Multiple Choice
The study of which structure was instrumental in the formulation of the modern cell theory?
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10. Cell Signaling
Introduction to Cell Signaling
Multiple Choice
Which of the following best describes the relationship between tau proteins and brain damage?
A
Increased levels of tau proteins enhance synaptic plasticity, reducing the risk of brain damage.
B
Tau proteins function as enzymes that repair damaged DNA in brain cells.
C
Tau proteins are responsible for transmitting electrical signals between neurons, preventing brain damage.
D
Abnormal accumulation of tau proteins leads to the formation of neurofibrillary tangles, which are associated with neuronal damage in the brain.
Verified step by step guidance1
Step 1: Begin by understanding what tau proteins are. Tau proteins are microtubule-associated proteins that help stabilize microtubules in neurons, which are essential for maintaining the structure and function of the cell.
Step 2: Learn about the abnormal accumulation of tau proteins. When tau proteins become hyperphosphorylated, they lose their ability to stabilize microtubules and instead aggregate into insoluble clumps called neurofibrillary tangles.
Step 3: Explore the consequences of neurofibrillary tangles. These tangles disrupt the normal functioning of neurons, leading to impaired communication between brain cells and eventually neuronal death.
Step 4: Connect the formation of neurofibrillary tangles to brain damage. The accumulation of these tangles is a hallmark of neurodegenerative diseases such as Alzheimer's disease, where they contribute to cognitive decline and brain damage.
Step 5: Conclude that the correct description of the relationship is: Abnormal accumulation of tau proteins leads to the formation of neurofibrillary tangles, which are associated with neuronal damage in the brain.
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