Fairly easy

A very high fever above 41 degrees Celsius is medically dangerous mainly because

Correct answer: B. vital enzymes begin to denature and lose function

  • A. it makes the blood too alkaline
  • B. vital enzymes begin to denature and lose function
  • C. it stops all diffusion in the body
  • D. it destroys red blood cells instantly

Explanation

Proteins start to unfold irreversibly a few degrees above body temperature, so sustained high fever disrupts the enzyme systems of the brain and other organs. This is the same denaturation that cooks an egg, happening inside the body.

Written and checked by , contributorLast updated
Report an error

The more specific you are, the faster it gets fixed. A source beats an opinion.

Prefer email? support@testustad.com

About Characteristics of Enzymes

Enzymes are globular biological catalysts that lower activation energy without being consumed, usually showing specificity for particular substrates. Questions cover active sites, enzyme substrate complexes, the lock and key and induced fit models, intracellular and extracellular action, and the effects of denaturation, while distinguishing enzymes from non biological catalysts.

Practise Enzymes

633 free Enzymes MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.

Discussion

Stuck on an option, or know a faster way to get there? Ask or explain it here.

No comments yet. Be the first to explain this one.

Exams that ask Biology questions like this

Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.

More Characteristics of Enzymes questions