1.3.3 Active Transport

• What is active transport?

  Movement against concentration gradient
• Active transport uses energy in the form of ATP
• What is the primary difference between active and passive transport in terms of the concentration gradient?

  Against vs. down
• Match the type of transport with its example:

  Active Transport ↔️ Sodium-Potassium pump

  Passive Transport ↔️ Osmosis
• Steps involved in the movement of substances against their concentration gradient during active transport:

  1️⃣ ATP is hydrolyzed by carrier proteins

  2️⃣ Energy is released

  3️⃣ Carrier protein binds to the substance

  4️⃣ Substance is transported across the membrane
• ATP is hydrolyzed by carrier proteins, releasing energy
• What are transport proteins responsible for in cells?

  Moving substances across membranes
• Passive transport requires energy from ATP.

  False
• Active transport does not require any energy input.

  False
• Active transport moves substances from an area of low concentration to an area of high concentration
• What does ATP stand for in biology?

  Adenosine triphosphate
• Passive transport utilizes ATP to move substances across the membrane.

  False
• Match the type of transport protein with its function:

  Carrier Proteins ↔️ Move substances against concentration gradient using ATP

  Channel Proteins ↔️ Facilitate passive diffusion
• What is the key distinction between active and passive transport in terms of energy usage?

  Requires ATP vs. no ATP
• Carrier proteins are essential for active transport, while channel proteins facilitate passive transport.
• What is the source of energy used in active transport?

  ATP
• Active transport requires energy in the form of ATP.
• Match the type of transport with an example:

  Active Transport ↔️ Sodium-Potassium pump

  Passive Transport ↔️ Osmosis
• Passive transport requires energy to move substances across the membrane.

  False
• Match the transport protein with its role:

  Carrier Proteins ↔️ ATP-dependent transport

  Channel Proteins ↔️ Passive diffusion
• Passive transport requires no input of energy.
• Which ion is transported into the cell by the sodium-potassium pump?

  Potassium
• The proton pump maintains pH levels by pumping hydrogen ions out of the cell.


  True
• Active transport requires energy in the form of ATP.
• Passive transport moves substances down their concentration gradient without the use of energy
• ATP is hydrolyzed by carrier proteins during active transport to release energy.


  True
• Why does passive transport not require energy?

  Moves substances down gradient
• What processes are involved in passive transport?

  Diffusion and osmosis
• What is the significance of active transport for cell function?

  Maintains necessary concentrations of substances
• Passive transport moves substances down their concentration gradient without energy.


  True
• In which direction does active transport move substances relative to their concentration gradient?

  Against
• ATP is hydrolyzed by carrier proteins, releasing energy for transport.
• What type of gradient does active transport move substances against?

  Concentration
• What is the energy source for active transport?

  ATP
• Active transport moves substances down their concentration gradient.

  False
• The calcium pump uses ATP to regulate calcium levels in the cytoplasm.
• Which carrier protein transports glucose into cells using active transport?

  GLUT4
• What is an example of passive transport across the cell membrane?

  Diffusion
• Steps to differentiate between active and passive transport

  1️⃣ Check if energy is required

  2️⃣ Identify the direction of movement relative to the concentration gradient

  3️⃣ Determine the type of transport process (e.g., diffusion, osmosis)

  4️⃣ Compare the mechanisms involved
• Match the transport protein with its role:

  Carrier Proteins ↔️ Actively transport substances against gradient using ATP

  Channel Proteins ↔️ Allow passive diffusion of substances down gradient