IGCSE Coordinated Sciences Biology 0654 / 0973 (9-1)
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IGCSE Coordinated Sciences Double Award Biology Video Lessons 2025/2026/2027 Exams / 14- Coordination and Response Set-3- Coordinated Sciences Videos
14- coordination and response set-3- coordinated sciences videos
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14- Coordination and Response Set-3- Coordinated Sciences Videos /2025/2026/2027 Exams

IGCSE Coordinated Sciences Double Award Biology Video Lessons 2025/2026/2027 Exams
1-Characteristics and classification of living organisms Coordinated Sciences Videos
1
The seven charatceristics of living organisms video lecture Locked
2
The binomial system Locked
3
Features of a fungus Locked
5
Features of prokaryotes Locked
6
Features of birds Locked
7
Features of reptiles Locked
8
Features of amphibians Locked
9
Features of a fish Locked
10
Features of protoctists Locked
11
Features of animal kingdom Locked
12
Features of mammals Locked
1-Organisation of Organisms Coordinated Sciences Videos
1
Structure of a plant cell video lecture Locked
2
Structure of animal cells Locked
3
Cells-tissues-organs-organ-system Locked
4
Comparing plant and animal cells Locked
5
The ciliated cells Locked
6
Root hair cells Locked
7
Pallisade cells Locked
8
The specialised cells-red blood cells Locked
3-Movement Into and Out of Cells Coordinated Sciences Videos
3.1.1
Diffusion-Importance-of-Diffusion Locked
3.1.2
Factors-affecting-diffusion Locked
3.2.1
Osmosis Locked
3.2.2
Role-of-water Locked
3.2.3
Plant-Tissues-in-Different-Concentrations Locked
3.3
Active-Transport Locked
4-Biological Molecule Videos Coordinated Sciences Videos
1
Biological molecules- Basics Locked
2
Test for vitamin c Locked
3
Test for proteins Locked
4
Test for reducing sugars Locked
5
test for fats Locked
5-Enzymes Videos Coordinated Sciences Videos
5.1.1
Enzyme-Basics Locked
5.1.2
Enzyme-Action Locked
5.1.3
Effect-of-temperature-on-enzyme-activity Locked
5.1.4
Effect-of-pH-on-enzyme-activity Locked
6- Plant Nutrition Videos Coordinated Sciences Videos
6.1.1
Plant-nutrition-Photosynthesis Locked
6.1.2
Subsequent-use-and-storage-of-carbohydrates Locked
6.1.3
Magnesium-Nitrate-ions Locked
6.2
Leaf-Structure Locked
7-Human Nutrition Videos Coordinated Sciences Videos
7.1
7.2-Balanced-Diet-Dietary-Sources Locked
7.3
Factors-affecting-dietary-needs-of-humans Locked
Physical-digestion Locked
7.4
Effects-of-malnutrition Locked
7.5
Causes-effects-vitamin D-Iron Locked
7.6
Key-definitions Locked
7.7
Alimentary-canal-organs-associated-organs-identification Locked
7.8
Alimentary-canal-organs and functions Locked
7.9
Absorption Locked
8-Transport in Plants Videos Coordinated Sciences Videos
8.1.1
Function-of-xylem-and-phloem Locked
8.1.2
Structure-and-Function-Of-xylem Locked
8.2.1
Structure-and-Function-Of-root-hair-cells Locked
8.2.2
Pathway taken-by-water from roots to leaves Locked
8.3
Transpiration Locked
8.4
Translocation Locked
9-Transport in Animals Videos Coordinated Sciences Videos
9.1.1
Circulatory-System-Single-Double-Circulation Locked
9.1.2
Advantages-of-double-circulation Locked
9.2.2
Walls-of-atria-and-ventricles Locked
9.2.3
Importance-of-septum Locked
9.2.4
Working-of-the-heart Locked
9.2.5
Effect-of-physical-activity-on-heart-rate Locked
9.2.6
CHD Locked
9.3.1
Comparing-Arteries-Capillaries-Veins Locked
9.3.2
Blood-Vessels-connected-to-major-organs Locked
