Biology CB5 Flashcard Cytoplasm & Cytoskeleton

Front

What forms the basis of the 'skeleton' inside the cell?

Back

Microtubules

Front

Is cytosol a watery, gel-like material that makes up much of the cytoplasm?

Back

True

Front

What organizes the inside structure of the cell by holding organelles and providing strength, and is made of the protein keratin?

Back

Intermediate filaments

Front

Is the eukaryotic cytoskeleton made up of a network of long, thin lipid fibers?

Back

False

Front

What are made of two thin actin chains twisted around one another and are found in almost every cell?

Back

Microfilaments

Front

Define cytoplasm.

Back

The jelly-like substance within a cell that contains organelles and is surrounded by the cell membrane.

Front

What is the primary function of microtubules?

Back

To provide structural support and shape to the cell, and to facilitate intracellular transport.

Front

What role do intermediate filaments play in the cell?

Back

They provide mechanical support and help maintain the shape of the cell.

Front

What are microfilaments primarily composed of?

Back

Actin, a protein that helps in cell movement and shape changes.

Front

What is the difference between cytoplasm and cytosol?

Back

Cytoplasm includes all the contents within the cell membrane except the nucleus, while cytosol is the liquid portion of the cytoplasm.