Cell transport

Front

What type of transport occurs when particles move against the concentration gradient?

Back

Active Transport

Front

What is the primary macromolecule that makes up the cell membrane bilayer?

Back

Lipids

Front

What happens to a cell in a hypertonic environment?

Back

The cell shrinks due to lower water percentage outside than inside.

Front

What is the hydrophobic region of the cell membrane primarily composed of?

Back

Phospholipid tails.

Front

What is the term for the diffusion of water across a semi-permeable membrane?

Back

Osmosis.

Front

What is the difference between passive and active transport?

Back

Passive transport does not require energy, while active transport requires energy to move substances against their concentration gradient.

Front

What is facilitated diffusion?

Back

A process that allows substances to cross membranes with the assistance of special proteins.

Front

Define isotonic solution in relation to cell transport.

Back

An isotonic solution has equal concentrations of solute inside and outside the cell, resulting in no net movement of water.

Front

What role do transport proteins play in cell membranes?

Back

Transport proteins help move substances across the cell membrane, either passively or actively.

Front

What is endocytosis?

Back

A process by which cells engulf substances from the outside environment into the cell.