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What is the difference between a macronutrient and a micronutrient?
- a. The size of the atoms
- b. The amount required by the plant
- c. The use by multicellular organisms (macroorganisms) versus microorganisms
- d. The source of the nutrient
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Introduction:
Every living organism like plants, humans and animals, all require essential nutrients which are chemical substances important for metabolic reactions, growth, development and reproduction. There are two types of nutrients: micronutrients and macronutrients.
Answer to Problem 1MCQ
Correct answer:
Macronutrients are those nutrients which are required in large amounts and micronutrients are those which required in small amounts. There are total 9 macronutrients like carbon, oxygen, hydrogen, nitrogen are some of them. There are 7 micronutrients. Chlorine, iron, boron and zinc are some of them. Therefore option (b) is the correct answer.
Explanation of Solution
Reason for the correct statement:
The amount of nutrients required by plants is the basis of differences between macro and micronutrients. The nutrients needed in large amounts by the plants are macronutrients and those required in smaller quantity are micronutrients.
Option (b) is given as “the amount required by the plant”.
As, “amount required by the plant is the basis of difference between a macronutrient and a micronutrient”, is the right answer.
Hence option (b) is correct.
Reasons for the incorrect statements:
Option (a), is given as “the size of the atoms”.
The abundance or quantity of nutrients by the organisms forms the basis of difference between micro and macronutrients and not the size of the atom. Hence, it is a wrong answer.
Option (c), is given as “the use by multicellular organisms (microorganisms) versus microorganisms”.
Micro and macronutrients are used by all the organisms whether they are multicellular or microorganisms and therefore it is not the basis for the difference between micro and macronutrients. Hence, it is a wrong answer.
Option (d), is given as “the source of the nutrient”.
A single source may contain either both micro and macronutrients or may contain only one type of nutrient. Thus, source of nutrient does not make the basis for the difference between micro and macronutrients. Hence, it is a wrong answer.
Hence options (a), (c), and (d), are incorrect.
Macronutrients are those nutrients which are required in large amounts and micronutrients are those which are required in small quantities by the plants.
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Chapter 23 Solutions
BIO 102 General Biology II Updated Edition (Tidewater Community College)
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