Plant cells have several structures not found in other eukaryotes. In particular, organelles called chloroplasts allow plants to capture the energy of the Sun in energy-rich molecules; cell walls ...

Plant cells without walls, known as protoplasts, are very fragile, and it has been difficult to keep them alive under a ...

Remember that at that time, scientists could examine cells under the microscope ... Both mitochondria and chloroplast have their own DNA, which by then was known to contain the hereditary material ...

Chloroplasts are semi-autonomous organelles that have some degree of independence in their operation and reproduction. However, they still require proteins made from instructions in the cell nucleus .

Just like our pupils, which react to varying degrees of light exposure with dilation or constriction, organelles in plant ...