Biology STAAR (State of Texas Assessments of Academic Readiness) Practice Test

What is the primary function of the cerebrum in the brain?

1. Regulating blood sugar levels

2. Controlling balance and coordination

3. Managing conscious activities and intelligence

4. Fighting diseases

The correct answer is: Managing conscious activities and intelligence

The primary function of the cerebrum is to manage conscious activities and intelligence. This part of the brain is responsible for higher brain functions such as thought, action, reasoning, and critical thinking. It is divided into different lobes, each associated with various functions, including sensory perception, decision-making, and voluntary movements. The cerebrum plays a crucial role in processing sensory information, helping in problem-solving, and controlling complex behaviors and emotional responses. In contrast, functions like regulating blood sugar levels are managed by the pancreas and other endocrine glands, while balance and coordination are primarily overseen by the cerebellum. The immune system's role in fighting diseases is not a function of the cerebrum but involves other systems in the body, such as the lymphatic system and the production of immune cells. Therefore, the correct choice highlights the cerebrum's significance in the realm of conscious thought and intellect.