Cells (Chapter 3) for Human Physiology Spring 2021

Front

What are the main components of a cell membrane?

Back

The main components of a cell membrane include phospholipids, proteins, cholesterol, and carbohydrates.

Front

What is the primary function of microvilli in cells?

Back

The primary function of microvilli is to increase surface area for absorption.

Front

What organelle is responsible for packaging proteins to be shipped out of the cell?

Back

The Golgi apparatus (or Golgi bodies) is responsible for packaging proteins to be shipped out of the cell.

Front

How does the volume of a cell change in relation to its surface area as it grows?

Back

As a cell becomes larger, its volume increases at a faster rate than its surface area.

Front

What is a ligand in the context of cell biology?

Back

A ligand is a molecule that binds to a receptor protein on a cell surface, triggering a response.

Front

What role do phospholipids play in the cell membrane?

Back

Phospholipids form the basic structure of the cell membrane, creating a bilayer that is semi-permeable.

Front

What is the function of cholesterol in the cell membrane?

Back

Cholesterol helps to stabilize the cell membrane's fluidity and integrity.

Front

What are receptor proteins and their function?

Back

Receptor proteins are proteins on the cell surface that bind to specific ligands, initiating a cellular response.

Front

What is the significance of surface area to volume ratio in cells?

Back

A higher surface area to volume ratio allows for more efficient exchange of materials between the cell and its environment.

Front

What is the function of ribosomes in a cell?

Back

Ribosomes are responsible for protein synthesis in the cell.