Multiple Choice
In plant tissue, what structure forms the rigid outer layer of a plant cell?
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18. Cell Junctions and Tissues
Plant Tissue
Multiple Choice
In most plant tissues, what is the typical general shape of a plant cell when viewed under a light microscope?
A
Long, thin, and spindle-shaped like a typical skeletal muscle fiber
B
Box-like or rectangular due to a rigid cell wall
C
Perfectly spherical because the plasma membrane determines the shape
D
Irregular and constantly changing shape due to lack of a cell wall
Verified step by step guidance1
Recall the structural components of plant cells that influence their shape, focusing on the presence of a rigid cell wall made of cellulose.
Understand that the cell wall provides mechanical support and defines the shape of the plant cell, preventing it from being flexible or irregular.
Compare the options given: skeletal muscle fibers are animal cells and have a spindle shape, which is not applicable to plant cells.
Recognize that the plasma membrane alone does not determine the shape in plant cells because it is enclosed by the rigid cell wall.
Conclude that plant cells typically appear box-like or rectangular under a light microscope due to the rigid cell wall maintaining a fixed shape.
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