Question

What are the categories of proteins that assist in the movement of molecules and ions across membranes?

A) 1. Enzymes, 2. Structural Proteins, 3. Signal Transduction Proteins
B) 1. Channel Proteins, 2. Carrier Proteins, 3. Pump Proteins
C) 1. Receptor Proteins, 2. Transport Proteins, 3. Extracellular Matrix Proteins
D) 1. Motor Proteins, 2. Cytoskeletal Proteins, 3. Cell Adhesion Proteins

Answer 1

The categories of proteins that assist in the movement of molecules and ions across membranes are Channel Proteins, Carrier Proteins, and Pump Proteins.

Step-by-step explanation:

The categories of proteins that assist in the movement of molecules and ions across membranes are:

1. Channel Proteins: These are transmembrane proteins that form hydrophilic channels in the cell membrane, allowing specific molecules and ions to pass through.
2. Carrier Proteins: These proteins bind to specific molecules or ions and undergo a change in shape, transporting them across the membrane.
3. Pump Proteins: These proteins require ATP to actively transport molecules and ions across the membrane.