Active Transport Flashcards
What are root hairs specialised for absorbing?
Water and minerals.
What do the cells on the surface of the plants roots grow into?
They grow into long hairs which stick out into the soil.
What does this give the plant?
It gives the plant a big surface area for absorbing water and mineral ions from the soil.
Where does most of the water and mineral ions that get into a plant absorbed by?
The root hair cells.
How do root hairs take in the minerals?
By using active transport.
Where is the concentration of mineral usually higher, in the root hair cell or the soil?
The concentration of minerals is normally higher in the root hair cell than in the soil.
What does active transport allow plants to do?
Absorb minerals from a dilute solution, against the concentration gradient.
What are the minerals essential for in a plant?
It’s growth.
What does active transport need?
It needs energy from respiration.
Name an example of where active transport happens in humans?
Taking in glucose from the gut.
Describe why active transport is needed to take nutrients from the gut into the blood.
It is needed when there is a low concentration of nutrients in the gut, but a high concentration of nutrients in the blood.
