Which type of animal cell lacks both mitochondria and endoplasmic reticulum?

If you are provided with some vegetables to cook,you generally add salt into the vegetables during the cooking process. After adding salt,vegetables release water. What mechanism is responsible for this?

Draw any two cell shapes to justify the statement that cells come in a variety of shapes.

Cell secretions are done by

Organelle other than nucleus,containing $DNA$ is

Who discovered the Golgi apparatus? Describe its structure and functions.