Igcse Model Questions Vol1 2024 Biology Question 4

Practice objective / multiple choice question 4 from the 2024 Igcse Model Questions Vol1 Biology examination.

Igcse Model Questions Vol1 2024 Biology Objective / Multiple Choice Hard Difficulty
Question 4 IGCSE_MODEL_QUESTIONS_VOL1 • 2024 • BIOLOGY • objective

Two desert plant species differ in leaf morphology. Species A has a leaf area of \(200\ \text{cm}^2\) and a stomatal density of \(300\) stomata per \(\text{mm}^2\). Each stomata loses \(0.05\ \mu\text{L}\) of water per hour. Species B has a leaf area of \(150\ \text{cm}^2\) and a stomatal density of \(200\) stomata per \(\text{mm}^2\). Each stomata loses \(0.07\ \mu\text{L}\) of water per hour. Calculate the total water loss per hour for each species (in millilitres) and indicate which species loses less water.

Answer Options

A. Species A: 3 mL h⁻¹; Species B: 2.1 mL h⁻¹; Species B loses less water
B. Species A: 200 mL h⁻¹; Species B: 315 mL h⁻¹; Species A loses less water
C. Species A: 300000 mL h⁻¹; Species B: 210000 mL h⁻¹; Species B loses less water
Correct Answer D. Species A: 300 mL h⁻¹; Species B: 210 mL h⁻¹; Species B loses less water
Correct Answer
D
Correct Option:
Species A: 300 mL h⁻¹; Species B: 210 mL h⁻¹; Species B loses less water

About This Question

This is Igcse Model Questions Vol1 2024 Biology Question 4. It is one of the objective questions from the 2024 Igcse Model Questions Vol1 Biology examination.

Difficulty level: Hard .

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