Active transport

Which way do particles move during active transport?

• From areas of low concentration to areas of high concentration

• • From one area of high concentration to another area of high concentration

• From one area of low concentration to another area of low concentration

• From areas of high concentration to areas of low concentration

describes what happens when a cell uses energy to transport something.

When would a cell need to use active transport instead of passive transport?

• To diffuse oxygen across the cell membrane

• To take in nutrients that have a lower concentration outside the cell

• To transport ions with a high internal cell concentration out of the cell using channels

• to move water to external environment

What is the primary function of active transport in a cell?

• To maintain a balance of water inside and outside the cell

• To transport waste out of the cell

• To move nutrients into the cell against the concentration gradient

• To regulate the temperature inside the cell

How does active transport differ from passive transport?

• Active transport requires energy, while passive transport does not

• Active transport only occurs in plant cells, while passive transport occurs in animal cells

• Active transport moves substances with the concentration gradient, while passive transport moves substances against the concentration gradient

• Active transport is faster than passive transport

What organelle is primarily responsible for active transport in a cell?

• Nucleus

• Endoplasmic reticulum

• Cell membrane

• Chloroplast