Exams › NEET › Biology

Balbiani rings are prominent chromosomal structures that facilitate the study of active gene organization and the production and movement of specific RNA-protein complexes.

1. (a) → (iii), (b) → (iv), (c) → (i), (d) → (ii)
2. Lysosomes, golgi bodies, and mitochondria are examples of organelles surrounded by membranes.
3. The cytoskeleton is formed by microtubules, microfilaments, intermediate filaments, and the endoplasmic reticulum. Microfilaments are solid, non-living structures made of actin protein and measure 4-6 nm in diameter.
4. Ribosomes are not considered organelles as they lack membranes. Instead, they are macromolecular complexes composed of RNA and proteins.

Correct answer: Ribosomes are not considered organelles as they lack membranes. Instead, they are macromolecular complexes composed of RNA and proteins.

Solution

Ribosomes are macromolecular complexes made of RNA and proteins, and they lack a surrounding membrane, distinguishing them from membrane-bound organelles.

Related NEET Biology questions

• Plant cells are rigid due to the presence of
• In prokaryotes, the genetic material is
• According of fluid mosaic model, plasma membrane is composed of
• Cellulose, the most important constituent of plant cell wall is made of
• Poisons like cyanide inhibit Na⁺ efflux and K⁺ influx during cellular transport. This inhibitory effect is reversed by an injection of ATP. This demonstrates that
• The association of histone H1 with a nucleosome indicates:

⚔️ Practice NEET Biology free + battle 1v1 →