CBSE Questions for Class 12 Medical Biology Human Health And Disease Quiz 8 - MCQExams.com

In Taeniasis, humans act as ___________
  • Intermediate host
  • Definitive host
  • Secondary host
  • All of the above
Which of the following diseases is caused by eating raw or uncooked pork?
  • Fasciolopsiasis
  • Taeniasis
  • Dracunculiasis
  • Schistosomiasis
Taenia solium and Taenia saginata differ in _____________.
  • Mode of infection
  • Intermediate host
  • Definitive host
  • All of the above
Which of the following is used by Human immunodeficiency virus (HIV) to integrate its own DNA into a host cell's genome?
  • DNA polymerase
  • Helicase
  • Primase
  • Ligase
  • Reverse transcriptase
Taeniasis can be treated by
  • Praziquantel
  • Chloroquine
  • Primaquine
  • Zodovudine
An organism that lacks a coelom
  • Flatworms
  • Segmented worms
  • Clams
  • Grasshoppers
  • People
Which of the following is the distinguishing feature of a nematode?
  • Pseudocoelom and flame cells
  • Pseudocoelom and longitudinal muscle in the body wall
  • Flame cells and longitudinal muscle in the body wall
  • Syncytial epidermis and diploblastic nature
Which of the following body defense mechanism traps, engulfs and sweeps disease-causing agents towards the body openings?
  • Body secretions
  • Enzymes and compounds in the blood
  • Mucous membrane
  • Immune system

In the life cycle of liver fluke, the sheeps get infected when they ingest ___________.
  • Encysted cercariae
  • Miracidia
  • Sporocyst
  • Rediae
Which of the following is the distinguishing features of the nematode?
  • Pseudocoelom and flame cells
  • Pseudocoelom and longitudinal muscle in the body wall
  • Flame cells and longitudinal muscle in the body wall
  • Syncytial epidermis and diploblastic nature
Which of these pathogens causes ringworm and athlete's foot?
  • Protozoa
  • Bacteria
  • Fungi
  • Algae
In most of the Aschelminthes, the respiratory and circulatory systems are absent. Which of these statements support the given information?
  • They can absorb oxygen directly from air.
  • They do not have fluids to circulate in their body.
  • They can absorb oxygen through body wall.
  • They do not need oxygen to live.
In most of the Aschelminthes, the respiratory and circulatory systems are absent. Where do they get their oxygen needed for their metabolism?
  • They can absorb oxygen directly from air.
  • They have special oxygen cylinder attached to them.
  • They have an air bubble which feeds them.
  • They obtain oxygen from their host through their body wall.
How does vaccination produce immunity towards a particular disease?
  • It results in the increase of white blood cells.
  • It stimulates lymphocytes to produce antibodies.
  • It kills the pathogens which cause the disease.
  • It prevents the entry of pathogens into the body.
Which of these terms is used to describe a condition that interferes with the normal functioning of the body or mind?
  • Vaccination
  • Epidemic
  • Disease
  • Both B and C
Bladderworm is the common name of ______________.
  • Taenia solium
  • Ancylostoma duodenale
  • Enterobius vermicularis
  • Trichinella spiralis
Identify the phylum $$X$$ :
                 $$\boxed { \quad \quad \quad ANIMALIA \quad \quad  } \\ \quad \quad \quad \quad \quad \quad \Downarrow \\ \boxed { \quad TISSUE \quad GRADE \quad } \\ \quad \quad \quad \quad \quad \quad \Downarrow \\ \boxed { \quad \quad BILATERAL \quad \quad \quad  } \\ \quad \quad \quad \quad \quad \quad \Downarrow \\ \boxed { \quad PSEUDOCOELOMATE \quad \quad \quad  } \\ \quad \quad \quad \quad \quad \quad \Downarrow \\ \boxed { \quad \quad \quad \quad \quad \quad X\quad \quad \quad \quad \quad  } $$
  • Aschelminthes
  • Ctenophora
  • Hemichordata
  • Platyhelminthes
Identify the prominent adolescence disorder.
  • Anxiety
  • Dizzyness
  • Depression
  • Both A and C
Autoimmune diseases arise from the inadvertent recognition of self-antigens by one's own immune system. Which of the following are likely the cause of self-recognition?
  • Failure of one's immune system to eliminate self-recognizing cells.
  • Chronic exposure to allergens such as pollen.
  • Somatic mutations that lead to the creation of self-recognizing cells.
  • Uncontrolled proliferation of lymphocytes, as in the case of leukemias gives T-cells the ability to recognize self cells.
Which of the following is a cause of allergy which is stored in mast cells?
  • Interferons
  • Histamine
  • Immunoglobulins
  • None of the above
A quick immune response that often eliminates the infection or keeps it in check until a specific acquired immune response can develop is called
  • A nonspecific response, including macrophages and other nonspecific white blood cells.
  • Acquired immunity, which develops after antibodies bind to specific antigens.
  • The cell-mediated response in which T cells bind to antigen presenting cells (APCs).
  • The humoral response where B cells that develop in the bone marrow produce plasma B cells.
In $$Ascaris$$, eggs are fertilized in the 
  • Vagina
  • Oviducts
  • Lower parts of uteri
  • Seminal vesicles
The drugs which do not develop physiological dependence are
  • Opiates.
  • Sedatives.
  • Stimulants.
  • Hallucinogens.
An adolescent is greatly influenced by __________ during this phase. 
  • Parents
  • Teachers
  • Peer group
  • None of the above
Which of the following stimulation results in increased gastric secretions?
  • Mast cells
  • H$$_1$$ histamine receptor
  • H $$_2$$ histamine receptor
  • Both A and C
Specific allergen immunotherapy is also known as
  • Desensitization.
  • Immunization.
  • Agglutination.
  • Both A and C.
Which of the following T-cells are destroyed by HIV?
  • Cytotoxic T-cells
  • Killer T-cells
  • Suppressor T-cells
  • Helper T-cells
Mucous membrane trapping the microbes acts as a
  • Physiological barrier
  • Chemical barrier
  • Phagocytic barrier
  • Inflammatory barrier
Which of the following is a symptom of allergy?
  • Urticaria
  • Rhintis
  • Asthma
  • All of the above
Which of the following term is used as inherited tendency to develop allergic diseases?
  • Atopy
  • Epitope
  • Virulence
  • None of the above
Which of the following has H$$_2$$ receptor of histamine?
  • Abdomen
  • Skin
  • Lungs
  • Gastric mucosa of stomach
An autoimmune disease is
  • AIDS.
  • Haemophilia.
  • Allergy.
  • Myasthenia gravis.
Which of the following is a common drug used as anti-allergen?
  • Aspirin
  • Sodium cromoglycate
  • Ibuprofen
  • None of the above
Which of the following affects H$$_1$$ receptor?
  • Agglutination
  • Allergic manifestations
  • Opsonization
  • None of the above
Which one of the following is the curing process of myasthenia gravis?
  • Irradiation of intercostal muscles
  • Giving interferon
  • Removal of thymus gland
  • Injecting monoclonal antibodies
Identify the definitive and intermediate host of the Taenia solium.
  • Pig
  • Human
  • Fly
  • All of the above
Which of the following is the causative agent of taeniasis?
  • Pork worm
  • Flat worm
  • Round worm
  • Sand worm
Which of the following is an intermediate host for Taenia solium?
  • Mosquito
  • Pig
  • Snail
  • None of the above
Match the columns.

