EduNinja

EduNinja

1. Cell Structure

1.1 The Microscope in Cell Studies

1.2 Cells as Basic Units of Living Organisms

2. Biological Molecules

2.1 Testing for Biological Molecules

2.2 Carbohydrates and Lipids

3. Enzymes

3.1 Mode of Action

3.2 Factors Affecting Enzyme Action

4. Cell Membranes and Transport

4.1 Fluid Mosaic Membranes

4.2 Movement Into and Out of Cells

5. The Mitotic Cell Cycle

5.1 Replication and Division

5.2 Chromosome Behaviour in Mitosis

6. Nucleic Acids and Protein Synthesis

6.1 Structure of Nucleic Acids and DNA Replication

6.2 Protein Synthesis

7. Transport in Plants

7.1 Structure of Transport Tissues

7.2 Transport Mechanisms

7.2.1—Solutes transported in water

7.2.2—Water transport from soil to xylem

7.2.3—Transpiration from leaves

7.2.4—Hydrogen bonding in water movement

7.2.5—Xerophytic adaptations

7.2.6—Assimilate transport in phloem

7.2.7—Companion cells transfer assimilates

7.2.8—Mass flow in phloem

8. Transport in Mammals

8.1 The Circulatory System

8.2 Transport of Oxygen and Carbon Dioxide

9. Gas Exchange

9.1 The Gas Exchange System

10. Infectious Diseases

10.1 Infectious Diseases

10.2 Antibiotics

11. Immunity

11.1 The Immune System

11.2 Antibodies and Vaccination

Practical assessment skills

Paper 3 Advanced Practical Skills

Mathematical and statistical skills

AS and A Level mathematical requirements

A-Level CAIE Biology AS 7.2.8—Mass flow in phloem Question Bank

7.2.8—Mass flow in phloem

• Mass flow in phloem: hydrostatic pressure gradient from source to sink

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