Neco Model Questions Vol1 2022 Biology Question 2

Practice objective / multiple choice question 2 from the 2022 Neco Model Questions Vol1 Biology examination.

Neco Model Questions Vol1 2022 Biology Objective / Multiple Choice Medium Difficulty
Question 2 NECO_MODEL_QUESTIONS_VOL1 • 2022 • BIOLOGY • objective

Refer to the labelled diagram of the human respiratory system. The alveolar wall thickness is \(0.5\ \mu\text{m}\), the capillary wall thickness is \(0.3\ \mu\text{m}\) and the interstitial space between them is \(0.2\ \mu\text{m}\). The effective diffusion area for oxygen is \(70\ \text{m}^{2}\). Using Fick's law, compare the rate of oxygen diffusion when the partial pressure difference between alveolar air and capillary blood is \(100\ \text{mmHg}\) versus when it is \(80\ \text{mmHg}\). Express the ratio of the two rates.

Answer Options

A. 0.80
B. 1.00
Correct Answer C. 1.25
D. 1.50
Correct Answer
C
Correct Option:
1.25

About This Question

This is Neco Model Questions Vol1 2022 Biology Question 2. It is one of the objective questions from the 2022 Neco Model Questions Vol1 Biology examination.

Difficulty level: Medium .

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