Biology Reporting Category 1

Front

What is a phospholipid?

Back

A phospholipid is a type of lipid molecule that is a major component of cell membranes, consisting of two fatty acids, a glycerol unit, and a phosphate group.

Front

What is the function of the cell membrane?

Back

The cell membrane protects the cell, provides structure, and regulates the movement of substances in and out of the cell.

Front

What is the first step of virus infection?

Back

The first step of virus infection is attachment, where the virus binds to the host cell.

Front

What is a lipid bilayer?

Back

A lipid bilayer is a double layer of phospholipids that makes up the cell membrane, with hydrophilic heads facing outward and hydrophobic tails facing inward.

Front

What are hydrophilic heads?

Back

Hydrophilic heads are the water-attracting part of phospholipids that face the aqueous environment outside and inside the cell.

Front

What are hydrophobic tails?

Back

Hydrophobic tails are the water-repelling part of phospholipids that face each other in the interior of the lipid bilayer.

Front

What is a lytic virus?

Back

A lytic virus is a type of virus that causes the host cell to lyse (break open) immediately after infection, releasing new viral particles.

Front

What is a lysogenic virus?

Back

A lysogenic virus integrates its genetic material into the host cell's DNA and can remain dormant before eventually entering the lytic cycle.

Front

What is the role of proteins in the cell membrane?

Back

Proteins in the cell membrane assist in transport, act as receptors, and provide structural support.

Front

What is the significance of the cell membrane's fluid mosaic model?

Back

The fluid mosaic model describes the cell membrane as a dynamic structure with various proteins floating in or on the fluid lipid bilayer, allowing for flexibility and movement.