Discuss the factors responsible for ascent of xylem sap in plants.

Discuss the factors responsible for ascent xylem sap in plants.

Define: Ascent of sap .

Discuss the factors on which amount of thermal energy passing perpendicularly between two nearby cross-section depends. Hence obtain expression for heat current.

You were visiting your friend's house. You observed some indoor plants in drawing room. You noticed that shoots of all plants slightly moved towards open window. Aunty told you that she had often changed the position of the arrangement of plants. But in any position shoots of plants showed same behaviour. Which hormone is responsible for such movement in plant ?

Discuss the factors affecting enzyme activities.