Question

A mineral deficiency is likely to affect older leaves more than younger leaves if a. the mineral is a micronutrient. b. the mineral is very mobile within the plant. c. the mineral is required for chlorophyll synthesis. d. the mineral is a macronutrient.

Name: Problem 6, Chapter 37: Campbell Biology
Uploaded: 2021-01-11T21:11:05-08:00
Duration: 1 min 50 s
Channel: Caroline Jones
Description: A mineral deficiency is likely to affect older leaves more than younger leaves if a. the mineral is a micronutrient. b. the mineral is very mobile within the plant. c. the mineral is required for chlorophyll synthesis. d. the mineral is a macronutrient.

   A mineral deficiency is likely to affect older leaves more than younger leaves if
a. the mineral is a micronutrient.
b. the mineral is very mobile within the plant.
c. the mineral is required for chlorophyll synthesis.
d. the mineral is a macronutrient.

Campbell Biology

Jane B. Reece, Lisa… 10th Edition

Chapter 37, Problem 6

Instant Answer

Solved by Expert Caroline Jones

01/11/2021

Step 1

New leaves are usually formed towards the center of the plant, while older leaves are pushed outwards. Show more…

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A mineral deficiency is likely to affect older leaves more than younger leaves if a. the mineral is a micronutrient. b. the mineral is very mobile within the plant. c. the mineral is required for chlorophyll synthesis. d. the mineral is a macronutrient.

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Key Concepts

Deficiency Symptom Expression

Deficiency symptom expression involves understanding how and where symptoms of nutrient shortage occur in plants. For mobile nutrients, deficiencies tend to manifest in older leaves because the plant prioritizes the allocation of these nutrients to younger, actively growing tissues, thereby protecting them from temporary shortages.

Nutrient Mobility in Plants

This concept refers to the ability of a nutrient to move from older tissues to younger tissues within the plant. When nutrients are mobile, the plant reallocates them to support new growth, which means deficiency symptoms appear first in older leaves, as these nutrients are remobilized from them.

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