Why are some tissues more vulnerable to inhibition of PDC activity, and how does this selective tissue vulnerability explain the cardinal clinical manifestations of the disease?

Some tissues are more vulnerable to PDC deficiency as they have high demand of oxygen and ATP like brain cells or neurons and muscles. Due it's deficiency both oxygen and ATP demand is not fulfilled and these cells show signs earlier then other cells

starchy vegetables are high in carbohydrates.

starchy vegetables contain more carbohydrates than non-starchy vegetables.

explanation:

there are two primary categories of carbohydrates, essentially differentiated on the basis of their carbohydrate content (which is in the form of starch - a complex carbohydrate):

those vegetables which contain little amounts of starch are termed as non-starchy vegetables, and some examples include: artichokes, broccoli and bean sprouts.

vegetables high in their starch content are distinguished as starchy vegetables, and some examples include: potatoes, chickpeas and corn.