Question

which of these definitions have been paired with the correct type of cell?
blood cells are elongated cells that can contract.
neurons are cells that conduct electrical impulses.
epithelial cells are cells that carry oxygen through the body.
muscle cells are components of blood.

Explanation:

• Blood cells' main function is to carry substances like oxygen (red blood cells) or be part of the immune response (white blood cells), not to contract. Muscle cells are the ones that can contract.
• Neurons (nerve cells) have the property of being able to conduct electrical impulses which is crucial for communication in the nervous system.
• Epithelial cells form coverings and linings (e.g., skin, lining of organs), while red blood cells carry oxygen.
• Muscle cells are for movement (skeletal, smooth, cardiac muscle), and blood components are cells like red blood cells, white blood cells, and platelets.

Answer:

Neurons are cells that conduct electrical impulses.