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One term, and every place the course uses it — the revision notes that teach it, the multiple choice questions that check it, and the detailed questions that examine it.
31 sub-topics use osmosis · showing 1–20
AQA · Biology · 4.1 Cell biology
4.1.3Transport in cells
Water moves across cell membranes by osmosis. Osmosis is the diffusion of water from a dilute solution to a concentrated solution through a partially permeable membrane. "Partially permeable" means the membrane lets water through
in Osmosis and 3 other sections
Edexcel · Biology · 1 Key concepts in biology
1.3Transport into and out of cells
Water moves across cell membranes by osmosis. Osmosis is the diffusion of water from a dilute solution to a concentrated solution through a partially permeable membrane. "Partially permeable" means the membrane lets water through
in Osmosis and 3 other sections
AQA · Biology · 4.2 Organisation
4.2.3Plant tissues, organs and systems
adapted to it. Root hair cells are adapted for the efficient uptake of water by osmosis, and of mineral ions by active transport — the long thin extension gives a large surface area, and the many mitochondria
in Plant organ system and 1 other section
Edexcel · Biology · 6 Plant structures and their functions
6.2Transport in plants
adapted to it. Root hair cells are adapted for the efficient uptake of water by osmosis, and of mineral ions by active transport — the long thin extension gives a large surface area, and the many mitochondria
in Plant organ system
AQA · Chemistry · 4.10 Using resources
4.10.1Using the Earth's resources and obtaining potable water
required. Desalination can be done by distillation, or by processes that use membranes such as reverse osmosis. These processes require large amounts of energy. You should be able to describe the differences in treatment of ground
in Potable water and 2 other sections
Edexcel · Chemistry · 2 States of matter and mixtures
2.2Separating and purifying mixtures
required. Desalination can be done by distillation, or by processes that use membranes such as reverse osmosis. These processes require large amounts of energy. You should be able to describe the differences in treatment of ground
in Potable water and 2 other sections
AQA · Biology · 4.5 Homeostasis and response
4.5.3Hormonal coordination in humans
body fluids act directly on cells. If body cells lose or gain too much water by osmosis they do not function efficiently: in fluid that is too dilute water enters and the cell swells
in Maintaining water and nitrogen balance
Edexcel · Biology · 7 Animal coordination, control and homeostasis
7.5The kidney and osmoregulation
body fluids act directly on cells. If body cells lose or gain too much water by osmosis they do not function efficiently: in fluid that is too dilute water enters and the cell swells
in Maintaining water and nitrogen balance
AQA · Biology · 4.1 Cell biology
4.1.1Cell structure
Used in 14 questions on this sub-topic.
Edexcel · Biology · 1 Key concepts in biology
1.1Cells and microscopy
Used in 14 questions on this sub-topic.
Edexcel · Chemistry · 4 Extracting metals and equilibria
4.2Recycling and life cycle assessment
Used in 5 questions on this sub-topic.
AQA · Biology · 4.4 Bioenergetics
4.4.1Photosynthesis
living processes Starch Insoluble, so it stores well without affecting the water balance of the cell by osmosis Fats and oils A dense energy store, common in seeds Cellulose Strengthens the cell wall Amino acids, then
in Uses of glucose from photosynthesis and 1 other section
Edexcel · Biology · 7 Animal coordination, control and homeostasis
7.1Hormones and the endocrine system
Used in 4 questions on this sub-topic.
Edexcel · Biology · 6 Plant structures and their functions
6.1Photosynthesis
living processes Starch Insoluble, so it stores well without affecting the water balance of the cell by osmosis Fats and oils A dense energy store, common in seeds Cellulose Strengthens the cell wall Amino acids, then
in Uses of glucose from photosynthesis
Edexcel · Biology · 8 Exchange and transport in animals
8.1Exchange surfaces and diffusion
Used in 7 questions on this sub-topic.
AQA · Biology · 4.1 Cell biology
4.1.2Cell division
Used in 6 questions on this sub-topic.
Edexcel · Biology · 2 Cells and control
2.1Cell division and growth
Used in 6 questions on this sub-topic.
Edexcel · Biology · 7 Animal coordination, control and homeostasis
7.3Homeostasis and thermoregulation
reaction slows or stops. Cells also need a steady water concentration: too dilute and water enters by osmosis until the cell swells, too concentrated and water leaves until it shrinks. Either way the reactions inside stop
in Homeostasis
AQA · Biology · 4.5 Homeostasis and response
4.5.1Homeostasis
reaction slows or stops. Cells also need a steady water concentration: too dilute and water enters by osmosis until the cell swells, too concentrated and water leaves until it shrinks. Either way the reactions inside stop
in Homeostasis
AQA · Biology · 4.3 Infection and response
4.3.3Plant disease
Used in 3 questions on this sub-topic.