Question

1. Gases are transported by red blood cells because the cells contain

carbon dioxide
hemoglobin
plasma
platelets

Answer 1

Gases are transported by red blood cells because the cells contain hemoglobin.

Hemoglobin is a protein that is found in red blood cells and is responsible for carrying oxygen from the lungs to the body's tissues and carrying carbon dioxide from the tissues back to the lungs to be exhaled. Hemoglobin has a high affinity for both oxygen and carbon dioxide, which allows it to bind and release these gases efficiently as it travels through the body.

Answer 2

Hemoglobin

Step-by-step explanation:

These cells contain a metalloprotein called hemoglobin, which is composed of four subunits with a ring-like structure.