GENERAL HISTOLOGY

INTRODUCTION

CELL STRUCTURE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Plant cells do not contain centrioles. When the plant cell divides through mitosis, what structure helps the plant cell to divide?
A
Cell Plate
B
Cell Wall
C
Vacuole
D
Chloroplasts
Explanation: 

Detailed explanation-1: -Answer and Explanation: Plant cell division is unique due to the presence of the cell wall and the lack of centrioles. Plant cells go through a process called cytokinesis, which is when the cellular material is divided.

Detailed explanation-2: -Land plants have an anastral mitotic spindle that forms in the absence of centrosomes, and a cytokinetic apparatus comprised of a predictive preprophase band (PPB) before mitosis and a phragmoplast after mitosis.

Detailed explanation-3: -In a plant cell, a structure called the preprophase band marks the division zone when the cell is about to divide (Figure 2A). Structures called microtubules and microfilaments make up the preprophase band.

Detailed explanation-4: -Centrioles are located near the nucleus and help organize cell division. Centrioles are not found in plant cells.

Detailed explanation-5: -Centrioles are absent from the cells of higher plants but normal mitosis takes place and with satisfactory results.

There is 1 question to complete.