Request a call back

Join NOW to get access to exclusive study material for best results

ICSE Class 9 Answered

How will you show that heat is given out during respiration?
Asked by Topperlearning User | 06 May, 2016, 06:47: AM
answered-by-expert Expert Answer

(1) Take two thermos-flasks A and B.

(2) Keep some germinating seeds in flask A and some dry seeds in flask B.

(3) Insert a thermometer in each of the flasks and close the mouth of the flasks with a cork.

(4) Note the initial temperature of both the flasks.

(5) After two days, again note the temperatures of the two flasks.

(6) There is a rise in temperature in flask A, showing that germinating seeds respire and produce heat.

(7) Flask B shows no change in temperature, indicating that dry seeds do not respire and so, no heat is liberated.

Answered by | 06 May, 2016, 08:47: AM
Get Latest Study Material for Academic year 24-25 Click here
×