Microtubules and Cell Division quiz #1 Flashcards
BackMicrotubules and Cell Division quiz #1
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BackWhat are the main types of microtubules involved in cell division, and what are their specific roles?
The main types of microtubules in cell division are: kinetochore microtubules (attach to centromeres of chromosomes), chromosomal microtubules (attach to chromosomal ends), polar microtubules (stabilize other microtubules), and astral microtubules (extend from centrosomes to the cell periphery). Each type plays a specific role in organizing and segregating chromosomes during cell division. What is the function of the mitotic spindle during cell division?
The mitotic spindle, formed by microtubules, is responsible for segregating replicated chromosomes into the two daughter cells during cell division. How do microtubules contribute to the different stages of mitosis?
Microtubules are involved in each stage of mitosis by organizing, moving, and separating chromosomes. They form the mitotic spindle, align chromosomes at the cell's center, and pull chromatids apart during anaphase. What role do motor proteins play in microtubule function during cell division?
Motor proteins facilitate the movement and separation of chromosomes by interacting with microtubules, ensuring proper chromosome segregation during cell division. What is the contractile ring, and what is its role in cell division?
The contractile ring is a structure formed at the end of cell division that separates the two daughter cells, completing the division process. What are the four main types of microtubules involved in cell division and what does each type do?
Kinetochore microtubules attach to centromeres, chromosomal microtubules attach to chromosomal ends, polar microtubules stabilize other microtubules, and astral microtubules extend from centrosomes to the cell periphery. What is the primary function of the mitotic spindle during cell division?
The mitotic spindle is responsible for segregating replicated chromosomes into the two daughter cells. How do microtubules contribute to the different stages of mitosis?
Microtubules organize, move, and separate chromosomes by forming the mitotic spindle, aligning chromosomes at the cell's center, and pulling chromatids apart during anaphase. What role do motor proteins play in microtubule function during cell division?
Motor proteins interact with microtubules to facilitate the movement and separation of chromosomes, ensuring proper chromosome segregation. What is the contractile ring and what is its role in cell division?
The contractile ring is a structure formed at the end of cell division that separates the two daughter cells, completing the division process. What moves the chromatids during mitosis?
Microtubules, specifically kinetochore microtubules, move the chromatids during mitosis. Which organelle anchors spindle fibers during cell division?
The centrosome anchors spindle fibers during cell division. What structure is responsible for moving chromosomes during mitosis?
The mitotic spindle, formed by microtubules, is responsible for moving chromosomes during mitosis. What is the role of spindle fibers during mitosis?
Spindle fibers, composed of microtubules, separate and move chromosomes to opposite sides of the cell during mitosis. How do spindle fibers function during mitosis?
Spindle fibers attach to chromosomes and help segregate them into daughter cells during mitosis. Which cellular structure helps distribute chromosomes to new cells during cell division?
The mitotic spindle, made of microtubules, helps distribute chromosomes to new cells during cell division. From which cell structure do mitotic spindles arise?
Mitotic spindles arise from the centrosomes. What moves chromosomes during cell division?
Microtubules, organized into the mitotic spindle, move chromosomes during cell division. What is the role of spindle fibers in mitosis?
Spindle fibers ensure accurate separation of chromosomes into daughter cells during mitosis. What is the role of spindle fibers during cell division?
Spindle fibers facilitate the movement and segregation of chromosomes during cell division. What role do spindle fibers play in cell division?
Spindle fibers are essential for moving and separating chromosomes during cell division. What is the function of centrioles in a cell?
Centrioles help organize microtubules and are involved in forming the mitotic spindle during cell division. What happens to centrioles during mitosis?
During mitosis, centrioles move to opposite sides of the cell to help organize the mitotic spindle. Which structure moves chromosomes during mitosis?
The mitotic spindle, composed of microtubules, moves chromosomes during mitosis. What moves chromosomes during mitosis?
Microtubules, as part of the mitotic spindle, move chromosomes during mitosis. Which organelle is used to help the cell divide?
The centrosome is the organelle that helps the cell divide by organizing microtubules. What is the role of centrioles in cell division?
Centrioles organize microtubules to form the mitotic spindle, which is crucial for chromosome separation during cell division. What is the role of spindle fibers in mitosis?
Spindle fibers attach to chromosomes and separate them into daughter cells during mitosis. Which organelle is used to help the cell divide?
The centrosome is used to help the cell divide by organizing the mitotic spindle. What moves the chromatids around during cell division?
Microtubules, especially kinetochore microtubules, move the chromatids around during cell division. What moves the chromatids during cell division?
Microtubules move the chromatids during cell division. What moves chromatids during cell division?
Chromatids are moved by microtubules during cell division. What is the role of microtubules in mitosis?
Microtubules reorganize the cell, form the mitotic spindle, attach to chromosomes, and facilitate their movement and separation during mitosis.
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