Combined Science 0653 — Biology
Cambridge IGCSE Combined Science 0653 Biology: every syllabus unit with lessons and practice.
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Combined Science 0653 — Biology — Cambridge IGCSE Combined Science 0653 Biology: every syllabus unit with lessons and practice.
Units
- B1. Characteristics of Living Organisms and Cells
- B2. Biological Molecules and Enzymes
- B3. Plant Nutrition and Transport
- B4. Human Nutrition and Digestion
- B5. Transport in Humans
- B6. Respiration and Gas Exchange
- B7. Coordination, Response and Homeostasis
- B8. Reproduction and Inheritance
- B9. Organisms and their Environment
B1. Characteristics of Living Organisms and Cells
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1
Unit B1 overview: Characteristics of Living Organisms and Cells -
2
B1.1 Characteristics of living organisms
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3
B1.2 Cell structure
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4
B1.3 Size of specimens
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5
B1.4 Diffusion
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6
B1.5 Osmosis
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7
B1.6 Active transport Core
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8
B1.6 Active transport Core - Check yourself -
9
Unit B2 - Assignment: Cells -
10
Unit B3 - Assignment: Movement into and out of cells
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11
B1.1 Characteristics of living organisms (Part 2)
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12
B1.1 Characteristics of living organisms - Check yourself
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13
B1.2 Cell structure (Part 2)
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14
B1.2 Cell structure - Check yourself
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15
B1.3 Size of specimens (Part 2)
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16
B1.3 Size of specimens - Check yourself
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17
B1.4 Diffusion (Part 2)
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18
B1.4 Diffusion - Check yourself
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19
B1.5 Osmosis (Part 2)
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20
B1.5 Osmosis - Check yourself
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21
B1.6 Active transport (Part 2)
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22
2.1.2 Organisation of Cells
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23
2.1.3 Magnification Formula
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24
2.1.4 Converting Between Units
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25
3.1.1 Diffusion in Biology
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26
3.1.4 Osmosis Experiments
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27
3.1.5 Osmosis in Plants
B2. Biological Molecules and Enzymes
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28
Unit B2 overview: Biological Molecules and Enzymes
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29
B2.1 Biological molecules
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30
B2.1 Biological molecules - Check yourself
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31
B2.2 Enzymes
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32
B2.2 Enzymes - Check yourself
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33
Unit B4 - Assignment: Biological molecules
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34
Unit B5 - Assignment: Enzymes
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35
4.1.1 Chemicals and Life
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36
5.1.2 Enzyme Investigations
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37
5.1.4 Enzymes and Temperature
B3. Plant Nutrition and Transport
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38
Unit B3 overview: Plant Nutrition and Transport
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39
B3.1 Photosynthesis
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40
B3.2 Leaf structure
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41
B3.3 Xylem and phloem
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42
B3.4 Water uptake
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43
B3.5 Transpiration
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44
Unit B6 - Assignment: Plant nutrition
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45
Unit B8 - Assignment: Transport in plants
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46
B3.1 Photosynthesis (Part 2)
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47
B3.1 Photosynthesis (Part 3)
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48
B3.1 Photosynthesis - Check yourself
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49
B3.2 Leaf structure (Part 2)
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50
B3.2 Leaf structure (Part 3)
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51
B3.2 Leaf structure - Check yourself
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52
B3.3 Xylem and phloem (Part 2)
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53
B3.3 Xylem and phloem - Check yourself
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54
B3.4 Water uptake (Part 2)
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55
B3.4 Water uptake - Check yourself
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56
B3.5 Transpiration (Part 2)
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57
B3.5 Transpiration - Check yourself
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58
6.1.2 Chlorophyll
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59
6.1.3 Investigating the Need for Chlorophyll, Light and Carbon Dioxide
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60
6.1.6 Photosynthesis Chemical Equation
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61
8.1.3 Pathway Taken by Water
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62
8.1.5 Investigating Temperature and Wind Speed
B4. Human Nutrition and Digestion
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63
Unit B4 overview: Human Nutrition and Digestion
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64
B4.1 Diet
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65
B4.2 Digestive system
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66
B4.3 Digestion
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67
Unit B7 - Assignment: Human nutrition
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68
B4.1 Diet (Part 2)
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69
B4.1 Diet (Part 3)
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70
B4.1 Diet - Check yourself
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71
B4.2 Digestive system (Part 2)
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72
B4.2 Digestive system (Part 3)
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73
B4.2 Digestive system - Check yourself
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74
B4.3 Digestion (Part 2)
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75
B4.3 Digestion (Part 3)
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76
B4.3 Digestion - Check yourself
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77
7.1.1 Diet and Deficiencies
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78
7.1.6 Hydrochloric Acid
B5. Transport in Humans
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79
Unit B5 overview: Transport in Humans
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80
B5.1 Circulatory systems
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81
B5.2 Heart
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82
B5.3 Blood vessels
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83
B5.4 Blood
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84
B5. Transport in Humans - Check yourself
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85
Unit B9 - Assignment: Transport in animals
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86
Combined Science B5 - Assignment: Transport in Humans
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87
B5.1 Circulatory systems (Part 2)
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88
B5.1 Circulatory systems (Part 3)
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89
B5.1 Circulatory systems - Check yourself
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90
B5.2 Heart (Part 2)
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91
B5.2 Heart (Part 3)
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92
B5.2 Heart - Check yourself
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93
B5.3 Blood vessels (Part 2)
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94
B5.3 Blood vessels (Part 3)
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95
