Transport in Cells (AQA GCSE Biology Combined Science): Flashcards
📚Flashcards
Practise the cards
10 cards from this deck
ShowHide
Practise the cards
10 cards from this deck
What is diffusion?
What is diffusion?
Movement of particles from higher to lower concentration until equilibrium
Type of transport: diffusion
Type of transport: diffusion
Passive (no energy required)
What is osmosis?
What is osmosis?
Diffusion of water across a partially permeable membrane from higher to lower water concentration
Type of transport: osmosis
Type of transport: osmosis
Passive (no energy required)
What is active transport?
What is active transport?
Movement against concentration gradient (low to high) using energy
Energy source for active transport
Energy source for active transport
Energy from respiration
Diffusion in lungs (gas exchange)
Diffusion in lungs (gas exchange)
O2 from alveoli to blood; CO2 from blood to alveoli
Active transport in plant roots
Active transport in plant roots
Absorbs mineral ions (potassium, nitrate) from soil
Active transport in small intestine
Active transport in small intestine
Absorbs glucose and amino acids into blood
Osmosis role in kidneys
Osmosis role in kidneys
Reabsorption of water to regulate water balance