Question

The absorptive heterotrophy of fungi is aided by $a .$ dikaryon formation. $b$. spore formation. $c .$ the fact that they are all parasites. $d$. their large surface area-to-volume ratio. $e .$ their possession of chloroplasts.

Name: Problem 2, Chapter 30: Life: The Science of Biology
Uploaded: 2020-06-08T22:16:20-08:00
Duration: 2 min 16 s
Channel: Dr. Bridgette Drummond
Description: The absorptive heterotrophy of fungi is aided by a . dikaryon formation. b. spore formation. c . the fact that they are all parasites. d. their large surface area-to-volume ratio. e . their possession of chloroplasts.

   The absorptive heterotrophy of fungi is aided by
$a .$ dikaryon formation.
$b$. spore formation.
$c .$ the fact that they are all parasites.
$d$. their large surface area-to-volume ratio.
$e .$ their possession of chloroplasts.

Life: The Science of Biology

David E. Sadava,… 9th Edition

Chapter 30, Problem 2

Instant Answer

Solved by Expert Dr. Bridgette Drummond

06/08/2020

Step 1

Absorptive heterotrophy is a type of nutrition in which an organism obtains nutrients by secreting enzymes onto its food source and then absorbing the digested nutrients. Fungi are known for their absorptive heterotrophy. Now, let's analyze each option: a. Show more…

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The absorptive heterotrophy of fungi is aided by $a .$ dikaryon formation. $b$. spore formation. $c .$ the fact that they are all parasites. $d$. their large surface area-to-volume ratio. $e .$ their possession of chloroplasts.

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Key Concepts

Surface Area-to-Volume Ratio

This principle explains how an organism's shape can influence its metabolic and absorptive efficiency. In fungi, a high surface area-to-volume ratio, often achieved through the filamentous growth of hyphae, allows for more efficient secretion of enzymes and absorption of nutrients. This morphological adaptation is critical for optimizing their absorptive heterotrophy.

Absorptive Heterotrophy

This concept refers to the nutritional strategy where organisms, rather than ingesting solid food, secrete enzymes into their environment to break down complex substances. The resulting simpler compounds are then absorbed directly through their cell surfaces. This form of nutrition is central to many fungi, underscoring their role as decomposers and recyclers in ecosystems.

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