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Unit 1 of 2

Cells, Organ Systems and Ecosystems

WJEC GCSE Science (Double Award) — Biology · 45 lessons · 38 quizzes

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1.1

Unit 1 overview: Cells, Organ Systems and Ecosystems20 min

1.1.1

Animal and Plant Cells20 min

1.1.2

Using Microscopes to Examine Cells20 min

1.1.3

Organisation and Differentiation of Cells20 min

1.1.4

The Process of Diffusion20 min

1.1.5

The Process of Osmosis20 min

1.1.6

The Process of Active Transport20 min

1.1.7

1.1.8

Enzyme-controlled Reactions20 min

1.1.9

Factors Affecting Enzyme Activity20 min

1.1.10

Investigating Factors Affecting Enzyme Action20 min

1.2.1

Aerobic Respiration20 min

1.2.2

Anaerobic Respiration20 min

1.2.3

Human Respiratory System20 min

1.2.4

Breathing20 min

1.2.5

The Bell Jar Model20 min

1.2.6

Adaptations of the Alveolus20 min

1.2.7

Comparing Inspired and Expired Air20 min

1.2.8

The Effects of Smoking20 min

1.3.1

The Need for Digestion20 min

1.3.2

Food Tests20 min

1.3.3

Enzymes in Digestion20 min

1.3.4

The Human Digestive System20 min

1.3.5

Peristalsis20 min

1.3.6

Function of Bile20 min

1.3.7

Absorption of Substances in the Small Intestine20 min

1.3.8

The Products of Digestion20 min

1.3.9

Diet and Energy Content of Food20 min

1.3.10

Investigating the Energy Content of Foods20 min

1.4.1

The Blood20 min

1.4.2

The Human Heart20 min

1.4.3

The Human Circulatory System20 min

1.4.4

Capillary Networks20 min

1.4.5

Cardiovascular Disease20 min

1.5.1

Photosynthesis20 min

1.5.2

Conditions Needed for Photosynthesis20 min

1.5.3

Investigating Photosynthesis20 min

1.5.4

Investigating the Rate of Photosynthesis20 min

1.6.1

Food Chains and Food Webs20 min

1.6.2

Energy Transfers20 min

1.6.3

Pyramids of Numbers and Biomass20 min

1.6.4

Human Impact on the Environment20 min

1.6.5

Detecting Pollution20 min

1.6.6

Heavy Metal Pollution20 min

1.6.7

Water Pollution20 min

Practice for this unit

1.1.1 Animal and Plant Cells - MCQ practice (50 questions)

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1.1.1 Animal and Plant Cells - MCQ practice part 2 (12 questions)

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1.1.2 Using Microscopes to Examine Cells - MCQ practice (41 questions)

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1.1.3 Organisation and Differentiation of Cells - MCQ practice (29 questions)

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1.1.4 The Process of Diffusion - MCQ practice (7 questions)

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1.1.5 The Process of Osmosis - MCQ practice (9 questions)

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1.1.6 The Process of Active Transport - MCQ practice (12 questions)

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1.1.7 Enzymes - MCQ practice (19 questions)

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1.1.8 Enzyme-controlled Reactions - MCQ practice (16 questions)

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1.1.9 Factors Affecting Enzyme Activity - MCQ practice (50 questions)

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1.1.9 Factors Affecting Enzyme Activity - MCQ practice part 2 (1 questions)

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1.1.10 Investigating Factors Affecting Enzyme Action - MCQ practice (3 questions)

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1.2.1 Aerobic Respiration - MCQ practice (13 questions)

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1.2.2 Anaerobic Respiration - MCQ practice (45 questions)

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1.2.3 Human Respiratory System - MCQ practice (17 questions)

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1.2.4 Breathing - MCQ practice (16 questions)

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1.2.5 The Bell Jar Model - MCQ practice (16 questions)

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1.2.6 Adaptations of the Alveolus - MCQ practice (6 questions)

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1.2.7 Comparing Inspired and Expired Air - MCQ practice (13 questions)

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1.3.2 Food Tests - MCQ practice (21 questions)

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1.3.3 Enzymes in Digestion - MCQ practice (25 questions)

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1.3.4 The Human Digestive System - MCQ practice (36 questions)

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1.3.5 Peristalsis - MCQ practice (9 questions)

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1.3.6 Function of Bile - MCQ practice (4 questions)

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1.3.8 The Products of Digestion - MCQ practice (8 questions)

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1.3.9 Diet and Energy Content of Food - MCQ practice (38 questions)

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1.4.1 The Blood - MCQ practice (12 questions)

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1.4.2 The Human Heart - MCQ practice (24 questions)

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1.4.3 The Human Circulatory System - MCQ practice (23 questions)

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1.4.4 Capillary Networks - MCQ practice (12 questions)

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1.4.5 Cardiovascular Disease - MCQ practice (9 questions)

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1.5.1 Photosynthesis - MCQ practice (3 questions)

Marked questions with instant feedback and a full review.

1.5.2 Conditions Needed for Photosynthesis - MCQ practice (13 questions)

Marked questions with instant feedback and a full review.

1.5.3 Investigating Photosynthesis - MCQ practice (10 questions)

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1.5.4 Investigating the Rate of Photosynthesis - MCQ practice (12 questions)

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1.6.1 Food Chains and Food Webs - MCQ practice (8 questions)

Marked questions with instant feedback and a full review.

1.6.2 Energy Transfers - MCQ practice (15 questions)

Marked questions with instant feedback and a full review.

1.6.3 Pyramids of Numbers and Biomass - MCQ practice (43 questions)

Marked questions with instant feedback and a full review.