객관식
Which organelle is present in animal cells but absent in plant cells?
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5. Cell Components
Introduction to Eukaryotic Organelles
객관식
Cilia and flagella are two types of cell appendages that use which of these structures to facilitate movement?
A
Actin filaments
B
Intermediate filaments
C
Microfilaments
D
Microtubules
검증된 단계별 안내1
Understand the function of cilia and flagella: Both are cell appendages that facilitate movement. Cilia are short and numerous, while flagella are longer and usually fewer in number.
Identify the structural components of cilia and flagella: Both structures are composed of a core called the axoneme, which is crucial for their movement.
Learn about the axoneme structure: The axoneme is typically arranged in a '9+2' pattern, consisting of nine pairs of microtubules arranged in a circle around two central microtubules.
Recognize the role of microtubules: Microtubules are the primary structural components of the axoneme, providing the necessary framework and support for the movement of cilia and flagella.
Conclude that microtubules are the correct answer: Given their role in forming the axoneme, microtubules are the structures used by cilia and flagella to facilitate movement.
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