Human health and Disease Quiz-16

Dear Readers,

NEET is the most famous and important medical entrance examination held in our country. This exam is an objective type, an offline test which includes 4 sections namely– Physics, Chemistry, Botany, and Zoology. The maximum marks that can be scored are 720 marks and have 180 questions. About half of the paper consists of questions from Biology, as the NEET exam essentially focuses on capacitating students to go for seats in medical courses. One of the most significant and crucial sections in the NEET exam is of Biology. It comprises of theories, descriptions, discoveries, diagrams, definitions, explanations of differences, and relations. The majority of the topics covered in the NEET syllabus are from the NCERT syllabus of Class 11 & 12 and other related sources become part of the rest of the syllabus. Clear Exam curates a list of articles selected by professionals who recommend the highly vital topics for NEET exams. The table below takes you directly to the respective topic where the in-depth article and the MCQs are available for an easy and productive learning experience. Prior to solving NEET question papers or practicing mock tests, you must ensure to study the basic concepts in NEET and practice a few sample questions related to this exam. Students will be covered for all their studies as the topics are available from basics to even the most advanced. .

Q1. The synthetic drugs structually similar to adrenaline are
  •  Amphetamines
  •  Barbituratess
  •  Halluncinogens
  •  Nicotinic derivatives
The synthetics drugs structurally similar to adrenaline are amphetamines. These are synthetic drugs and act as strong stimulants. These are generally taken by truck drivers and night workers.

Q2. The effect of hydrogen sulphide on man leads to which of the following diseases?
  •  Paralysis
  •  Blindness
  •  Sterility
  •  None of these
Hydrogen sulpide is released into the atmosphere from industries and causes irritation of respiratory passage, paralysis and asphyxia in man.

Q3. Surgical removal of thymus of a new born shall result in the failure to produce
  •  Basophils
  •  Neutrophils
  •  B-lymphocyte
  •  T-lymphocyte
Surgical removal of thymus of a new born shall result in failure to produce T-lymphocyte. Thymus provides the micro-environment for the development and maturation of T-lymphocytes

Q4. Which of the following diseases is caused due to allergic reaction?
  •  Leprosy
  •  Typhoid
  •  Asthma
  •  Tetanus
Most common allergen for asthma is house dust, pollen grains, smoke, etc. Asthma is characterized by narrowing and inflammation of bronchi, bronchiospasm and difficulty in breathing

Q5.Acquired immunity is due to
  •  Physiological and inflammatory barriers
  •  Lymphocytes
  •  Erythrocytes
  •  NK-cells
 The resistance that an individual acquires during life is called acquried immunity. Two major group of cells, i.e., lymphocytes (B and T-lymphocytes) and antigen presenting cells are involved in acquried immunity.

Q6. In India, AIDS was reported in
  •  1932
  •  1986
  • 1990
  •  1992
AIDS was first reported in USA in 1981. In India, first case of AIDS was detected in Chennai in 1986, AIDS (Acquired Immune Deficiency Syndrome) is caused by Immuno deficiency Virus (HIV).

Q7.During an allergic reaction, the binding of antigens to IgE antibodies initiates a response, in which chemicals cause the dilation of blood vessels and a host of other physiological changes. Such chemicals are
  •  Interferons
  •  Hormones
  •  Histamines
  •  acetylamine
Histamine is released from mast cells during allergic reactions. Histamine can occur in various tissues but is concentrated in connective tissue. It is formed from the amino acids histidine . It causes dilation and increases permeability of small blood vessels, which results in such symptoms as localised swelling, itching, sneezing and runny eyes and nose.

Q8.The cancer of the epithelial cells is called
  •  Leukaemia
  •  Lipoma
  •  Sarcoma
  •  Carcinoma
The cancer of epithelial cells is called carcinoma. It is a tumour that arises in the tissue that line the body’s organ like the nose, the colon, the penis, breast, etc. About 80% of all cancers are carcinomas. Leukaemia are cancers of blood or blood terming organ. Sarcoma originates in mesodermal tissue like bone, connective tissue muscle, cartilage, fibrous tissue or fat.

Q9.How does antigen-determinant differ from antigen binding site?
  •  By its structure
  •  By its location
  •  By its function
  •  All of these
Antigenic determinants or epitopes are those sites on antigens, which are recognized by antibodies and receptors present on T and B-cells. Each antigen determinant can stimulate the formation of a particular kind of antibody or cell. The antibody’s antigen binding sites are located on the variable portion of the antibody. These sites help antibodies to combine specifically with antigens in the manner of lock and key. Hence, antigen determinants differ from antigen binding sites by their location, function and structure also.

Q10. The drug ‘cyclosporin’ used for organ transplant patients is obtained from a
  •  Bacterium
  •  Fungus
  •  Virus
  • Plant
Cyclosporin is an immuno suppressive drug obtained from fungus. It is used for organ transplant patients.

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Human health and Disease Quiz-16
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