Suppose Working Outside on a Hot Day Someone Generate 450

question 52

Multiple Choice

Suppose working outside on a hot day someone generate 450 J of heat each second.If this energy is compensated for by the evaporation of sweat,how much water would be lost in an hour? The latent heat of fusion for water is 334 kJ/kg and for vaporization is 2,200 kJ/kg.

• A) 4.85 liter
• B) 0.74 liter
• C) 0.50 liter
• D) 1.5 liter

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Definitions:

ATP

Involved in metabolic processes, ATP (adenosine triphosphate) is the key energy transporter in cells.

Ingestion

The method by which food, liquids, or other substances are introduced into the body through swallowing or absorption.

Active Transport

A cellular process that requires energy to move substances across cell membranes against a concentration gradient.

Concentration Gradient

The gradual difference in the concentration of solutes in a solution between two regions. In biology, it often refers to differences across a membrane.