive and inappropriate immune response to an antigen is 
  • Anaphylaxis
  • Multiple Sclerosis
  • Allergy
  • Immune deficiency
Work and money are not important for health. Is the given statement true or false?
  • True
  • False
When we think about health, we think about individual sufferers. Is the given statement is true or false?
  • True
  • False
HIV is a:
  • Protozoan
  • Bacteriophage
  • Virus
  • Bacteria
Which of the following sense organs present in Ascaris are chemoreceptors and are located in ventrolateral lips?
  • Amphids
  • Pineal setae
  • Pineal spicules
  • Copulatory bursa
Who has developed the concept of phagocytosis in immunity? 
  • T.H. Huxley
  • Strasburger
  • Ernst Haeckel
  • E. Metchnikoff
Pinworm is called
  • Schistosoma haematobium
  • Wuchereria bancrofti
  • Ancylostoma duodenale
  • Enterobius vermicularis
In Nemathelminthes, the coelom not lined by peritoneum is:
  • Coelom
  • Pseudocoelom
  • Enterocoelom
  • Haemocoel
Oncology is the study of
  • Dead cells
  • Living cells
  • Callus
  • Cancer cells
Tube-within-a-tube body plan is shown by:
  • Coelenterates
  • Platyhelminthes
  • Aschelminthes 
  • Porifera
Which of the following groups have one or more animals who are not pseudocoelomate?
  • Turbellaria and Taenia
  • Enterobius and Wuchereria
  • Ancylostoma and Dracunculus
  • Ascaris and Ancylostoma
The excretory pore present in Ascaris  are
  • One
  • One pair
  • Three
  • One anterior and one posterior
The athlete's foot disease in humans is caused due to
  • Bacteria
  • Fungi
  • Virus
  • None of the above
HIV infection can be detected through 
  • Electron microscopy
  • Endoscopy
  • ELISA test
  • Litnotrophy
The infective stage of Ascaris is 
  • Embryonated egg
  • Sporozoite
  • Cysticercus larva
  • Rhabditoid larva
Cyclops is intermediate host of 
  • Planaria or Dugesia
  • Echinococcus
  • Dracunculus
  • Ancylostoma
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