Question

The only cells which do not contain mitochondria are the red blood cells, which produce energy ________ in the cytoplasm.

Answer 1

`\huge\boxed{\sf anaerobically }`

Step-by-step explanation:

There are two types of respiration by which energy can be produced.

• Aerobic respiration
• Anaerobic respiration

Since, red blood cells do not contain mitochondria, they carry out anaerobic respiration (respiration without oxygen) in the cytoplasm. Mitochondria is mainly the organelle which carries out aerobic respiration however, anaerobic respiration takes place in the cytoplasm.

`\rule[225]{225}{2}`