LabBench

Transpiration

Introduction

Key Concepts I

Closer Look: Movement of Water Up Xylem Vessels

Concept 1: Hydrogen Bonding

Concept 2: The Process of Transpiration

Test Yourself

Concept 3: How Do Guard Cells Function?

Concept 4: Guard Cell Function Animation

Concept 5: Transpiration and Photosynthesis

Concept 6: Factors That Affect the Rate of Transpiration

Design of the Experiment

Experiment 1: An Overview of the Experiment

Experiment 2: How to Calculate Leaf Surface Area

Analysis of Results I

Lab Quiz I

Key Concepts II

Analysis of Results II

Lab Quiz II

Analysis of Results I

Calculating Water Loss
Practice calculating water loss in the following exercise.

The chart below provides some sample data. Use this data to calculate the water loss in ml/m² over the 30-minute interval and complete the chart. Then check your answer.