PART - 2 - Unit V : CH - 19 Chemical Coordination and Integration — BIOLOGY STD 11 Science — Question

'Minerals are absorbed by plants through roots or leaves'. Which mode of absorption do you think is preferred by the plants and why?

Write the overall equation of respiration.

On the basis of presence of dorsal cord (notochord) and dorsal hollow nervous system in the animal, it has been placed in which group?

Which scientist discovered oxygen in 1774?

Into which two parts is the human nervous system divided?

Which mechanism of photosynthesis is responsible for trapping of light energy, splitting of water, oxygen release and formation of ATP and NADPH?

Give a universally accepted proper definition of excretion.

Name two plants with stem thorn. What is the advantage of thorn to the plants?

Define endomembrane system.

Write the names of any two nitrogenous wastes emitted by animals.