Transport and Previous Review

Front

What is the role of enzymes in chemical reactions?

Back

Enzymes speed up chemical reactions by lowering the activation energy required for the reaction to occur.

Front

What happens to enzymes at high temperatures?

Back

Enzymes can denature, meaning they change shape and lose their functionality when exposed to high temperatures.

Front

What is cytoplasm?

Back

Cytoplasm is the jelly-like substance within a cell where all organelles float and where many cellular processes occur.

Front

What is dehydration synthesis?

Back

Dehydration synthesis is the process of releasing water when forming ATP, which is essential for energy transfer in cells.

Front

What is active transport?

Back

Active transport is the movement of particles from an area of lower concentration to an area of higher concentration, requiring energy.

Front

What is the fluid mosaic model?

Back

The fluid mosaic model describes the cell membrane as flexible and composed of various parts, including lipids and proteins.

Front

What is passive transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy, typically from high to low concentration.

Front

What is the function of the cell membrane?

Back

The cell membrane protects the cell, provides structure, and regulates what enters and exits the cell.

Front

What is the difference between active and passive transport?

Back

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

Front

What is the significance of pH levels for enzymes?

Back

Extreme pH levels can denature enzymes, affecting their shape and functionality.