1.5 Active transport Flashcards
(8 cards)
Whats active transport
the movement of molecules across a membrane
from a region of lower concentration to a region of higher concentration. This requires energy from respiration.
Is active transport a passive or active process?
Passive
Active
justify your answer
Active
because it requires energy.
True or false? Active transport can only take place across a membrane.
True
False
true
Which process provides the energy required for active transport?
Respiration
Where do plants absorb mineral ions from?
Soil
Why can’t plants absorb mineral ions by diffusion?
Their concentration is higher in the cell than in the soil
Diffusion is the movement from higher to lower but the soil is less concentrated therefore active transport needs to occur
Which cells in the plant are adapted to absorb mineral ions?
Palisade mesophyll cells
Root hair cells
Xylem cells
Root hair cells
Other than mineral ions, which other molecule do root hair cells absorb?
Carbon dioxide
Oxygen
Water
water
