5 12345678910 Biology : XI-CH20 – Locomotion and Movement – Assertion and Reason Read the assertion and reason carefully to mark the correct option. 10 Random question from this chapter are displayed, you can take the quiz multiple times to cover all questions 1 / 10 Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion: We can remove dust particle and some foreign substances inhaled along with the atmospheric air from trachea Reason: Trachea is lined with ciliated epithelium Both (A) and (R) are true and (R) is correct explanation of the assertion Both (A) and (R) are true and (R) is not correct explanation of the assertion (A) is true but (R) is false Both (A) and (R) are false 2 / 10 Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion: Amoeba shows simple form of movement Reason: Streaming of protoplasm is found in amoeba Both (A) and (R) are true and (R) is correct explanation of the assertion Both (A) and (R) are true and (R) is not correct explanation of the assertion (A) is true but (R) is false Both (A) and (R) are false 3 / 10 Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion: Muscle as a whole doesn’t obey all or none law. Reason: Each muscle fibre contracts maximally whenever it contracts. Both (A) and (R) are true and (R) is correct explanation of the assertion Both (A) and (R) are true and (R) is not correct explanation of the assertion (A) is true but (R) is false Both (A) and (R) are false 4 / 10 Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion: Arthritis or inflammation of a joint makes the joint painful. Reason: Some toxic substances are deposited at the joint. Both (A) and (R) are true and (R) is correct explanation of the assertion Both (A) and (R) are true and (R) is not correct explanation of the assertion (A) is true but (R) is false Both (A) and (R) are false 5 / 10 Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion: Ca2+ ion plays important role in muscle contraction Reason: Calcium ion binds to subunit of troponin on actin filament and removes the masking of active sites for myosin Both (A) and (R) are true and (R) is correct explanation of the assertion Both (A) and (R) are true and (R) is not correct explanation of the assertion (A) is true but (R) is false Both (A) and (R) are false 6 / 10 Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion: Osteoporosis is characterised by increase in bone mass. Reason: Its common cause is increased level of oestrogen. Both (A) and (R) are true and (R) is not correct explanation of the assertion (A) is true but (R) is false Both (A) and (R) are false Both (A) and (R) are true and (R) is correct explanation of the assertion 7 / 10 Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion: Skeletal muscle fibre is a syncitium. Reason: Sarcoplasm of skeletal muscle fibre contain many nuclei. Both (A) and (R) are true and (R) is correct explanation of the assertion Both (A) and (R) are true and (R) is not correct explanation of the assertion (A) is true but (R) is false Both (A) and (R) are false 8 / 10 Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion: Tentacles in hydra perform multiple functions Reason: Tentacles in hydra use for capture of prey as well as for locomotion. Both (A) and (R) are true and (R) is correct explanation of the assertion Both (A) and (R) are true and (R) is not correct explanation of the assertion (A) is true but (R) is false Both (A) and (R) are false 9 / 10 Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion: In parathyroid tetany rapid spasm of muscle occurs. Reason: It is due to low calcium ion in body fluid. Both (A) and (R) are true and (R) is correct explanation of the assertion Both (A) and (R) are true and (R) is not correct explanation of the assertion (A) is true but (R) is false Both (A) and (R) are false 10 / 10 Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion: Bone have very hard matrix Reason: Matrix of bone contain calcium salt in it Both (A) and (R) are true and (R) is correct explanation of the assertion Both (A) and (R) are true and (R) is not correct explanation of the assertion (A) is true but (R) is false Both (A) and (R) are false Your score is Restart quiz Was this helpful? YesNo 0 / 0 #XI - Biology - Assertion and Reason