The body's first line of defence against shifts in pH is its acid-base buffer systems.
What is acid-base buffer system?
- The proper balance between the acids and bases in the body's extracellular fluid is crucial for the normal physiology of the body and for cellular metabolism.
- The first lines of defence are immediate, consisting of the various chemical buffers which minimize pH changes that would otherwise occur in their absence.
- The pH of the intracellular fluid and the extracellular fluid need to be maintained at a constant level.
- Proteins are denatured i.e. their 3D structure is disrupted, causing enzymes and ion channels to malfunction.
- An acid–base imbalance is known as acidaemia when the pH is acidic and alkalaemia when the pH is alkaline.
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Answer:
D. The stake in the saint's heart represents the Reformation.
Explanation:
Pieter Bruegel's <em>the Elder's Battle Between Carnival and Lent </em>showed different symbols as used in the painting EXCEPT The stake in the saint's heart represents the Reformation.
His paintings is rich in allegories and symbols that depict the triumph of Lent, also showing the Carnival with the figure bidding farewell with his left hand with his hands lifted to the sky.
Also in the painting, there is another figure of a large man riding on a barrel with something attached to his front. He wears a meat pie as a headdress, wielding a spit along with the head of a pig bracing for a fight.
In this example of a woodblock print, the registration points, or chosen locations that ensure the colors align correctly, were likely placed in the corners by the artist.
