A Level Biology Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Master the A Level Biology Exam. Use flashcards and multiple choice questions with hints and explanations to ace your test. Start your journey to excellence!

Start Multiple Choice Practice Test
Start Flash Cards

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

How is the ventilation rate calculated?

  1. Breathing rate divided by tidal volume

  2. Tidal volume divided by breathing rate

  3. Tidal volume multiplied by breathing rate

  4. Breathing rate multiplied by tide frequency

The correct answer is: Tidal volume multiplied by breathing rate

The ventilation rate is calculated by multiplying the tidal volume by the breathing rate. Tidal volume refers to the volume of air inhaled or exhaled during each breath, while the breathing rate is the number of breaths taken per minute. By multiplying these two values, you determine the total volume of air that is ventilated in a minute, which is essential for understanding respiratory efficiency and gas exchange in organisms. This calculation is significant in various contexts, such as assessing lung function, determining athletic performance, and understanding respiratory health. Other incorrect choices either misinterpret the relationship between tidal volume and breathing rate or propose a calculation that doesn’t accurately represent the total ventilated air.

More Questions Like This