T3 NC EOC Review: Homeostasis & Cell Transport

Front

What is homeostasis?

Back

Homeostasis is the process by which living organisms regulate their internal environment to maintain stable, constant conditions despite changes in the external environment.

Front

What does hypertonic mean in relation to cell transport?

Back

A hypertonic solution has a higher concentration of solutes compared to the inside of the cell, causing water to exit the cell and leading to cell shrinkage.

Front

What is a hypotonic solution?

Back

A hypotonic solution has a lower concentration of solutes compared to the inside of the cell, causing water to enter the cell and potentially leading to cell swelling or bursting.

Front

Define isotonic solution.

Back

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

Front

What is the role of ATP in active transport?

Back

ATP provides the energy required for active transport, allowing substances to move against their concentration gradient.

Front

What pH range is considered acidic?

Back

A pH range of 0-6 is considered acidic.

Front

Why is maintaining homeostasis crucial for cells?

Back

Maintaining homeostasis is crucial for the survival of the cell and the organism, as it ensures optimal conditions for cellular processes.

Front

What is passive transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy, typically along the concentration gradient.

Front

What is the difference between diffusion and osmosis?

Back

Diffusion is the movement of particles from an area of higher concentration to an area of lower concentration, while osmosis specifically refers to the movement of water across a semipermeable membrane.

Front

What is the function of cell membranes in transport?

Back

Cell membranes regulate the movement of substances in and out of the cell, maintaining homeostasis and allowing for communication with the external environment.