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Chapter 10: Problem 8

The fusing of Golgi vesicles at the metaphase plate of dividing plant cells forms what structure? a. actin ring b. cell plate c. cleavage furrow d. mitotic spindle

Short Answer

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b. cell plate

Step by step solution

01

Understand the question

The question asks which structure is formed by the fusing of Golgi vesicles at the metaphase plate during plant cell division.
02

Recall the process of plant cell division

In plant cell division, specifically during cytokinesis, Golgi vesicles carry materials to form a new cell wall.
03

Identify the correct structure

The Golgi vesicles coalesce at the metaphase plate to form the cell plate. The cell plate will develop into a new cell wall, dividing the cell into two daughter cells.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

cytokinesis in plant cells
Cytokinesis in plant cells is the final stage of cell division. It is the process where the cytoplasm of a parental cell is divided into two daughter cells. Unlike in animal cells, which use a contractile ring to split the cell, plant cells follow a unique process due to their rigid cell wall. This process involves several key steps:
Golgi vesicles
Golgi vesicles play a crucial role in plant cell division. They are small membrane-bound sacs produced by the Golgi apparatus. During cytokinesis, these vesicles transport essential materials like proteins, lipids, and polysaccharides to the center of the cell. As the cell prepares to divide, these vesicles migrate to the metaphase plate, indicating their importance in forming new cell structures.
cell plate formation
Cell plate formation is a vital step in cytokinesis for plant cells. When the Golgi vesicles converge at the metaphase plate, they begin to fuse, creating the cell plate. This new structure will eventually develop into a new cell wall, separating the two daughter cells. The cell plate starts as a simple structure, but as more vesicles fuse, it expands until it reaches the cell's outer membrane, completing the division process and ensuring each daughter cell has its own distinct wall.

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Most popular questions from this chapter

Describe the general conditions that must be met at each of the three main cell cycle checkpoints. a. G1 checkpoint - assessment of DNA damage, G2 - assessment of new DNA, M checkpoint - segregation of sister chromatids in anaphase. b. G1 checkpoint - Energy reserves for s phase, G2 checkpoint - assessment of new DNA, M checkpoint- attachment of spindle to kinetochore. c. G1 checkpoint - assessment of DNA damage, G2 checkpoint - energy reserves for duplication, M checkpoint - attachment of spindle to kinetochore d. G1 checkpoint - Energy reserves for S-phase, S checkpoint - synthesis of DNA, G2 checkpoint - assessment of new DNA

Chromosomes are duplicated during what stage of the cell cycle? a. \(\mathrm{G}_{1}\) phase b. prophase c. pro-metaphase d. S-phase

Explain how DNA, which in humans measures approximately two meters, can fit inside a human cell that is about 10 碌m . Discuss how the organization of the genetic material in eukaryotes differs from prokaryotes. a. The DNA is found wrapped around histones to form nucleosomes, which further compact and ultimately form linear chromosomes. The prokaryotic genome is found as a loop and in eukaryotes as a double-stranded linear structure. b. The DNA is wrapped around the nucleosomes to show a compact structure. The eukaryotes show a loop structure and prokaryotes show a doublestranded linear genome. c. The genetic material shows ringed heterochromatin structure. The prokaryotes show multiple loops, and eukaryotes show a condensed chromatin. d. The genetic material is wrapped around histones. The prokaryotes have a condensed structure in nucleoids, but eukaryotes have double-stranded linear structure.

Which of the following events does not occur during some stages of interphase? a. DNA duplication b. increase in cell size c. organelle duplication d. separation of sister chromatids

At which of the cell cycle checkpoints do external forces have the greatest influence? a. \(\mathrm{G}_{1}\) checkpoint b. \(\mathrm{G}_{2}\) checkpoint c. M checkpoint d. \(\mathrm{G}_{0}\) checkpoint
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