3 phopholipid Bilayer Biology Flashcard BWHS

Front

What is the main role of ribosomes?

Back

Protein synthesis.

Front

What are ribosomes composed of?

Back

Ribosomal RNA (rRNA) and proteins.

Front

What is a micelle?

Back

A phospholipid structure formed in aqueous environments, where hydrophilic heads face outward and hydrophobic tails face inward.

Front

What happens to the cell membrane when poked with a fine needle?

Back

The cell membrane will simply part around the needle.

Front

How many subunits does a ribosome have?

Back

2.

Front

What is the structure of a phospholipid?

Back

A phospholipid consists of a hydrophilic (water-attracting) head and two hydrophobic (water-repelling) tails.

Front

What is the function of the cell membrane?

Back

To protect the cell and regulate what enters and exits.

Front

What is the difference between a liposome and a micelle?

Back

A liposome is a spherical vesicle with a phospholipid bilayer, while a micelle is a smaller structure with a single layer of phospholipids.

Front

What role do proteins play in the cell membrane?

Back

Proteins assist in transport, communication, and structural support.

Front

What is the fluid mosaic model?

Back

A model that describes the structure of the cell membrane as a mosaic of various components, including phospholipids, proteins, and carbohydrates, that move fluidly.