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What is an organelle that's composed of two short microtubules at right angles to each other?
centriole
What is a barrel shaped organelle usually found in pairs and perpendicular to each other?
The barrel-shaped organelle typically found in pairs and perpendicular to each other is called a centrioles. Centrioles are cylindrical structures composed of microtubules and play a crucial role in cell division by organizing the spindle fibers that separate chromosomes. They are essential for processes such as mitosis and meiosis, contributing to the proper distribution of genetic material to daughter cells.
Are vertical angles adjacent angles?
No vertical angles are across from each other & adjacent angles are beside but opposite from each other.
How many angles and how many right angles in a square?
4 right angles, no other angles.
Angles across from each other equal to each other?
Vertical Angles
What is an organelle that's composed of two short microtubules at right angles to each other?
centriole
Organelle composed of two short microtubules at tight angles to each other has active role in mitosis?
centriole
What is a barrel shaped organelle usually found in pairs and perpendicular to each other?
The barrel-shaped organelle typically found in pairs and perpendicular to each other is called a centrioles. Centrioles are cylindrical structures composed of microtubules and play a crucial role in cell division by organizing the spindle fibers that separate chromosomes. They are essential for processes such as mitosis and meiosis, contributing to the proper distribution of genetic material to daughter cells.
How are microtubules and microfilaments arranged in cilia and flagella?
Cilia and flagella are composed of a core structure known as the axoneme, which consists of a characteristic "9+2" arrangement of microtubules. This means there are nine doublet microtubules arranged in a circle around two central singlet microtubules. Microfilaments, primarily composed of actin, are not a structural component of the axoneme but play roles in other cellular processes, such as cell motility and shape. The coordinated movement of cilia and flagella is facilitated by the sliding of these microtubules, powered by dynein motor proteins.
What structures make up the fibers of the mitotic spindle?
The mitotic spindle is composed of microtubules, which are dynamic structures made up of tubulin protein subunits. It consists of three main types of microtubules: kinetochore microtubules that attach to the chromosomes, polar microtubules that interact with each other to help push the poles of the cell apart, and astral microtubules that anchor the spindle poles to the cell membrane.
What are cilia and flagella made up of?
Cilia and flagella are made up of microtubules, specifically arranged in a 9+2 pattern. They consist of nine doublets of microtubules surrounding a central pair of microtubules. The movement of cilia and flagella is generated by the sliding of these microtubules past each other.
What organelle is made up of microtubules and microfilaments?
Only the plasma membrane is made of phosophlipids as a semipermiable membrane. No other structures are made from it. There are, however, organelles which are surrounded by a plasma membrane. These include nucleus, mitochondria, peroxisomes, lysosomes and chloroplasts (in plants).
How do microfilaments and microtubules differ from each other?
Microfilaments are thinner rods of protein that enable movement. Microtubules are hollow tubes that give rigidity and shape. Flagella and cilia have microtubules in their centers.
What motor molecule is associated with the microtubules in cilia and flagella?
Dynein is the motor molecule associated with the microtubules in cilia and flagella. Dynein is responsible for generating movement by sliding the microtubules past each other.
Do centrioles lie at right angles in a cell?
Yes, centrioles typically lie at right angles to each other within a cell, forming a structure known as a centrosome. This orientation is important for organizing the microtubules during cell division and maintaining cell structure.
What other structures of the cytoskeleton would show the same pattern of microtubules as a flagellum?
Cilia, which are similar to flagella in structure, would also show the same pattern of microtubules. Both flagella and cilia contain a 9+2 arrangement of microtubules, with nine outer doublet microtubules and a central pair of microtubules.
Which organelles are not surounded by a membrane?
The ribosome is an organelle that is not surrounded by a membrane.
