Root

Read the following statement:

I. Pneumatophores help the plant root to take air or oxygen.

II. Floating hydrophytes possess well developed root cap.

III. Edible part of Zingiber is underground stem. 

IV. Prop roots contain root cap.

V. Cladodes are green stems of limited growth which have taken over the function of photosynthesis from leaves. 

How many of the above statements are incorrect?

Which region of the root helps in the lengthening of the root?

Which root emerges from the radicle?

Velamen is found in _____.

Which of the following is not found in root tip?

Root hairs develop from

Rearrange the following zones as seen in the root in the vertical section and choose the correct option.
A. Root hair zone
B. Zone of meristems
C. Root cap zone
D. Zone of elongation

Distribution of growth in a root by marking it at equal intervals with Indian ink was originally studied by

Assertion : Assimilatory roots can photosynthesise.
Reason : Assimilatory roots possess chlorophyll.

Assertion : Momordica roots look like necklace.
Reason : Momordica possess moniliform roots.

Assertion : Orchis root resembles human hand.
Reason : Orchis is an example of fasciculated fleshy roots.

Assertion: Deep feeder tap root system is called the cymose tap root system.

Reason: Deep feeder root system is found in trees.

Assertion: Root hairs are present on the whole root surface.
Reason: Root hairs absorb water.

Assertion: Root pockets are similar in all terms to root caps.

Reason: Root caps and root pockets have the ability to regenerate.

Assertion: In floating aquatic plants, root caps are absent.

Reason: Root pockets are present in aquatic plants.

Assertion: Roots contain nodes but no leaves or buds

Reason: Root branches arise endogenously.

A plant called plantless root is

Rearrange the following zones as seen in the root in vertical section and choose the correct option
A. Root hair zone
B. Zone of meristems
C. Rootcap zone
D. Zone of maturation
E. Zone of elongation

Buttress roots are: