IB SL Biology: Cell Division

mcgowan-w-10
Mind Map by , created over 5 years ago

Mind Map on IB SL Biology: Cell Division, created by mcgowan-w-10 on 05/29/2014.

116
24
0
Tags
mcgowan-w-10
Created by mcgowan-w-10 over 5 years ago
GCSE Biology Quiz
joannaherbert
Animal vs. Plant Cells
JimJam5
Pathogens and Immunity
Elena Cade
Study Planner
indibharat
Roles of Education
Isobel Wagner
Biology AQA 3.1.3 Cells
evie.daines
Cell Transport
Elena Cade
Plant and animal cells
charlotteireland
GCSE Biology Quiz
Andrea Leyden
Cell Structure
daniel.praecox
IB SL Biology: Cell Division
1 Interphase
1.1 G1
1.1.1 Period of growth
1.1.2 DNA transcription
1.1.3 Protein synthesis
1.2 S phase
1.2.1 All DNA in nucleus is replicated
1.3 G2
1.3.1 Cell prepares for division
1.4 Longest phase of cell cycle
1.5 Increase in mitochondria/chloroplasts
2 Mitosis
2.1 Occurs after interphase
2.1.1 Tissue repair, growth, embryonic dev. and asexual reproduction
2.2 Early prophase
2.2.1 Chromosomes become observable due to supercoiling
2.2.2 Spindle microtubules are growing
2.3 Late prophase
2.3.1 Each chromosome = two chromatids
2.3.1.1 Chromatids held together by centromere
2.3.1.1.1 Genetically identical - formed by DNA replication
2.3.2 Spindle microtubules extend from poles to equator
2.4 Metaphase
2.4.1 Nuclear membrane has broken down
2.4.1.1 Chromosomes have migrated to equator
2.4.2 Spindle microtubules from both poles attach to each centromere
2.5 Anaphase
2.5.1 Centromeres divided; chromatids have become chromosomes
2.6 Early telophase
2.6.1 Chromosomes have reached poles
2.6.1.1 Nuclear membranes begin to form
2.6.2 Spindle microtubules break down
2.7 Late telophase
2.7.1 Chromosomes uncoil, no longer indiv. visible
2.7.2 Cell divides :CYTOKINESIS - two cells with genetically identical nuclei
2.8 Tumours
2.8.1 The result of uncontrolled cell division; can occur in any organ or tissue

Media attachments