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arvin_infinity
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#1
State two processes that occur in a cell during interphase to prepare for a meiotic division.
One of the point in the MS is :
wondered if this is just referring to the fact that organelles such as mitochondria-chloroplast are synthesises and since they have double membrane ..
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One of the point in the MS is :
- synthesis of membrane
wondered if this is just referring to the fact that organelles such as mitochondria-chloroplast are synthesises and since they have double membrane ..
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Pride
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#2
well that's just an answer you would have got a mark for, it's not a reference to that really.
most people would have said replication of DNA, organelle replication/synthesis, protein synthesis, cell growth etc.
most people would have said replication of DNA, organelle replication/synthesis, protein synthesis, cell growth etc.
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Elwyn
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#3
Probably relating to the fact that as the cell is preparing to divide it needs to synthesise more membrane material so there's enough for two cells.
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arvin_infinity
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#4
(Original post by Pride)
well that's just an answer you would have got a mark for, it's not a reference to that really.
most people would have said replication of DNA, organelle replication/synthesis, protein synthesis, cell growth etc.
well that's just an answer you would have got a mark for, it's not a reference to that really.
most people would have said replication of DNA, organelle replication/synthesis, protein synthesis, cell growth etc.
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arvin_infinity
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#5
(Original post by Elwyn)
Probably relating to the fact that as the cell is preparing to divide it needs to synthesise more membrane material so there's enough for two cells.
Probably relating to the fact that as the cell is preparing to divide it needs to synthesise more membrane material so there's enough for two cells.
correct me if am wrong
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Elwyn
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#6
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#6
(Original post by arvin_infinity)
Well, cell is not preparing to divide but nucleus is preparing to divide!!
correct me if am wrong
Well, cell is not preparing to divide but nucleus is preparing to divide!!
correct me if am wrong
The main thing you need to appreciate is that the cell needs to grow and therefore requires a bigger membrane.
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thegodofgod
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#7
(Original post by Elwyn)
Well, technically interphase isn't a stage of mitosis. Mitosis is the process of nuclear division, and so prophase is actually the first stage. But I think for A-level (I assume that's what stage you're at) they say interphase is a stage of mitosis.
The main thing you need to appreciate is that the cell needs to grow and therefore requires a bigger membrane.
Well, technically interphase isn't a stage of mitosis. Mitosis is the process of nuclear division, and so prophase is actually the first stage. But I think for A-level (I assume that's what stage you're at) they say interphase is a stage of mitosis.
The main thing you need to appreciate is that the cell needs to grow and therefore requires a bigger membrane.
As far as AQA is concerned, you get:
- G1
- S
- G2
- Prophase
- Metaphase
- Anaphase
- Telophase
- Cytokinesis
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Pride
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#8
(Original post by Elwyn)
Well, technically interphase isn't a stage of mitosis. Mitosis is the process of nuclear division, and so prophase is actually the first stage. But I think for A-level (I assume that's what stage you're at) they say interphase is a stage of mitosis.
The main thing you need to appreciate is that the cell needs to grow and therefore requires a bigger membrane.
Well, technically interphase isn't a stage of mitosis. Mitosis is the process of nuclear division, and so prophase is actually the first stage. But I think for A-level (I assume that's what stage you're at) they say interphase is a stage of mitosis.
The main thing you need to appreciate is that the cell needs to grow and therefore requires a bigger membrane.
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cptbigt
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#9
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#9
Various things are happening during the interphase stage of the cell divisional cycle, some include:
G1 - Highly active stage of protein synthesis and general metabolic activity, cell growth including lipid synthesis for the plasma membrane and other membranes, cytoplasmic volume increases, organelle biogenesis
S - DNA replication, DNA repair
G2 - Additional DNA repair checks, protein synthesis, final stages of cell growth
G1 - Highly active stage of protein synthesis and general metabolic activity, cell growth including lipid synthesis for the plasma membrane and other membranes, cytoplasmic volume increases, organelle biogenesis
S - DNA replication, DNA repair
G2 - Additional DNA repair checks, protein synthesis, final stages of cell growth
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Elwyn
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#10
(Original post by Pride)
well no, at a-level, they say it's a stage of 'the mitotic cycle' but not mitosis which is 'PMAT', it takes place before it. The a-level syllabus splits interphase into 3 sections too, G1, S, and G2.
well no, at a-level, they say it's a stage of 'the mitotic cycle' but not mitosis which is 'PMAT', it takes place before it. The a-level syllabus splits interphase into 3 sections too, G1, S, and G2.
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Pride
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#11
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#11
(Original post by Elwyn)
WJEC don't. They were terrible at teaching cell division.
WJEC don't. They were terrible at teaching cell division.
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arvin_infinity
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#12
(Original post by cptbigt)
Various things are happening during the interphase stage of the cell divisional cycle, some include:
G1 - Highly active stage of protein synthesis and general metabolic activity, cell growth including lipid synthesis for the plasma membrane, cytoplasmic volume increases, organelle biogenesis
S - DNA replication, DNA repair
G2 - Additional DNA repair checks, protein synthesis, final stages of cell growth
Various things are happening during the interphase stage of the cell divisional cycle, some include:
G1 - Highly active stage of protein synthesis and general metabolic activity, cell growth including lipid synthesis for the plasma membrane, cytoplasmic volume increases, organelle biogenesis
S - DNA replication, DNA repair
G2 - Additional DNA repair checks, protein synthesis, final stages of cell growth
Also wondered whether is a replication or synthesis of organelles?
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cptbigt
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#13
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#13
(Original post by arvin_infinity)
so synthesis of membrane is reffering to synthesis of plasma membrane?
Also wondered whether is a replication or synthesis of organelles?
so synthesis of membrane is reffering to synthesis of plasma membrane?
Also wondered whether is a replication or synthesis of organelles?
"Organelle biogenesis" - generation of new organelles is usually labelled as a G1 event
Although it's likely that it occurs throughout the entirety of interphase in most species.
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Isabelle1234567
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#14
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