What is the movement of water molecules across a selectively permeable membrane called?

Which type of transport uses protein channels to move molecules across the cell membrane from an area of high concentration, to low concentration?

Which type of transport moves substances from low to high concentrations (against the concentration gradient)?

Which type of transport is responsible for the movement of sodium, calcium or potassium across the cell membrane?

Which type of transport requires the input of ATP?

Which type of transport moves particles from high to low concentrations (with the concentration gradient)?

Imagine Lily and Ethan are conducting a fun science experiment. Lily carefully adds two drops of vibrant green food coloring to a beaker brimming with crystal-clear water. They eagerly watch the clock tick by, and after 5 exciting minutes, they observe with amazement as the water transforms into a uniform shade of pale green. With a high-five, they conclude that the process of __________ has magically caused the dye to spread evenly throughout the water.

1. An amoeba is a single-celled organism. Amoebas extend their cell membrane around a food particle or prey organism. Then, they bring the food into the cell, as is shown in the illustration.

Which term best describes the cell process amoebas use to get food?

What is the main difference between active transport and passive transport?

Imagine Olivia, Aria, and Mason are in a club with a special door that only lets certain members in. This door is a lot like a cell membrane, which only allows some substances to move through while blocking others. Which word describes this quality?

The cell is showing an example of which type of transport?

Which of the following are examples of passive transport? (select all that apply)

Samuel, Emma, and Benjamin are having a debate about cell transport. They are looking at a cell under a microscope. Samuel thinks the cell is showing an example of which type of transport? Can you help them?

The cell is showing an example of which type of transport?

The cell is showing an example of which type of transport?

The cell is showing an example of which type of transport?

What process do plant cells use to take in carbon dioxide from the atmosphere for photosynthesis?

Priya, David, and Zoe are having a debate about cell biology. They are trying to figure out during which process do vesicles release their contents outside the cell. Can you help them?

Imagine Jackson, Hannah, and Noah are in a dance-off, moving from a crowded dance floor to an open space. What is this similar to in biology, where molecules or ions shimmy from a region of higher concentration to a region of lower concentration with the help of transport proteins?