Final answer:
Alzheimer's Disease is a neurodegenerative disease characterized by the abnormal formation of beta-amyloid plaques and tau protein tangles in the brain, leading to brain degeneration, memory loss, and dementia.
Step-by-step explanation:
Alzheimer's Disease
Alzheimer's disease is the disease in which there is an abnormal formation of beta-amyloid plaques and tau protein tangles, resulting in brain degeneration. Beta-amyloid plaques are dense conglomerations of a protein that is not functioning correctly, while tau protein tangles are misshapen tau proteins accumulating in neurofibrillary tangles in brain neurons. These abnormalities in protein formation lead to the death and degeneration of neurons, causing memory loss and dementia.