9.4.1
Components-of-Blood-and-their-Functions Locked
9.4.2
Blood-Clotting Locked
9.4.3
Functions-of-lymphocytes-Phagocytes Locked
10-Disease and Immunity Videos Coordinated Sciences Videos
10.1.1
Disease-and-immunity-spread-of-pathogens Locked
10.1.2
Antibodies-and-Antigens Locked
10.1.3
Passive-Immunity Locked
10.1.4
Body-Defences Locked
10.1.5
Cholera Locked
11-Gas Exchange Videos Coordinated Sciences Videos
11.1.1
Features-of-gas-exchange-surfaces Locked
11.1.2
Parts-of-the-breathing-system Locked
11.1.3
Inhalation-Exhalation-Process Locked
11.1.4
Inspired-air-Expired-air-composition Locked
11.1.5
Physical-activity-Rate-Depth-of-Breathing Locked
11.1.6
Role-of-Goblet-cells-Ciliated-Cells-Mucus Locked
12-Respiration Videos Coordinated Sciences Videos
12.1
Use-of-energy-in-living-organisms Locked
12.2
Aerobic Respiration Locked
12.3
Anaerobic-Respiration Locked
13-Excretion in Humans Coordinated Sciences Videos
13.1.1
Excretion-Basics Locked
13.1.2
Structure of kidneys Locked
13.1.3
Excretory System Locked
13.1.4
Structure of nephron Locked
13.1.5
Deamination Locked
13.1.6
Assimilation of amino acids Locked
14- Coordination and Response Set-1- Coordinated Sciences Videos
14.1.1
Nervous-system-Basics Locked
14.1.2
Types-of-neurons Locked
14.1.3
Synapse Locked
14.1.4
Events-at-a-synapse Locked
14.2.1
Defining-Sense-Organs Locked
14.2.2
Structure-Function-Of-Parts-of-Eye Locked
14.2.3
Pupil-Reflex-Light-Intensity-Pupil-Diameter Locked
14.2.4
Accomodation Locked
14.2.5
Rods-and-Cones Locked
14- Coordination and Response Set-2- Coordinated Sciences Videos
14.3.1
Hormones-Endocrine-Glands Locked
14.3.2
Adrenaline-Meaning-and-Effects Locked
14.3.3
Nervous-Hormonal-Control Locked
14.4.1
Homeostasis-Homeostatic-control-Set-point Locked
14.4.2
Homeostasis-Blood-Glucose-Concentration Locked
14.4.3
Type-1-Diabetes Locked
14.4.4
Skin-Homeostasis-Vasoconstriction-Vasodialation Locked
14.4.5
Shunt-Vessels-Homeostasis-Low-Temperatures Locked
14- Coordination and Response Set-3- Coordinated Sciences Videos
14.5.1
Gravitropism Locked
14.5.2
Phototropism-Geotropism-and-Auxin Locked
15-Drugs-Coordinated Sciences Videos
Drugs-Complete Lesson Locked
16-Reproduction-Set-1-Coordinated Sciences Videos
16.1.1
Asexual Reproduction Locked
16.1.2
Asexual Reproduction-Species in the wild-Advantages-Disadvantages Locked
16.2.1
Sexual-Reproduction-Key-Terms Locked
16.2.2
Sexual Reproduction-Advantages-Disadvantages Locked
16-Reproduction-Set-2-Coordinated Sciences Videos
16.2.6
Conditions for seed-germination Locked
16.3.1
Insect-pollinated-flowers-Structure-Function Locked
16.3.2
Wind-pollinated-flowers-Structure-Function Locked
16.3.3
Pollination Locked
16.3.4
Growth-of-the-pollen-tube Locked
16.3.5
Potential effects-Self-Cross-Pollination Locked
16-Reproduction-Set-3-Coordinated Sciences Videos
16.4.1
Reproduction-Male-reproductive-system Locked
16.4.2
Reproduction-Female-reproductive-system Locked
16.4.3
Reproduction-Adaptive-features-of-egg-cells Locked
16.4.4
Comparing-male-female-gametes Locked
16.4.5
Fertilisation-Zygote Locked
16.4.6
Labelling-Amniotic-fluid-amniotic-sac-placenta-umbilical-cord Locked
16.4.7
Role-of-placenta-umblical-cord Locked
16.4.8
Role-of-umbilical-cord-in-exchange-of-substances Locked
16.4.9
Advantages of sexual reproduction in humans Locked
16-Reproduction-Set-4-Coordinated Sciences Videos
16.5
Hormones-Secondary-Sexual-Characteristics Locked
