IB Biology Topic D2.1.2 Cytokinesis as Splitting of Cytoplasm in a Parent Cell Between Daughter Cells Revision Notes (SL/HL)

IB Biology Topic D2.1.2 Cytokinesis as Splitting of Cytoplasm in a Parent Cell Between Daughter Cells Revision Notes (SL/HL) | RevisionDojo

Written by official IB examiners

Cytokinesis Splits the Cytoplasm Between Two Daughter Cells

Definition

Cytokinesis

Cytokinesis is the process of dividing the cytoplasm of a parent cell into two daughter cells.

Cytokinesis is the division of the cytoplasm of a parent cell between the two daughter cells.

It gives each daughter cell its own share of organelles, cytoplasm, and a plasma membrane so it can work on its own.
Nuclear division separates the genetic material first, then cytokinesis completes the split by dividing the cell body.
Cytokinesis usually follows nuclear division rather than happening at the same time.

Hint

Cytokinesis is separate from nuclear division.
It divides the cytoplasm and its contents, not the genetic material.

In Animal Cells, a Cleavage Furrow Pinches the Cell in Two

In animal cells, cytokinesis is driven by a contractile ring of actin and myosin proteins.
This ring forms just beneath the plasma membrane at the cell's equator.

Steps of Cytokinesis in Animal Cells

Formation of the contractile ring
1. Actin and myosin proteins assemble into a ring beneath the plasma membrane.
Cleavage furrow formation
1. The contractile ring tightens and pulls the plasma membrane inward.

Nice try, unfortunately this paywall isn't as easy to bypass as you think. Want to help devleop the site? Join the team at https://revisiondojo.com/join-us. exercitation voluptate cillum ullamco excepteur sint officia do tempor Lorem irure minim Lorem elit id voluptate reprehenderit voluptate laboris in nostrud qui non Lorem nostrud laborum culpa sit occaecat reprehenderit

Definition

Paywall

(on a website) an arrangement whereby access is restricted to users who have paid to subscribe to the site.

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Duis aute irure dolor in reprehenderit

Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

Note

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam quis nostrud exercitation.

Excepteur sint occaecat cupidatat non proident

Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit.

Tip

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

Unlock the rest of this chapter with a free account

Cytokinesis Splits the Cytoplasm Between Two Daughter Cells

Definition

Cytokinesis

Cytokinesis is the process of dividing the cytoplasm of a parent cell into two daughter cells.

Cytokinesis is the division of the cytoplasm of a parent cell between the two daughter cells.

It gives each daughter cell its own share of organelles, cytoplasm, and a plasma membrane so it can work on its own.
Nuclear division separates the genetic material first, then cytokinesis completes the split by dividing the cell body.
Cytokinesis usually follows nuclear division rather than happening at the same time.

Hint

Cytokinesis is separate from nuclear division.
It divides the cytoplasm and its contents, not the genetic material.

In Animal Cells, a Cleavage Furrow Pinches the Cell in Two

In animal cells, cytokinesis is driven by a contractile ring of actin and myosin proteins.
This ring forms just beneath the plasma membrane at the cell's equator.

Steps of Cytokinesis in Animal Cells

Formation of the contractile ring
1. Actin and myosin proteins assemble into a ring beneath the plasma membrane.
Cleavage furrow formation
1. The contractile ring tightens and pulls the plasma membrane inward.

Definition

Paywall

(on a website) an arrangement whereby access is restricted to users who have paid to subscribe to the site.

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Note

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam quis nostrud exercitation.

Excepteur sint occaecat cupidatat non proident

Tip

Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

A - Unity and Diversity9 subtopics

B - Form and Function10 subtopics

C - Interaction and Interdependence9 subtopics

D - Continuity and Change12 subtopics

IB Biology Topic D2.1.2: Cytokinesis as Splitting of Cytoplasm in a Parent Cell Between Daughter Cells Notes

A - Unity and Diversity9 subtopics

B - Form and Function10 subtopics

C - Interaction and Interdependence9 subtopics

D - Continuity and Change12 subtopics

Cytokinesis Splits the Cytoplasm Between Two Daughter Cells

In Animal Cells, a Cleavage Furrow Pinches the Cell in Two

Steps of Cytokinesis in Animal Cells

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account

Cytokinesis Splits the Cytoplasm Between Two Daughter Cells

In Animal Cells, a Cleavage Furrow Pinches the Cell in Two

Steps of Cytokinesis in Animal Cells

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account