Question

How is plant cell cytokinesis different from animal cell cytokinesis?

a. plant cells divide after metaphase but before anaphase; animal cells divide after anaphase.
b. plant cells deposit vesicles containing cell-wall building blocks on the metaphase plate; animal cells form a cleavage furrow.
c. the structural proteins of plant cells separate the two cells; in animal cells, a cell membrane separates the two daughter cells.
d. the contractile filaments found in plant cells are structures composed of carbohydrates; the cleavage furrow in animal cells is composed of contractile phospholipids?

Answer 1

Plant cell cytokinesis involves the formation of a cell plate from Golgi vesicles, which will develop into a new cell wall, while animal cell cytokinesis involves the formation of a cleavage furrow created by an actin ring.

Step-by-step explanation:

Plant cell cytokinesis differs from animal cell cytokinesis in several ways. In plant cells, Golgi vesicles coalesce at the metaphase plate, forming a structure called a phragmoplast. A cell plate is then formed by the fusion of these vesicles, which later develops into a cell wall, separating the two daughter cells. On the other hand, animal cells form a cleavage furrow during cytokinesis, which is created by a ring of actin filaments.

Additionally, the structural proteins of plant cells separate the two cells, whereas in animal cells, a cell membrane separates the two daughter cells.

Therefore, option b is the correct answer, as it accurately describes the differences between plant cell cytokinesis and animal cell cytokinesis.

Answer 2

The answer is B. Due to the presence of a cell wall, cytokinesis in plant cells is significantly different from that in animal cells, Rather than forming a contractile ring, plant cells construct a cell plate in the middle of the cell.