Siyavula: Life Sciences Grade 10 - Cd3wd.com

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40 CHAPTER 1. LIFE AT THE MOLECULAR, CELLUAR AND TISSUE LEVELCell division 121 Mitosis 122 M Cell growth stops atthis stage and cellularenergy is focused onthe orderly division intotwo daughter cells. Acheckpoint in the middleof mitosis (MetaphaseCheckpoint 123 ) ensuresthat the cell is ready tocomplete cell division.Table Phases of the cell cycleTable 1.6108 http://en.wikipedia.org/wiki/G0_phase109 http://en.wikipedia.org/wiki/Interphase110 http://en.wikipedia.org/wiki/G1_phase111 http://en.wikipedia.org/wiki/Cell_cycle_checkpoint#G1_.28Restriction.29_Checkpoint112 http://en.wikipedia.org/wiki/Cell_cycle_checkpoint#G1_.28Restriction.29_Checkpoint113 http://en.wikipedia.org/wiki/Cell_cycle_checkpoint#G1_.28Restriction.29_Checkpoint114 http://en.wikipedia.org/wiki/DNA115 http://en.wikipedia.org/wiki/S_phase116 http://en.wikipedia.org/wiki/DNA_replication117 http://en.wikipedia.org/wiki/G2_phase118 http://en.wikipedia.org/wiki/Cell_cycle_checkpoint#G2_Checkpoint119 http://en.wikipedia.org/wiki/Cell_cycle_checkpoint#G2_Checkpoint120 http://en.wikipedia.org/wiki/Cell_cycle_checkpoint#G2_Checkpoint121 http://en.wikipedia.org/wiki/Cell_division122 http://en.wikipedia.org/wiki/Mitosis123 http://en.wikipedia.org/wiki/Cell_cycle_checkpoint#Metaphase_Checkpoint
411.3.1.3 Stages of MitosisFigure 1.23Diagram - allium cells in the dierent cycle of mitosis.1.3.1.3.1 Interphase• The cell spends most of its life in the interphase.• During this phase the cell grows to its maximum size and performs its normal functions.1.3.1.3.2 Prophase• The chromatin (a protein that chromosomes are made of) condenses into chromosomes (human cellshave 46 chromosomes 23 from your father and 23 from your mother).• The nuclear membrane disappears.• The centriole splits and starts to move to opposite poles.• Spindle threads form between the poles.
Page 1: Siyavula: Life Sciences Grade 10Col
Page 4 and 5: This selection and arrangement of c
Page 7 and 8: Subject Orientation 1What is Life S
Page 9: school, high school or university.
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Page 21 and 22: 151.1.3.3.4 Biological importance
Page 23 and 24: 17Figure 1.81.2.6.3Functioning of e
Page 25 and 26: 19Figure 1.10Figure. X. Aloe vera h
Page 27 and 28: • Inorganic compounds can contain
Page 29 and 30: 23Figure 1.13By grinding his own le
Page 31 and 32: 25Figure 1.14Need annotated image w
Page 33 and 34: 27Figure 1.16Transmission electron
Page 35 and 36: 29Figure 1.181. Nucleolus 262. Nucl
Page 37 and 38: 1.2.1.1.6 MitochondriaA mitochondri
Page 39 and 40: 1.2.1.1.10 Structures unique to ani
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Page 43 and 44: transport vesicleA vesicle that is
Page 45: State Phase Abbreviation Descriptio
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Page 51 and 52: 45You are required to produce a TYP
Page 53 and 54: 47• two heat-resistant test tubes
Page 55 and 56: 49Observation• observe the reacti
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Page 69 and 70: 2.5 Unit 2.2 Investigation 1 - Tree
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91Figure 2.18Table 2.7.Human heartb
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93Figure 2.21Table 2.8Heartbeats ar
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95Figure 2.23Table 2.10The heart co
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2.10.15 Middle layer smooth muscle
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Chapter 3Environmental studies3.1 B
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The troposphere is the atmospheric
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3.2 Environment 63.2.1 Environment3
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105Figure 3.1Light reects o of the
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To discover how to reduce your carb
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1093.2.1.7.3 The Story of StuTo see
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Chapter 4Diversity, change and cont
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INDEX 113Index of Keywords and Term
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ATTRIBUTIONS 115AttributionsCollect
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ATTRIBUTIONS 117Module: "UNIT 2.3 T
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