NEET Biology Organisms and population Question Bank

done Ageing and Death Total Questions - 33

• question_answer1)
  Degenerative changes occur during [CBSE PMT 1991]
  A)
  Metamorphosis only done clear
  B)
  Parthenogenesis done clear
  C)
  Ageing only done clear
  D)
  Both in metamorphosis and ageing done clear
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• question_answer2)
  Which of the following is the environmental theory of ageing
  A)
  The radiation affects the gene mutation resulting in the DNA transcription in somatic cells. done clear
  B)
  The rate of ageing and age is controlled by the ageing gene done clear
  C)
  Environmental and hereditary factors control the ageing done clear
  D)
  Metabolic rate affects the ageing done clear
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• question_answer3)
  Errors are accumulated due to translation of genetic code affecting the ageing. The theory is
  A)
  Mutation theory done clear
  B)
  Error catastrophe theory done clear
  C)
  Environmental theory done clear
  D)
  Gene theory done clear
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• question_answer4)
  Thymus and brain are the main factors in the ageing
  A)
  Stress theory done clear
  B)
  Gene theory done clear
  C)
  Pacemaker theory done clear
  D)
  Mutation theory done clear
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• question_answer5)
  In old age the activity of collagen protein is badly affected. This is
  A)
  Permeability which becomes very slow done clear
  B)
  Permeability which becomes very high done clear
  C)
  Diffusion which becomes very slow done clear
  D)
  Diffusion which becomes very high done clear
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• question_answer6)
  The science of ageing is called or The study of degenerative changes is called  [MP PMT 1993, 96, 2002; Kerala CET 2002]
  A)
  Chronology done clear
  B)
  Odontology done clear
  C)
  Gynaecology done clear
  D)
  Gerontology done clear
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• question_answer7)
  Ageing in many mammals including man may be due to [MP PMT 1993]
  A)
  Adverse changes in the environment done clear
  B)
  Interaction between hereditary factors (genes) and the environment done clear
  C)
  Malnutrition and stress done clear
  D)
  All of the above done clear
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• question_answer8)
  Who described ageing first
  A)
  Gagenbaur done clear
  B)
  Mendebaur done clear
  C)
  Huxley done clear
  D)
  Henle done clear
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• question_answer9)
  Which is called "Clock of ageing"
  A)
  Thymus done clear
  B)
  Thyroid done clear
  C)
  Adrenal done clear
  D)
  Pituitary done clear
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• question_answer10)
  Ageing is the result of
  A)
  Cellular changes done clear
  B)
  Extracellular changes done clear
  C)
  Environmental changes done clear
  D)
  All the above done clear
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• question_answer11)
  Ageing is characterised by
  A)
  Decline in metabolic activity done clear
  B)
  Increased metabolic activity done clear
  C)
  Increased anabolism done clear
  D)
  Increased \[{{O}_{2}}\] consumption done clear
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• question_answer12)
  During ageing, collagen present in intercellular spaces becomes [MP PMT 2001]
  A)
  Destroyed done clear
  B)
  Impermeable and rigid done clear
  C)
  More elastic done clear
  D)
  All the above done clear
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• question_answer13)
  Human body regularly loses cells in the region of
  A)
  Skin surface done clear
  B)
  Lining layer of gut done clear
  C)
  Red blood cells done clear
  D)
  All the above done clear
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• question_answer14)
  Generally decline in hearing power begins after the age of
  A)
  50 years done clear
  B)
  30 years done clear
  C)
  40 years done clear
  D)
  10 years done clear
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• question_answer15)
  According to which theory, the resistance of body decreases with the increase in age
  A)
  Immunity theory done clear
  B)
  Collagen theory done clear
  C)
  Both [a] and [b] done clear
  D)
  None of the above done clear
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• question_answer16)
  Which theory holds that accumulation of specific waste products causes ageing
  A)
  Waste product theory done clear
  B)
  Metabolic theory done clear
  C)
  Immunity theory done clear
  D)
  All of these done clear
