Question

All the following statements regarding cell organelles are correct, except

• A. Lysosomes are single-membrane vesicles budded off from Golgi apparatus and contain digestive enzymes
• B. Endoplasmic reticulum consists of a network of membranous tubules and helps in transport, synthesis, and secretion
• C. Leucoplasts are bound by a single membrane, lack pigment but contain their own DNA and protein-synthesizing machinery.
• D. Sphaerosomes are single membrane-bound and are associated with synthesis and storage of lipids

Answer 1

Answer: (C)

Leucoplasts are colourless plastids which generally occur near the nucleus in non-green cells and possess internal lamellae. These double membranous structures are of three types: amyloplast, proteinoplast, and elaioplast. Amyloplasts can synthesize and store starch. Proteinoplasts store proteins but can not synthesize. Elaioplasts store lipids.