Home
Class 12
BIOLOGY
What are coralloid roots in cycas ?...

What are coralloid roots in cycas ?

Text Solution

AI Generated Solution

**Step-by-Step Solution:** 1. **Definition of Coralloid Roots**: Coralloid roots are specialized roots found in Cycas, a genus of cycads. These roots are distinct from normal roots due to their unique structure and function. 2. **Function of Coralloid Roots**: The primary function of coralloid roots is to establish a mutualistic relationship with cyanobacteria. This relationship is beneficial for both organisms involved. 3. **Mutualism with Cyanobacteria**: In this symbiotic relationship, cyanobacteria live within the coralloid roots and are able to fix atmospheric nitrogen. This nitrogen is then made available to the plant, which enhances its growth and nutrient uptake. ...
Promotional Banner

Topper's Solved these Questions

  • PLANT KINGDOM

    VMC MODULES ENGLISH|Exercise SOLVED EXAMPLES|15 Videos

  • PLANT KINGDOM

    VMC MODULES ENGLISH|Exercise PRACTICE EXERCISE-1|5 Videos

  • PLANT KINGDOM

    VMC MODULES ENGLISH|Exercise IMPECCABLE|56 Videos

  • ORGANISMS & POPULATIONS

    VMC MODULES ENGLISH|Exercise In - Chapter exercise C|10 Videos

  • PRINCIPLES OF INHERITANCE AND VARIATIO

    VMC MODULES ENGLISH|Exercise IMPECCABLE|56 Videos

Similar Questions

Explore conceptually related problems

Coralloid roots of Cycas has

Coralloid roots of Cycas has

Coralloid roots of Cycas are

The coralloid roots of Cycas have:

Read the following five statements (A to E) and select the option with all correct statement (A) Mosses and Lichens are the first organisms to colonise a bare rock. (B) Seloginella is a homopourous pteridophyte. (C) Coralloid roots in Cycas have VAM. (D) Main plant body in bryophytes is gametophytic whereas in pteridophytes it is sporophytic. (E) In Gymnoperms, male and female gametophytes are present within sporangla located on sporophyte.

Read the following five statements (A to E) and select the option with all correct statement (A) Mosses and Lichens are the first organisms to colonise a bare rock. (B) Seloginella is a homospourous pteridophyte. (C) Coralloid roots in Cycas have VAM. (D) Main plant body in bryophytes is gametophytic whereas in pteridophytes it is sporophytic. (E) In Gymnoperms, male and female gametophytes are present within sporangia located on sporophyte.

Read the following five statements (A to E) and select the option with all correct statement (A) Mosses and Lichens are the first organisms to colonise a bare rock. (B) Seloginella is a homopourous pteridophyte. (C) Coralloid roots in Cycas have VAM. (D) Main plant body in bryophytes is gametophytic whereas in pteridophytes it is sporophytic. (E) In Gymnoperms, male and female gametophytes are present within sporangla located on sporophyte.

Assertion : In cycas, nitrogen fixation is found Reason : In coralloid roots of cycas, cyanobacteria present

Algal zone is characteristic of (a) Coralloid root of Cycas (b) Normal root of Cycas (c) Normal root of Pinus (d) Mycorrhizal root of Pinus

A character present in coralloid roots and absent in dicot roots is (a) Algal zone (b) Xylem (c) Cortex (d) Pith