Active Transport Flashcards
What is active transport?
It is when substances need to be absorbed against a concentration gradient - from a lower to higher concentration.
How do root hair cells take in minerals?
Using active transport - it allows the plant to absorb minerals from a very dilute solution against a concentration gradient.
What does active transport need for it to work?
It needs energy from respiration.
When is active transport used in the gut?
When there is a lower concentration of nutrients in the gut but a higher concentration of nutrients in the blood.
How is active transport used in the gut?
It allows nutrients to be taken into the blood even if the concentration gradient is the wrong way - TMT glucose can be taken into the bloodstream when its concentration in the blood is already higher in the gut.
