Transport Mechanisms in Cells and Specialized Cell

Front

What is a hypertonic solution?

Back

A hypertonic solution is one that has a higher concentration of solutes compared to another solution, causing water to move out of a cell, leading to cell shrinkage.

Front

What type of specialized cell carries oxygen from the lungs to the body?

Back

Red blood cells are specialized cells that transport oxygen from the lungs to all parts of the body.

Front

What is passive transport?

Back

Passive transport is the movement of molecules across a cell membrane from an area of high concentration to an area of low concentration without the use of energy.

Front

What type of specialized cell transmits electrical signals in the body?

Back

Nerve cells (neurons) are specialized cells that carry electrical signals throughout the body to the brain.

Front

What is active transport?

Back

Active transport is the process of moving molecules against their concentration gradient, which requires energy (ATP).

Front

What is osmosis?

Back

Osmosis is the diffusion of water molecules through a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is an isotonic solution?

Back

An isotonic solution has an equal concentration of solutes compared to another solution, resulting in no net movement of water into or out of the cell.

Front

What role do red blood cells play in the body?

Back

Red blood cells are responsible for transporting oxygen from the lungs to tissues and returning carbon dioxide from the tissues back to the lungs.

Front

What is the difference between active transport and passive transport?

Back

Active transport requires energy to move substances against their concentration gradient, while passive transport does not require energy and moves substances down their concentration gradient.

Front

What is endocytosis?

Back

Endocytosis is the process by which cells engulf substances from their external environment, bringing them into the cell.