Question

تحقي الرئيسية / مقرراتي الدراسية / Section 24 Lecture In animal.cells, cytokinesis occurs by formation of a cell plate د بند الاجابة عليه اختراحد الخيارات a. False O الدرجه من 100 الله هنا b. True o ارد Previous page page Mating

Answer 1

ANSWER -

In animal cells, cytokinesis occurs by formation of a cell plate - It is a false statement.

The correct statement is - In plant cells, cytokinesis occurs by formation of a cell plate.

CYTOKINESIS -

• It is the process of Cytoplasm division to form two daughter cells.
• Cytokinesis usually begins before nuclear division is completed.
• The process of cytokinesis in animal and plant cells are different.

Cytokinesis In Plants cell -

• In plants cells and other cells that have rigid cell wall, the cytoplasm is divided in a different way.
• In plants cells vesicles formed by the golgi apparatus fuse with the midline of the dividing cell and form a Cell Plate.
• A cell plate is a membrane bound cell wall that forms across the middle of the plant cell.
• A new cell wall then forms on both sides of the cell plate.
• When cytokinesis complete, the cell plate seprate the plant cell into two plant cells.

Cytokinesis in Animal Cells -

• Animal cells undergoes cytokinesis through the formation of a Cleave Furrow.
• Microfilament attached to plasma membrane and forms a ring around equator of cell. This ring contracts like a drawstrings and divides the cell into two parts.

Thus the given statement is wrong  

Plant cells forms cell plate during cytokinesis .

Animals cells forms a cleave furrow.

Answer 2

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