Dipicolinic acid is an important component of __________ .

a. Gram-positive archaeal walls
b. cytoplasmic membranes in eukaryotes
c. endospores
d. Golgi bodies

검증된 단계별 안내

Understand what dipicolinic acid is: it is a chemical compound known to be associated with certain bacterial structures.

Recall that dipicolinic acid is primarily found in bacterial endospores, where it plays a crucial role in heat resistance and stability.

Review the options given: Gram-positive archaeal walls, cytoplasmic membranes in eukaryotes, endospores, and Golgi bodies.

Eliminate options that do not relate to bacterial structures or known locations of dipicolinic acid, such as cytoplasmic membranes in eukaryotes and Golgi bodies.

Conclude that dipicolinic acid is an important component of endospores, which are specialized, resistant structures formed by some bacteria.

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주요 개념

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Dipicolinic Acid

Dipicolinic acid is a unique chemical compound found predominantly in bacterial endospores. It plays a crucial role in spore resistance by stabilizing proteins and DNA, and helps in dehydration of the spore core, contributing to heat resistance.

Endospores

Endospores are highly resistant, dormant structures formed by certain bacteria, such as Bacillus and Clostridium species, to survive extreme environmental conditions. They contain dipicolinic acid, which is essential for their durability and resistance to heat, radiation, and chemicals.

Cellular Structures in Microorganisms

Different microorganisms have distinct cellular components, such as Gram-positive archaeal walls, cytoplasmic membranes, and organelles like Golgi bodies in eukaryotes. Understanding these structures helps differentiate where specific molecules like dipicolinic acid are found.

Dipicolinic acid is an important component of __________ .a. Gram-positive archaeal wallsb. cytoplasmic membranes in eukaryotesc. endosporesd. Golgi bodies