Cell Transport Oct 22. Oct 23 2024 DO NOW

Front

What is cell transport?

Back

Cell transport refers to the movement of substances across the cell membrane, which can occur through various mechanisms such as diffusion, osmosis, and active transport.

Front

Define diffusion.

Back

Diffusion is the passive movement of particles from an area of high concentration to an area of low concentration until equilibrium is reached.

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 active transport?

Back

Active transport is the movement of substances against their concentration gradient, requiring energy (usually in the form of ATP) to move molecules from low to high concentration.

Front

What role do mitochondria play in muscle cells?

Back

Mitochondria are the powerhouse of the cell, providing energy through the process of cellular respiration, which is crucial for muscle cells that require a lot of energy for contraction.

Front

What is the function of the cell membrane?

Back

The cell membrane regulates the movement of materials in and out of the cell, providing protection and maintaining homeostasis.

Front

How do plant cells differ from animal cells in terms of vacuoles?

Back

Plant cells typically have a large central vacuole that stores water and nutrients, while animal cells have smaller vacuoles.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that uses protein channels to help move substances across the cell membrane without the use of energy.

Front

Explain the concept of homeostasis in relation to cell transport.

Back

Homeostasis is the process by which cells maintain a stable internal environment, which is achieved through the regulation of substances entering and leaving the cell.

Front

What is the significance of the selectively permeable nature of the cell membrane?

Back

The selectively permeable nature of the cell membrane allows the cell to control which substances can enter or exit, thus maintaining the necessary conditions for cellular function.