PRINCIPLES OF LIFE
PRINCIPLES OF LIFE
3rd Edition
ISBN: 9781319017712
Author: HILLIS
Publisher: MAC HIGHER
Question
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Chapter 24, Problem 1.1Q
Summary Introduction

To understand: The source of carbon and nitrogen in a plant.

Introduction: Carbon and nitrogen are essential macronutrients required by the plant for several metabolic processes such as growth, maturation, reproduction, photosynthesis and many more functions.

Expert Solution & Answer
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Explanation of Solution

The source for carbon for plants is air. Carbon is available for the plants in the form of carbon dioxide which is essential for photosynthesis. Nitrogen is available in the atmosphere as gaseous form and as ammonia. It is also present is the soil as nitrate, nitrite, and urea. The uptake of nitrogen can be direct by using urea from soil or indirectly with the help of soil microorganisms that help the plants with nitrogen availability.

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