16.5.2
Menstrual-Cycle Locked
16-Reproduction-Set-5-Coordinated Sciences Videos
16.6
Sexually-transmitted-Infections Locked
17-Inheritance-Coordinated Sciences Videos
17.1.2
Sex-Inheritance Locked
17.1.3
Making-proteins Locked
17.1.6
Amino-acid-and-shape-of-proteins Locked
17.2
Mitosis Locked
17.3
Meosis Locked
17.4.1
Monohybrid-inheritance-key-terms Locked
17.4.2
Pedigree-diagrams Locked
17.4.3
Inheritance-of-ABO-Blood-groups Locked
17.4.4
Monohybrid-Inheritance-Codominance-Sex-Linkage Locked
18-Variation and Selection-Coordinated Sciences Videos
18.1.1
Variation Locked
18.1.2
Gene-mutation Locked
18.2.1
Adaptive-Features-Definition-and-Application-Question Locked
18.2.2
Adaptive-features-Hydrophytes Locked
18.2.3
Adaptive-Features-Of-Desert-Plants Locked
18.2.4
Adaptation-of-roots-to-deserts Locked
18.3.2
Selective-breeding Locked
18.3.3
Antibiotic-Resistant-Bacteria Locked
18.3.4
Natural-Artificial-Selection-Differences Locked
18.3.5
Natural-Selection Locked
19-Organisms and their Environment-Set-1--Coordinated Sciences Videos
19.1
Organisms-and-their-environment-Basics Locked
19.2.1
Food-Chain-Consumer-Producer-Definition Locked
19.2.2
Interpreting-food-chains-food-webs Locked
19.2.3
Impact-of-human-activities-on-food-chains-webs Locked
19.2.4
Trophic-levels-energy-losses Locked
19.2.5
Pyramid-of-biomass-numbers Locked
19.2.6
Pyramid-of-energy-advantages Locked
19-Organisms and their Environment-Set-2-Coordinated Sciences Videos
19.3.1
Carbon-Cycle Locked
19.3.2
Nitrogen cycle Locked
19.4.1
Population-key-terms Locked
19.4.2
Labelling-a-sigmoid-curve Locked
19.4.3
Sigmoid-curve-Stages-Reasons-for each-stage Locked
19.4.4
Factors-affecting-population-growth Locked
20-Human Influences on Ecosystems-Set-1-Coordinated Sciences Videos
20.1.1
How-humans-have-increased-food-production Locked
20.1.2
Advantages-Disadvantages of-monocultures Locked
20.1.3
Advantages-Disadvantages-Intensive-LiveStock-Production Locked
20.2.1
Biodiversity Locked
20.2.2
Reasons-for-Habitat-Destruction Locked
20.2.3
Undesirable effects of deforestation Locked
20-Human Influences on Ecosystems-Set-2-Coordinated Sciences Videos
20.3.1
Effects-of-Untreated-sewage-Excess-Fertiliser-Aquatic-Ecosystems Locked
20.3.2
Eutrophication Locked
20.3.3
Effects-Of-Non-biodegradable-Plastics-In-Aquatic-Terristrial-Ecosystems Locked
20.3.4
Sources-Effects-Of-Pollution-Of-Air-CO2-Methane Locked
20-Human Influences on Ecosystems-Set-3-Coordinated Sciences Videos
20.4.0
Sustainable-Resources Locked
20.4.1
Explain-how-forests-can-be-conserved Locked
20.4.2
Explain-how-fish-stocks-can-be-conserved Locked
20.4.3
Why-organisms-become-endangered-or-extinct Locked
20.4.4
Conserving-Endangered-Species Locked
20.4.5
Reasons-for-Conservation-Programmes Locked
20.4.6
AI-and-IVF Locked
20.4.7
Risk-to-a-species-if-population-size-decreases Locked
21-Biotechnology and Genetic Modification-Coordinated Sciences Videos
21.1.1
Biotech-Genetic-Engineering-Use of -bacteria-used-in-biotechnology Locked
21.1.2
Biotech-Genetic-Engineering-Why -bacteria-used-in-biotechnology Locked
21.2.1
Lactose-free-milk Locked
21.2.2
Biological-washing-powders Locked
21.2.3
Use-of-fermenters Locked
21.2.4
Anaerobic-respiration-of-yeast-Ethanol-manufacture Locked
21.2.5
Yeast-and-Bread-making Locked
21.2.6
Pectinase-Fruit-Juice-Extraction Locked
21.3.1
Genetic-Modification Locked
21.3.2
Genetically-Modifying-crops-adv-disadvantages Locked