Capsule is a layer that lies outside the cell wall of bacteria. The capsule can protect cells from engulfment by eukaryotic cells, such as macrophages. They also exclude bacterial viruses and most hydrophobic toxic materials such as detergents.

Correct Option: D

Capsule is a layer that lies outside the cell wall of bacteria. The capsule can protect cells from engulfment by eukaryotic cells, such as macrophages. They also exclude bacterial viruses and most hydrophobic toxic materials such as detergents.

Cell membrane of E.coli, a bacteria and Chlamydomonas a unicellular green alga does not differ. As in both cell membrane is composed of lipids and proteins.

Correct Option: D

Cell membrane of E.coli, a bacteria and Chlamydomonas a unicellular green alga does not differ. As in both cell membrane is composed of lipids and proteins.

Nostoc is a prokaryote while rest are eukaryotes. Nuclear membrane is absent in prokaryotes.

Correct Option: D

Nostoc is a prokaryote while rest are eukaryotes. Nuclear membrane is absent in prokaryotes.

Plasmodesmata are connections between adjacent cells. Plasmodesmata are narrow channels that act as intercellular cytoplasmic bridges to facilitate communication and transport of materials between plant cells. Plasmodesmata are formed during cell division, when traces of the endoplasmic reticulum become caught in the new wall that divides the parent cell.

Correct Option: C

Plasmodesmata are connections between adjacent cells. Plasmodesmata are narrow channels that act as intercellular cytoplasmic bridges to facilitate communication and transport of materials between plant cells. Plasmodesmata are formed during cell division, when traces of the endoplasmic reticulum become caught in the new wall that divides the parent cell.

The prokaryotic flagellum is single stranded made up of several parallel protein fibrils and helical in shape while in eukaryotes it is made up of axonema and sheath.

Correct Option: D

The prokaryotic flagellum is single stranded made up of several parallel protein fibrils and helical in shape while in eukaryotes it is made up of axonema and sheath.