Question

investigate the condition required for seeds to germinate set up your apparatus keep the dishes at room temperature for a week explain these observations soak peas seed put in dry cotton wool.soaked peas seed put in wet cotton wool soaked peas seed put in water
please tell fast​

Answer 1

Answer:

Aim: To prove that oxygen is necessary for germination.

Apparatus: Two conical flask marked A and B, seeds of pea, water, cotton wool, pyrogallic acid, test tubes.

Procedure: Take two conical flask with a cork and mark them A and B respectively.Place a wet cotton wool in each flask with some soaked Pea seeds. Pyrogallic acid absorbs oxygen so a test tube of in flask B in such a way that the cemical dosent drop in the flask. In flask A hang a test tube of plain water.

Observation: The seeds in flask A germinate because of presence of oxygen and seeds in flask B do not germinate because pyrogallic acid absorbs oxygen.

Result: Oxygen is necessary for germination.