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Lessons in this unit

Lesson 1

The nervous system

Lesson 2

Reflex arcs

Lesson 3

Required practical: Reaction time (Part 1)

Lesson 4

Required practical: Reaction time (Part 2)

Lesson 5

The brain

Lesson 6

The eye

Lesson 7

Correcting vision

Lesson 8

Hormonal responses

Lesson 9

Negative feedback (Higher)

Lesson 10

Regulating body temperature

Lesson 11

Controlling blood sugar levels (Higher)

Lesson 12

Diabetes

Lesson 13

The nervous system and Homeostasis review lesson (Higher)

Lesson 14

Water balance

Lesson 15

The kidney

Lesson 16

Kidney failure

Lesson 17

Hormones in reproduction (Higher)

Lesson 18

Artificial control of fertility (Higher)

Lesson 19

Contraception

Lesson 20

Plant hormones

Lesson 21

Osmoregulation review

Lesson 22

Required practical: Plant hormones (Part 1)

Lesson 23

Required practical: Plant hormones (Part 2)

Lesson 24

Homeostasis review (Higher)

Lesson 25

Scientist case study