Within the traditional plant kingdom classification, which group consists of non green, heterotrophic, spore producing organisms?

Difficulty: Easy

Correct Answer: Fungi

Explanation:


Introduction / Context:
In older textbook classifications, fungi were often discussed under the broad heading of the plant kingdom, even though modern biology treats them as a separate kingdom. A key distinction is that fungi are non green and heterotrophic, unlike most plants that are green and autotrophic. This question checks your understanding of that difference.


Given Data / Assumptions:

  • The focus is on non green, heterotrophic organisms traditionally linked with plants.
  • The organisms are also spore producing.
  • Options include algae, fungi, ferns, both fungi and ferns, and bryophytes.


Concept / Approach:
Fungi lack chlorophyll, so they cannot perform photosynthesis. They obtain food by absorbing nutrients from dead organic matter or living hosts, making them heterotrophic. They reproduce by spores and include moulds, mushrooms and yeasts. In contrast, algae, ferns and bryophytes all contain chlorophyll and are capable of photosynthesis, even though some may have reduced green parts. Therefore, the group that best fits non green heterotrophic organisms in this traditional context is fungi.


Step-by-Step Solution:
Step 1: Identify the key words non green and heterotrophic. Step 2: Recall that fungi lack chlorophyll and obtain food by absorption. Step 3: Check that fungi reproduce by spores, matching the description. Step 4: Eliminate groups like algae, ferns and bryophytes, which are generally green and autotrophic. Step 5: Conclude that fungi alone satisfies all parts of the description.


Verification / Alternative check:
Think of examples: mushrooms and bread mould are fungi and clearly do not have green leaves. They grow on substrates and digest food externally. Words like saprophytic and parasitic are often used with fungi, reinforcing their heterotrophic nature. This mental survey confirms fungi as the correct group.


Why Other Options Are Wrong:
Option A, algae, are typically green or brown and carry out photosynthesis, so they are autotrophic. Option C, ferns, possess green fronds with chlorophyll and are autotrophic plants. Option D, both B and C, wrongly includes ferns, which do not match the non green condition. Option E, bryophytes, such as mosses and liverworts, also contain chlorophyll and make their own food.


Common Pitfalls:
Because older books sometimes placed fungi within the plant kingdom, students may confuse their basic nutritional mode. It is helpful to remember that green colour usually signals autotrophic photosynthetic organisms, while fungi form a separate pattern of nutrition. Focusing on the presence or absence of chlorophyll is a simple way to keep these groups apart.


Final Answer:
The non green, heterotrophic, spore producing group is Fungi.

Discussion & Comments

No comments yet. Be the first to comment!
Join Discussion