life processes mcq

19 What are the energy producing centres in a cell 1. mitochondria 2. golgi complex 3. vacuole 4. ribosome

18 Maximum rate of respiration takes place 1. 0 degree celsius 2. 45 degree celsius 3. 100 degree celsius 4. 160 degree celsius

17 Cutaneous respiration observed in ....... 1. cockroach 2. amoeba 3. earthworm 4. butterfly

16 Energy is stored in 1. nucleus 2. mitochondria 3. ribosome 4. cell wall