Class XI

Which of the following is a mismatched pair?
  1. Mammals ⇒⇒complete double circulation and no accessory chambers
  2. Amphibians⇒⇒Arteriovenous heart and two accessory chambers
  3. Reptiles ⇒⇒Arteriovenous heart and three accessory chambers
  4. Fishes ⇒⇒Venous heart and two accessory chambers
Match the following: column A a)Waller b) Landsteiner c) de castello and Steini d) Landsteiner and Weiner column B i) rhesus antigen ii) first ECG iii) A, B and O blood group iv) AB blood group
  1. a)-iii, b)-i, c)-ii, d)-iv
  2. a)-i, b)-iii, c)-iv, d)-ii
  3. a)-iv, b)-i, c)-ii, d)-iii
  4. a)-ii, b)-iii, c)-iv, d) i
Sarla is on protein-deficient diet. As a result her plasma proteins content is reduced. She may develop symptom like :
  1. diabetes
  2. swellings of hands and feet
  3. high blood pressure
  4. reduced oxygen supply to tissues
Read the following : i. The instrument used for recording heart’s electrical events is named electrocardiogram. ii. In any ECG the part of base line between any two deflections is called interval. iii. Abnormality in the working of heart changes wave pattern of ECG.
  1. only iii) is correct
  2. only ii) and iii) are correct
  3. only i) and iii) are correct
  4. all statements are correct
Read the following statements : i. when the heart is not pumping blood sufficient to meet the need of the body then this state is called as heart attack. ii. when the heart stops beating due to irreversible death of cells then this state is called as heart failure.
  1. both are wrong
  2. Statement i) is correct and ii) is wrong
  3. both are correct
  4. Statement i) is wrong and ii) is correct
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