cell structure and biochemistry Flashcard 1

Front

What is actin?

Back

Actin is a structural protein that forms part of the cytoskeleton in eukaryotic cells, providing support and shape.

Front

What is a common function of carbohydrates in cells?

Back

Carbohydrates serve as a source of energy and are involved in energy storage.

Front

What is a common function of lipids in cells?

Back

Lipids are used for energy storage and form the structural components of cell membranes.

Front

What do transmembrane proteins do?

Back

Transmembrane proteins help the cell interact with its external environment by facilitating communication and transport.

Front

What is osmosis?

Back

Osmosis is the movement of water molecules across a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What distinguishes prokaryotic cells from eukaryotic cells?

Back

Prokaryotic cells lack a nucleus and membrane-bound organelles, while eukaryotic cells have both.

Front

What is the role of enzymes in cellular reactions?

Back

Enzymes act as catalysts to speed up chemical reactions within the cell.

Front

What is the function of the cell membrane?

Back

The cell membrane regulates what enters and exits the cell, maintaining homeostasis.

Front

What is the significance of energy storage in cells?

Back

Energy storage allows cells to have a reserve of energy that can be used when needed for metabolic processes.

Front

What is a structural protein?

Back

Structural proteins provide support and shape to cells and tissues, such as collagen in connective tissues.