B5.3 Blood vessels - Check yourself
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96
B5.4 Blood (Part 2)
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97
B5.4 Blood (Part 3)
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98
B5.4 Blood - Check yourself
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99
9.1.2 The Mammalian Heart
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100
9.1.3 Monitoring Activity of the Heart
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101
9.1.4 Investigating Effect of Physical Activity on Heart Rate
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102
9.1.5 Coronary Heart Disease
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103
9.1.6 Explaining the Effect of Physical Activity on Heart Rate
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104
9.1.8 Structure and Function of Blood Vessels
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105
9.1.9 Components of Blood
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106
10.1.1 Pathogens and Barriers
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107
10.1.2 Controlling the Spread of Disease
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108
10.1.3 Active Immunity
B6. Respiration and Gas Exchange
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109
Unit B6 overview: Respiration and Gas Exchange
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110
B6.1 Gas exchange in humans
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111
B6.2 Respiration
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112
B6.2 Respiration - Check yourself
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113
Unit B11 - Assignment: Gas exchange in humans
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114
Unit B12 - Assignment: Respiration
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115
Unit B12 - Assignment: Respiration
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116
B6.1 Gas exchange in humans (Part 2)
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117
B6.1 Gas exchange in humans - Check yourself
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118
B6.2 Respiration in cells: aerobic and anaerobic
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119
11.1.1 Features of Gas Exchange Surfaces
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120
11.1.2 The Breathing System
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121
11.1.3 Investigating the Effects of Physical Activity on Breathing
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122
12.1.1 Respiration in Cells
B7. Coordination, Response and Homeostasis
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123
Unit B7 overview: Coordination, Response and Homeostasis
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124
B7.1 Nervous control: neurones, reflex arcs and synapses
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125
Combined Science - B7.1 Nervous control - Check yourself
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126
B7.2 Sense organs: structure and function of the eye
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127
Combined Science - B7.2 The eye - Check yourself
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128
B7.3 Hormones and the endocrine system
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129
Combined Science - B7.3 Hormones - Check yourself
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130
B7.4 Homeostasis: control of body temperature and blood glucose
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131
Combined Science - B7.4 Homeostasis - Check yourself
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132
B7.5 Tropic responses in plants
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133
B7. Coordination, Response and Homeostasis - Check yourself
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134
Combined Science B7 - Assignment: Coordination, Response and Homeostasis
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135
B7.1 Nervous control: neurones, reflex arcs and synapses (Part 2)
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136
B7.1 Nervous control: neurones, reflex arcs and synapses (Part 3)
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137
B7.1 Nervous control: neurones, reflex arcs and synapses (Part 4)
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138
B7.1 Nervous control: neurones, reflex arcs and synapses (Part 5)
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139
B7.2 Sense organs: structure and function of the eye (Part 2)
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140
B7.2 Sense organs: structure and function of the eye (Part 3)
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141
B7.2 Sense organs: structure and function of the eye (Part 4)
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142
B7.2 Sense organs: structure and function of the eye (Part 5)
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143
B7.3 Hormones and the endocrine system (Part 2)
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144
B7.3 Hormones and the endocrine system (Part 3)
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145
B7.3 Hormones and the endocrine system (Part 4)
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146
B7.3 Hormones and the endocrine system (Part 5)
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147
B7.4 Homeostasis: control of body temperature and blood glucose (Part 2)
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148
B7.4 Homeostasis: control of body temperature and blood glucose (Part 3)
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149
B7.4 Homeostasis: control of body temperature and blood glucose (Part 4)
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150
B7.4 Homeostasis: control of body temperature and blood glucose (Part 5)
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151
B7.5 Tropic responses in plants (Part 2)
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152
B7.5 Tropic responses in plants (Part 3)
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153
B7.5 Tropic responses in plants (Part 4)
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154
B7.5 Tropic responses in plants (Part 5)
B8. Reproduction and Inheritance
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155
Unit B8 overview: Reproduction and Inheritance
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156
B8.1 Sexual reproduction in plants
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157
B8.2 Sexual reproduction in humans
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158
Unit B14 - Assignment: Reproduction
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159
B8.1 Sexual reproduction in plants (Part 2)
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160
B8.1 Sexual reproduction in plants (Part 3)
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161
B8.1 Sexual reproduction in plants (Part 4)
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162
B8.1 Sexual reproduction in plants - Check yourself
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163
B8.2 Sexual reproduction in humans (Part 2)
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164
B8.2 Sexual reproduction in humans (Part 3)
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165
B8.2 Sexual reproduction in humans (Part 4)
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166
B8.2 Sexual reproduction in humans - Check yourself
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167
14.1.3 Sexual Hormones in Humans
B9. Organisms and their Environment
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168
Unit B9 overview: Organisms and their Environment
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169
B9.1 Energy flow
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170
B9.2 Food chains and food webs
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171
B9.3 Carbon cycle
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172
Unit B15 - Assignment: Organisms and their environment
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173
B9.1 Energy flow (Part 2)
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174
B9.1 Energy flow - Check yourself
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175
B9.2 Food chains and food webs (Part 2)
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176
B9.2 Food chains and food webs - Check yourself
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177
B9.3 Carbon cycle (Part 2)
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178
B9.3 Carbon cycle - Check yourself
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179
16.1.1 The Importance of Biodiversity
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180
16.1.2 Endangered Species
FAQ 1
Faq Content 1
FAQ 2
Faq Content 2
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