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• question_answer17)
  The parts of the lung affected by ageing are
  A)
  Alveoli done clear
  B)
  Pulmonary arteries done clear
  C)
  Pulmonary veins done clear
  D)
  All of these done clear
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• question_answer18)
  By which age, the number of uriniferous tubules is reduced to half in man
  A)
  40 years done clear
  B)
  50 years done clear
  C)
  70 years done clear
  D)
  75 years done clear
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• question_answer19)
  Intercellular depositions occurs during
  A)
  Growth done clear
  B)
  Repair done clear
  C)
  Regeneration done clear
  D)
  Ageing done clear
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• question_answer20)
  The efficiency of heart decreases with age so heart pumps about ...... blood per minute in comparison to young age
  A)
  20% done clear
  B)
  40% done clear
  C)
  65% done clear
  D)
  85% done clear
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• question_answer21)
  With advancing age in the liver cells there is increased inactivity of
  A)
  Lipase enzyme done clear
  B)
  Ptyalin enzyme done clear
  C)
  Rennin enzyme done clear
  D)
  Aldolase enzyme done clear
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• question_answer22)
  In old age there is decrease in amount of urine output and difficulty in micturitions it is due to
  A)
  Increase in number of nephrons done clear
  B)
  Increase in glomerular filtration done clear
  C)
  Decrease in number of nephrons and glomerular filtration done clear
  D)
  [a] and [b] both done clear
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• question_answer23)
  Ageing is a process programmed by the action of on-off-switches was postulated by
  A)
  Orgel (1963) done clear
  B)
  Holliday (1974) done clear
  C)
  B.L. Strehler done clear
  D)
  Clinker done clear
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• question_answer24)
  Immune system of the body is impaired in old age which
  A)
  Decreases memory done clear
  B)
  Makes skin loose and wrinkled done clear
  C)
  Increases chances of infection done clear
  D)
  Decreases chances of infection done clear
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• question_answer25)
  Ageing substances are
  A)
  Pigments done clear
  B)
  Lipofuchsin done clear
  C)
  Weak bones done clear
  D)
  [a] and [b] both done clear
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• question_answer26)
  In old age problems like indigestion constipation and gases are caused because of
  A)
  Number of taste buds are decreased done clear
  B)
  Amount of digestive juices decreases done clear
  C)
  Muscular strength reduces done clear
  D)
  All the above done clear
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• question_answer27)
  In old age bones become
  A)
  Elastic done clear
  B)
  Long done clear
  C)
  Brittle and easily fracturable done clear
  D)
  Hollow done clear
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• question_answer28)
  Genetic clock was propounded by
  A)
  V.N. Naik done clear
  B)
  Dr. Singh done clear
  C)
  B. Pal done clear
  D)
  None of the above done clear
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• question_answer29)
  Error catastrophe theory was propounded by
  A)
  B. Pal done clear
  B)
  Orgel done clear
  C)
  Strechler done clear
  D)
  None of the above done clear
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• question_answer30)
  Ageing is process which takes place in
  A)
  Non-living done clear
  B)
  Dead done clear
  C)
  Living done clear
  D)
  None of the above done clear
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• question_answer31)
  Which one of the following is true during ageing   [MP PMT 1997]
  A)
  Decrease in blood urea and GFR done clear
  B)
  Increase in calcium content of arteries and cartilage done clear
  C)
  Decrease in cholesterol content of cornea and lens done clear
  D)
  Decrease in calcium content of arteries and cartilage done clear
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• question_answer32)
  The theory of ageing holds that ageing is due to   [MP PMT 2001]
  A)
  Random mutation in D.N.A. of somatic cells  done clear
  B)
  Increased cross-linkage of collagen & other proteins done clear
  C)
  Cumulative result of damage to tissues by free radicals done clear
  D)
  All of these done clear
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• question_answer33)
  Maximum life span of dog in years is [AFMC 2004]
  A)
  5 done clear
  B)
  10 done clear
  C)
  15 done clear
  D)
  20 done clear
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