Waec Model Questions Vol1 2020 Biology Question 1

Practice objective / multiple choice question 1 from the 2020 Waec Model Questions Vol1 Biology examination.

Waec Model Questions Vol1 2020 Biology Objective / Multiple Choice Medium Difficulty

Question 1 WAEC_MODEL_QUESTIONS_VOL1 • 2020 • BIOLOGY • objective

In a plant, the water potential (Ψ) values are: soil Ψ = -0.15 MPa, root xylem Ψ = -0.30 MPa, leaf cell Ψ = -1.20 MPa, and atmospheric Ψ = -1.80 MPa. The hydraulic conductance of the root segment is 0.8 mmol m⁻² s⁻¹ MPa⁻¹ and that of the leaf stomatal pathway is 0.5 mmol m⁻² s⁻¹ MPa⁻¹. Assuming the root and leaf pathways are in series, calculate the net water flux (J, in mmol m⁻² s⁻¹) from soil to leaf.

Answer Options

A. 0.24 mmol m⁻² s⁻¹

B. 0.28 mmol m⁻² s⁻¹

C. 0.40 mmol m⁻² s⁻¹

Correct Answer D. 0.32 mmol m⁻² s⁻¹

Correct Answer

Correct Option:

0.32 mmol m⁻² s⁻¹

About This Question

This is Waec Model Questions Vol1 2020 Biology Question 1. It is one of the objective questions from the 2020 Waec Model Questions Vol1 Biology examination.

Difficulty level: Medium .

View More Waec Model Questions Vol1 2020 Biology Questions More Waec Model Questions Vol1 Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows

Chat with Support