The nucleolus is the nuclear subdomain that assembles ribosomal subunits in eukaryotic cells. The nucleolar organiser regions of chromosomes, which contain the genes for pre‐ribosomal ribonucleic acid (rRNA), serve as the foundation for nucleolar structure

Plastid is a small double-membraned  organelle of plant cells, occurring in several varieties, as the chloroplast, containing  ribosomes, prokaryotic DNA, and pigment.

In the absence of oxygen, respiration does not take place and mitochondria would be absent, as in mitochondria aerobic respiration occurs.

Cyanobacteria and Eubacteria are prokaryotes and they have nuclear matter without an envelope.

Viruses lack the typical structure of a cell and donot perform any functions of a cell hence cell theory is not applicable to viruses.

The membrane which surrounds the vacuole is known as the tonoplast.

Endoplasmic Reticulum consists of complex membranous systems in the cytoplasm of eukaryotic cells. The ER having ribosomes on the surface is known as RER while the ER without ribosomes is called the smooth ER.

Flip flop movement is rarely found in lipid molecules, whereas it remains absent in protein molecules.

Thylakoid space is present only in chloroplasts. The inner membrane of mitochondria folded to form cristae.

From the given options 'D' represents golgi complex. Golgi bodies are the organelles which modifies proteins by adding carbohydrates or other substances.