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Reisolated Reisolated
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10 years ago Edited: 10 years ago, Reisolated
   The division of a bacterial cell into two daughter cells (called binary fission) is accomplished by a protein called FtsZ. FtsZ is very similar to the tubulin subunits that form microtubules in eukaryotes. After the replicated bacterial chromosomes have moved to opposite ends of the cell, a ring of FtsZ proteins forms inside the plasma membrane in the region where the cell will divide. As the FtsZ ring constricts, the plasma membrane and bacterial cell wall fold in and eventually separate into two cells.

   Plant and animal cells also require cytoskeletal proteins for cytokinesis, although the roles these proteins play differ among bacteria, plants, and animals.
   For each space in the table, drag the appropriate label to indicate if the statement is true or false for each group of organisms.

True Or False Answers

1. Cells divide by constriction of a ring of protein. Bacteria:  Animals:  Plants:

2. The presence of a cell wall prevents the cell from dividing by constriction. Bacteria:  Animals:  Plants:

3. Tubulin or tubulin-like molecules function in binary fission (in bacteria) or cytokinesis (in animals and plants). Bacteria:  Animals:  Plants:








Can someone help me out with this question?

Thanks.
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14 Replies
Replies
wrote...
Staff Member
Educator
10 years ago
Sure, but state the question word for word. Looking forward to your reply.
Mastering in Nutritional Biology
Tralalalala Slight Smile
Reisolated Author
wrote...
10 years ago
Wrote it out, sorry about that..
wrote...
Staff Member
Educator
10 years ago
1. Cells divide by constriction of a ring of protein is True for Bacteria. The cell division in bacteria is accomplished by a protein called FtsZ. The FtsZ ring constricts the plasma membrane and causing folding in the cell wall, eventually results in formation of two daughter cells.

2. The presence of a cell wall prevents the cell from dividing by constriction is False for Bacteria. Plants may contain cell wall but it is rigid in nature. So, the contriction of a ring of proteins cannot fold the cell wall but produce a cell wall between the daughter cells by the formation of a cell plate, joining the existing cell wall. Thus presence of cell wall doesn't prevent the cell from dividing by constriction in bacteria.

3. Tubulin subunits or tubulin-like molecules function in the division of the cell is True for Bacteria and Plants, false for Animals.
duddy,  AlejandraPM,  bebebebe1,  cristiano1313
Mastering in Nutritional Biology
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Answer accepted by topic starter
ultihunterultihunter
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Posts: 5
10 years ago
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wrote...
Staff Member
10 years ago
Thanks for the contribution.
- Master of Science in Biology
- Bachelor of Science
wrote...
Staff Member
Educator
10 years ago
Thanks
Mastering in Nutritional Biology
Tralalalala Slight Smile
wrote...
10 years ago
I was stuck on this problem. Thank you so much.
wrote...
10 years ago
Thanks Life Saver Slight Smile
wrote...
9 years ago
FtsZ's fundamental importance in cellular division is evident by its widespread occurrence in eubacteria, archeae, and some eukaryotic organelles and it has been suggested that FtsZ functions as the universal prokaryotic division protein
wrote...
9 years ago
No, the final answer should look like this:

True True False

False False True

True False True
ckinnick,  aajin,  Bonzodog,  k_burtt,  westsidestyle55,  abeveryday,  mhunt6,  rainsrevenge,  deveron,  jajajajo,  kessers989,  josearam91
wrote...
8 years ago
1. TTF
2. FFT
3. TFT
josearam91
wrote...
4 years ago
great
wrote...
4 years ago
thank you
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