EVERYDAY SCIENCE

SCIENCE

PLANT KINGDOM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why is a rhizoid not a true root?
A
it has too few root hairs
B
it is anchored to a structure
C
it doesn’t absorb water
D
it is one layer thick
Explanation: 

Detailed explanation-1: -Rhizoids are not roots because they do not have the cellular structure to be able to absorb water and nutrients internally but together can form a mass of rhizoids that absorb water and nutrients externally by capillary action.

Detailed explanation-2: -Rhizoids are thin, root-like structures. They aren’t considered true roots, though, because they lack vascular tissue.

Detailed explanation-3: -Bryophytes are a group of nonvascular plants that includes mosses, liverworts, and hornworts. Rhizoids are the tiny structures that stick out from the roots of bryophytes. Rhizoids absorb water and nutrients from the soil through the process of capillary action.

Detailed explanation-4: -Rhizoids are filamentous outgrowths on thallus of bryophytes. For example-mosses. Rhizoids are not roots but their functions are similar. Rhizoids provide anchorage and also absorb water and minerals by capillary action.

Detailed explanation-5: -Rhizoids are very simple, whereas roots are much more complicated. A rhizoid (found in bryophytes or ferns) is basically just a filament that anchors the plant to the ground. A root, on the other hand contains vascular tissue, playing a key role in water and nutrient uptake.

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