Multiple Choice
The micrograph depicts what type of tissue?
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1. Overview of Cell Biology
Overview of Tissue Structures
Multiple Choice
In the epidermis, which layer contains mitotically active basal keratinocytes responsible for ongoing cell division and is the deepest layer of the epidermis?
A
Stratum spinosum
B
Stratum basale (stratum germinativum)
C
Stratum granulosum
D
Stratum corneum
Verified step by step guidance1
Understand the structure of the epidermis, which is composed of multiple layers, each with distinct functions and cell types.
Identify the layer that is the deepest in the epidermis, as this is where new cells are generated before moving upward.
Recall that mitotically active basal keratinocytes are responsible for ongoing cell division, producing new cells to replenish the epidermis.
Recognize that the stratum basale (also called stratum germinativum) is the single deepest layer of the epidermis containing these mitotically active basal keratinocytes.
Confirm that other layers like the stratum spinosum, stratum granulosum, and stratum corneum are located above the stratum basale and have different roles, such as cell maturation and protection.
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