#cell structures

• Achromic — Lacking color, discolored, or completely devoid of natural pigments; describing a cellular structure, plant tissue, or microscopic organism presenting a native transparency or chromatic neutrality.
• Simple — Being simple, uncompounded, single, or formed of a single structural element or a uniform chromatic shade. The term represents a rare adjectival adaptation of the Greek root 'haplos', sometimes used in old academic botanical works to describe a flower with a single row of petals or a plant organ unseparated into lobes.