In a chloroplast, the stacks of membranous sacs are called?

by Alyana
(NY)

Grana is part of the thykaloid. Each stack of thykaloid (the individual disks) are called grana.

Cristae are those twisted, curving-shaped inner membranes in mitochondria where cellular respiration occur.

Vacuoles stores food, waste, etc.

Stroma is the fluid-like part in the chloroplast. Thykaloid is contained in the stroma.

So, are the membranous sacs called thykaloid?