Mineral salts: uptake against the gradient
General Science · Grade 10 · about 40 minutes
Why minerals need energy, why waterlogged soil starves a crop of nutrients, and how this shows on a Kenyan farm.
Sign in to read this lesson
Lessons are for learners and teachers with an account. Browsing the curriculum — subjects, strands and what each sub-strand covers — stays open to everyone.
- 8 sections of explanation, worked examples and diagrams
- 1 practice task with hints and worked answers
- A quiz that marks itself as you go
- Your progress kept across every subject you take
Other lessons in this sub-strand
- How water and food move in a plant
- Transpiration: the pull that lifts water
- Root hairs: the plant’s drinking surface
- Mineral salts: uptake against the gradient
- Inside xylem: dead tubes that hold a tree up
- Cohesion, adhesion and the unbroken column
- Inside phloem: living tubes for food
- Ringing a shoot: evidence for translocation
- Stomata and guard cells
- Investigating transpiration with a potometer
- Other ways to investigate transpiration
- Transport, transpiration and plant life in Kenya