Debate and discussion of any biological questions not pertaining to a particular topic.

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Post by starllian » Sat May 09, 2009 10:23 pm

Tell me if this is a bad question:

Fungi differ essentially from green plants in that fungi
A - Are unicellular plants
B - Lack Cellulose Wall
C - Cannot synthesize protein
D - Cannot Absorb Water
E - Are unable to make Glucose from CO2 and H2O

I was thinking B but they listed the answer as E

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Post by alextemplet » Sun May 10, 2009 5:28 pm

Fungi do have cell walls similar to plants. The crucial difference is that they are heterotrophic, meaning that they cannot synthesize their own food source (glucose), whereas plants, being autotrophic, can make glucose through photosynthesis. The answer is E.
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Post by biohazard » Mon May 11, 2009 6:04 am

I'm not sure I got your question right... all the options are wrong, are you asking which one is wrong the most? :P

A) Fungi are not plant, nor are they necessarily unicellular
B) They have chitine instead of cellulose as the main component of their cell wall
C) They can synthesize protein just like all nucleated cells and prokaryotes
D) They can absorb water, all living cells/organisms can
E) They are heterothrops

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Post by Sepals » Mon May 11, 2009 10:42 am

It's B and E.

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Post by MrMistery » Mon May 11, 2009 1:23 pm

I think the key point in the question is "essential". It's basically asking "What's the biggest difference between plants and fungi?" And the answer is indeed B. It is kind of a crappy question though

The only similarities between plant and fungi cell walls is that they are called the same and that they share somewhat similar mechanical roles. The structure of the fungi cell wall is very different, it is made of chitin (poly-N-acetylglucosamine - thus a nitrogen containing sugar). Also, it cannot be stretched in response to a hormone, like the plant cell wall can in response to auxin. Not least, there is probably a lot less signaling which involves the fungi cell wall, whereas the plant cell wall can be used as a source of information.
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Post by freshbiology » Sat Jul 18, 2009 6:41 am

Choice E is correct. Fungi lack the ability to synthesize glucose as Green Plants do. Stated in another way, Fungi cannot carry out photosynthesis. And this has been one of the main reasons fungi were excluded from the Plant Kingdom.

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Post by AstusAleator » Mon Jul 20, 2009 4:47 am

Yep, choice E.
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