Question

A biologist examines the organelles present in the root cells, stem cells, and leaf cells of a green plant. She finds a high density of mitochondria and no chloroplasts in the root cells, but an abundance of mitochondria and an abundance of chloroplasts in the stem and leaf cells.

Explain the fact that ll of the cells in the plant contain mitochondria, but not all of the cells contain chloroplasts. Explain how the availability of light affects this distribution. Predict the effect to the plant if the root cells suddenly acquired chloroplasts but lost all of their mitochondria.

Answer 1

As. The plant is getting sunlight to photosynthesis and thus they makes foods , stem and leaves contain both mitochondria as well as chloroplast.

But root cells doesn't contain chloroplast as they don't get sunlights.

If the root have chloroplast but no mitochondria, then photosynthesis will not seen as no sunlight can be given to root and ATP WILL NOT PRODUCED IN ROOT AND THUS, SOLUTE AND WATER ABSORBTION WOULD BE AFFECTED AND THUS PLANT CAN BE DEAD