Centrioles are primarily found in animal cells, where they play a crucial role in cell division by organizing microtubules and forming the spindle fibers that separate chromosomes. While centrioles are generally absent in higher plants, they can be found in some lower plants and in the male gametes of certain plant species.
The plasmalemma, also known as the cell membrane or plasma membrane, is a biological membrane that separates the cell's interior from the external environment, regulating the movement of materials and facilitating communication.The plasmalemma (or cell membrane) is a common structure found in both plant and animal cells, but not regarded as an organelle, rather the outer boundary of the cell, separating the inside from the outside environment, and it's a membrane, not an organelle.
Cell walls are a defining feature of plant cells, but are absent in animal cells. Plant cells have a rigid cell wall surrounding the cell membrane, which provides structural support and protection. Also, a cell wall is not considered an organelle, but rather a non-membrane-bound, extracellular structure that provides support and protection to cells, particularly in plants, fungi, and bacteria.
Plant cells have chloroplast and cell walls, whereas animal cells do not. Plant cells must be rigid to maintain their posture, and they require chlorophyll, which is found in the chloroplast, for food production.
There is an explanation video available below.
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