What is the primary early symptom of Alzheimer's disease?

• Difficulty with motor skills

• Loss of sensory functions

• Memory troubles

• Emotional instability

As Alzheimer's disease progresses, which of the following is typically spared?

• Basic motor and sensory functions

• Emotional functions

• Cognitive functions

• Behavioral functions

What is the medical term for the decrease in brain tissue size observed in Alzheimer's patients?

• Hypertrophy

• Atrophy

• Dystrophy

• Hyperplasia

Which part of the brain is primarily affected by atrophy in the early stages of Alzheimer's?

• Frontal lobes

• Occipital lobes

• Parietal lobes

• Temporal lobes

What are amyloid plaques primarily composed of?

• Beta-amyloid protein

• Glucose

• Acetylcholine

• Tau protein

Where are neurofibrillary tangles located in Alzheimer's patients?

• In the spinal cord

• In the bloodstream

• Inside neurons

• Outside neurons

Which neurotransmitter is associated with cognitive function and is affected in Alzheimer's?

• Serotonin

• GABA

• Dopamine

• Acetylcholine

What is a very early finding in Alzheimer's related to energy use in brain cells?

• Increased glucose metabolism

• Normal mitochondrial function

• Abnormalities in energy pathways

• Decreased oxidative stress

Which gene is strongly associated with the risk of developing Alzheimer's disease?

• BRCA1

• TP53

• CFTR

• ApoE4

Which lifestyle factor is associated with a decreased risk of Alzheimer's?

• Sedentary lifestyle

• High blood pressure

• Low education levels

• Cognitively challenging jobs