Question

Which of the following is absent in plant cell
A) Vacuole
B) Centriole
C) Cell Membrane
D) Mitochondria

Answer 1

Hint: Centrioles are paired organelles which help in cell division by organizing spindle fibres. Bothe the centrioles in the centrosome lie perpendicular to each other. They create centrosomes which are lacking in plant cells.

Complete answer:
Let’s first need to know about these plant cells.
A. Vacuoles are a kind of storage bubbles present in the plant cells. Such plant lives that have vacuoles may not look well and want a lot of water.
B. Centrioles form centrosomes and these are known as organizing centres for microtubules. They have a feature of nine packages of microtubules creating one centriole. The centrioles move to the differing margins for spindle fibre group.
C. Cell membrane is the outermost membrane present in animal cells whereas, plant cell consists of cell wall as well as plasma membrane.it is a selectively permeable membrane.
D. Mitochondria is the powerhouse of the cell, which produces energy. It is a membrane-bound organelle, extant in the cytoplasm of the cell of Eukaryotic organisms which synthesizes protein molecules in the form of ATP, which is used by the cell. Theoretically mitochondria are believed to have been created as prokaryotic cells.

Hence, the correct answer is option (B) Centriole.

Note:
Although the centrioles are known as centres for mitotic spindle formation, the animal cells like oocytes have shown division in absence of centriole too. Absence of centrioles can also show cell division.