Lactic Acid | MCQs

Explanation

Lactic acid fermentation occurs in skeletal muscles during intense exercise when oxygen is scarce, converting pyruvate to lactate.

It provides rapid but temporary energy, causing muscle fatigue.

Explanation

The presence of lactic acid in milk is due to the fermentation of lactose caused mainly by lactic bacteria

Explanation

• Lactic acid is a natural preservative found in fermented foods like yogurt, cheese, and sauerkraut.
• It's produced during the fermentation process when bacteria like Lactobacillus convert sugars into acid.

Explanation

• Yogurt is made by adding a bacterial culture, typically Lactobacillus bulgaricus and Streptococcus thermophilus, to milk.
• These bacteria ferment the lactose (milk sugar) in the milk.
• It producing lactic acid and causing the milk to curdle and thicken, resulting in yogurt.

Explanation

Lactic acidosis is a condition where there is an accumulation of lactic acid in the body.

It does not typically occur in respiratory failure, which involves impaired oxygen exchange.

Explanation

In conditions like sepsis or shock, oxygen delivery to tissues is compromised,

It can result in both lactic acidosis (due to anaerobic metabolism) and severe anemia (due to blood loss or hemolysis).

Explanation

The accumulation of 'lactic acid' in the muscles results in extreme fatigue.

This buildup occurs during anaerobic respiration when oxygen levels are low.

It leading to muscle soreness and decreased performance.