Nutrients that organisms need in only minor or trace amounts are called:

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Study for the Grade 9 Environmental Chemistry Test. Use a blend of multiple-choice questions and detailed explanations. Master key concepts and prepare effectively!

Multiple Choice

Nutrients that organisms need in only minor or trace amounts are called:

Explanation:
Nutrients needed in tiny amounts are called micronutrients, or trace elements. They’re essential even though they’re required in small quantities because they often act as cofactors that enable enzymes to work. Without sufficient micronutrients, important metabolic processes can’t run smoothly even if the larger, macronutrient amounts are plenty. Examples include iron for oxygen transport, zinc and copper for enzyme activity, and iodine for thyroid hormones. Although all these elements are necessary for health, the clue about needing only trace amounts points to the term micronutrients.

Nutrients needed in tiny amounts are called micronutrients, or trace elements. They’re essential even though they’re required in small quantities because they often act as cofactors that enable enzymes to work. Without sufficient micronutrients, important metabolic processes can’t run smoothly even if the larger, macronutrient amounts are plenty. Examples include iron for oxygen transport, zinc and copper for enzyme activity, and iodine for thyroid hormones. Although all these elements are necessary for health, the clue about needing only trace amounts points to the term micronutrients.

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