Active transport
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define: ACTIVE TRANSPORT
the movement of particles from lower concentration areas of the membrane to higher concentration areas against the concentration gradient. NOTE: active transport requires a membrane • it can be either particles or molecules
TRUE OR FALSE Active transport doesn’t require energy as it follows the concentration gradient
FALSE -active transport requires energy as it goes AGAINST the concentration gradient
a) what energy is required in active transport b) what type of protein is the pump?
a) ATP from respiration b) carrier protein (Pump)
Explain the process of active transport in 4 steps
• the molecule enters the carrier protein and binds to the specific binding site 2.energy is required to carry the molecule across the membrane , against the concentration gradient 3.the carrier protein opens on the other side of the cell membrane ,releasing the molecule on the other side 4.after, the carrier protein returns to its original position ,ready to transport another molecule
review paper 2 q10