Column IColumn II
aPalynologypSilkworms
bOncologyqPollens
cPhycoloygrCancer
dSericulturesAlgae
  • a - s, b - r, c - q, d - p
  • a - q, b - r, c - s, d - p
  • a - s, b - q, c - r, d - p
  • a - r, b - q, c - s, d - p
Athlete's foot is caused by
  • Virus
  • Roundworm
  • Fungus
  • Bacterium
A fungal disease of humans is due to :
  • Typhoid
  • Trichophyton
  • Microsporum
  • Both B and C
The most mutable virus is
  • Chicken Pox Virus
  • $$HIV$$
  • Influenza Virus
  • Dengue Virus
Which of the following options are CORRECT?
$$1$$.
Heroin
Stimulant
$$2$$.
Marijuana
Cardiovascular
$$3$$.
Cocaine
Hallucinations
$$4$$.
Morphine
Sedative
  • $$1, 2$$ and $$3$$
  • $$1, 3$$ and $$4$$
  • $$2, 3$$ and $$4$$
  • $$1, 2$$ and $$4$$
$$HIV$$ causes immunodeficiency in
  • Multiplicative state
  • Single strand $$DNA$$ state
  • $$RNA$$ state
  • Provirus state
The pathogen Microsporum responsible for ringworm diease in humans belongs to the same kingdom of organisms as that of :
  • Taenia - a tapeworm
  • Wuchereria - a filarial worm
  • Rhizopus - a mould
  • Ascaris - a roundworm
Which of the following type of nutrition occurs in Ascaris?
  • Saprozoic
  • Parasitic
  • Holozoic
  • Mixotrophic
Intestinal parasite that feed on tissue and blood is?
  • Filaria or Wuchereria
  • Ancylostoma
  • Enterobius
  • Ascaris
Fungi causing hair loss are ______________.
  • Keratophilous
  • Pyrophilous
  • Coprophilous
  • None of the above
Name the nematode found in the striped muscles.
  • Ancylostoma
  • Trichinella
  • Ascaris
  • None of the above
Roundworms possess a symmetry:
  • Radial
  • Bilateral
  • Biradial
  • Spherical
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