English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

which observation below comes closest to explaining the basis for placing these organisms in different taxa?
a. some closely resemble animals, which lack cell walls
b. their cell walls are constructed form very different biochemicals
c. some have cell walls only for support
d. some have cell walls only for protection from herbivores
e. some have cell wasll only to control osmotic balance

2007-11-14 14:26:21 · 4 answers · asked by Colleen C 1 in Science & Mathematics Biology

4 answers

B
A. Plants cell walls are made of complex carbohydrates
B. Fungi cell walls are made form proteins (chitin)
C. Prokaryotes cell walls are made form peptidoglycan (also called murein), which is made for sugars, and protein bases(amino acids)

2007-11-14 16:02:03 · answer #1 · answered by sergei 2 · 0 0

a. some closely resemble animals, which lack cell walls

2007-11-14 22:34:09 · answer #2 · answered by violingirl7777 3 · 0 0

actually, I'd say that it's b
because b is more correct.
animals and plants have a common ancestor with archea.
so plant cell-walls are wierd compared to bacterial ones.

2007-11-14 22:38:53 · answer #3 · answered by The greatest and the best. 5 · 1 0

b is the correct answer.

The cell walls of plants, fungi and bacteria are all chemically different.

2007-11-14 22:54:52 · answer #4 · answered by OKIM IM 7 · 0 0

fedest.com, questions and answers