NEET BIOLOGY

Detailed explanation-1: -Without mitochondria (singular, mitochondrion), higher animals would likely not exist because their cells would only be able to obtain energy from anaerobic respiration (in the absence of oxygen), a process much less efficient than aerobic respiration.

Detailed explanation-2: -You can’t survive without mitochondria, the organelles that power most human cells.

Detailed explanation-3: -Microtubules are responsible for a variety of cell movements, including the intracellular transport and positioning of membrane vesicles and organelles, the separation of chromosomes at mitosis, and the beating of cilia and flagella.

Detailed explanation-4: -centrioles-these structures are involved in producing the microtubules involved in moving the chromosomes during mitotic division. H. cilia-these can move substances across the surfaces of cells.