The function of lenticels are

(A)exchange of gases

(B)helps in transpiration

(C)helps in vegetative reproduction

(D)Both a and b

To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


If bark is removed then plants becomes_________ due to excess of water________

(A)thick, gain

(B)thin, loss

(C)dead, loss

(D)strong, intake

To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


In dicot root the complete ring of vascular bundle is formed by

(A)conjunctive tissue

(B)pericycle

(C)Endodermis

(D)Both A and B

To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


In dicot root vascular cambium is _________in origin.

(A)Primary

(B)Secondary

(C)Both A and B

(D)neither primary nor secondary

To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


The shape of the vascular bundle is __________in the beginning and later it becomes ___________in dicot root.

(A)wavy, circular

(B)circular, wavy

(C)circular , rectangular

(D)wavy, and trapezoid

To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


In dicot roots, secondary phloem is formed towards the _________ and secondary xylem is formed towards the __________ by the activity of vascular cambium.

(A)periphery, centre

(B)centre, periphery

(C)innerside, outerside

(D)Both B and C

To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


There are _________types of medullary rays formed in dicot roots during secondary growth.

(A)one

(B)two

(C)three

(D)many

To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


The common medullary rays between dicot stem and root is

(A)primary medullary rays

(B)secondary medullary rays

(C)Both A and B

(D)None of the above

To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:


Annual rings are present in

(A)dicot stem

(B)dicot root

(C)Both A and B

(D)none of these

Please attempt this question first.

Difficulty Level:


Secondary growth occurs in

(A)dicot root and stem of angiosperms

(B)dicot root and stem of gymnosperms

(C)monocot roots

(D)Both A and B

To view Explanation, Please buy any of the course from below.
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level: