MCQ ON XYLEM / COMPLEX TISSUE /PERMANENT TISSUE class 11 for NEET | XYLEM/ COMPLEX TISSUE / PERMANENT TISSUE class 11| MCQ XYLEM/ COMPLEX TISSUE / PERMANENT TISSUE with Answer | Check the below NCERT MCQ question for class 11Biology based on the with Answers.
MCQ on XYLEM/ COMPLEX TISSUE / PERMANENT TISSUE class 11Biology with answers were prepared based on the latest pattern. We have provided class 11 Biology MCQs question with Answers to help students understand the concept very well.
MCQ ON XYLEM/ COMPLEX TISSUE / PERMANENT TISSUE is useful for NEET / CSIR / UGC / CBSE / ICSE / AIIMS / EXAM / AFMC EXAM / STATE LEVEL MEDICAL EXAM/ KVS PGT BIOLOGY / NVS PGT BIOLOGY EXAM 2023-2024 ,2025
MCQ ON XYLEM / COMPLEX TISSUE /PERMANENT TISSUE class 11 for NEET
INTRODUCTION:-
XYLEM / COMPLEX TISSUE / PERMANENT TISSUE :-
THE COMPLEX TISSUES ARE MADE OF MORE THAN ONE TYPE OF CELLS.
THIS WORK TOGETHER IS A UNIT.
Xylum and phloem constituent the complex tissues in plants.
XYLEM:-
XYLEM FUNCTION is a conducting tissue for water and minerals from roots to the stem and leaves . It also provides mechanical strength to the plants.
It is composed of four different kinds of elements , tracheids, vessels, xylem fibres , xylem parenchyma.
Gymnosperms lacks vessels in their xylem.
Tracheids are elongated or tube like cells with thick and lignified walls and tapering ends.
These are dead and are without protoplasm.The inner layers of cell walls have thickening which vary in form.
Vessel is along cylindrical tube like structure made of many cells called vessels members each with lignified walls and a large central cavity.
Xylem fibers have highly thickened walls and obliterated central lumens.
XYLEM parenchyma cells are living and thin walled and their cell walls are made up of cellulose.
They store food materials in the form of starch or fat .
The cells of the permanent tissues do not generally divide further. Permanent tissue having all cells similar in structure and functions are called simple tissues.
Permanent tissues having many different types of cells are called complex tissues.
Simple tissues:-a simple tissue is made of only one type of cells. The various simple tissues in plants are parenchyma, collenchyma and Sclerenchyma.
Parenchyma forms the major component within organs. The cells of the parenchyma are generally isodiametric.
They may be spherical , oval , round ,polygonal or elongated in shape.
Their walls are thin and made of cellulose.
They may either be closely packed or have small intercellular spaces.
The Parenchyma performs various functions like photosynthesis storage and secretion.
Collenchyma:-the Collenchyma occurs in layers below the epidermis in dicotyledonous plants.
It is found either as a homogeneous layer or patches.It consist of cells which are much thickened at the corners due to deposition of cellulose , hemicellulose and pectin.
Sclerenchyma:- it consist of long narrow cells with thick and lignified cell walls having a few or numerous pits.They are usually dead and without protoplasts.
MCQ XYLEM / COMPLEX TISSUE/ PERMANENT TISSUE class 11 for NEET/KVS PGT BIOLOGY / NVS PGT BIOLOGY EXAM 2023-2024,2025
1. A conducting tissue for water minerals from roots to the stems and leaves is
(a) xylem
(b) phloem
(c) parenchyma
(d) collenchyma
Ans (a) xylem
2. Xylum is composed of four different kinds of elements namely
(a) tracheids, vessels , xylem parenchyma , xylem fibres.
(b) tracheids, protoxylem, metaxylem , vessels
(c) tracheids, vessels , xylem Parenchyma ,sclereids
(d) none of the these
Ans. (a) tracheids, vessels , xylem parenchyma, xylem vessels
3. Which lacks vessels in their xylem?
(a) Monocotyledon
(b) dicotyledons
(c) angiosperms
(d) gymnosperm
Ans. (d) gymnosperm
4. The composition of xylem complex tissue which are elongated or tube like cells with thick and lignified walls and tapering ends.
(a) vessels
(b) xylem parenchyma
(c) tracheids
(d) all of these
Ans.(c) tracheids
5. Flowering plants which are the main water transporting the elements?
(a) tracheids and vessels
(b) tracheids and xylem parenchyma
(c) vessels and xylem fibers
(d) xylem parenchyma and xylem fibers
Ans.(a) tracheids and vessels
6. The presence of vessels is a characteristic feature of
(a) gymnosperm
(b) pteridophytes
(c) angiosperms
(d) bryophyte
Ans.(c) angiosperms
7. Which cells are living and thin walled and their cell walls are made of cellulose
(a) xylem parenchyma
(b) vessels
(c) xylem fibers
(d) tracheids
Ans.(a) xylem parenchyma
8. The composition of xylem highly thickened wall and obliterated central lumens. These may either be septate or aseptate.
(a) xylem parenchyma
(b) xylem fibres
(c) tracheids
(d) vessels
Ans.(b) xylem fibers
9. The xylem tissue which store food material in the form of starch or fat or other substances like tannin
(a) parenchyma
(b) Collenchyma
(c) Sclerenchyma
(d) xylem parenchyma
Ans. (d) xylem parenchyma
10. The radial conduction of water takes place by the ray of
(a) parenchymatous cells
(b) collenchyma
(c) sclerenchyma
(d) all the above
Ans. (a) parenchymatous cells
11. Which xylem tissues are dead and are without protoplast ?
(a) parenchyma
(b) tracheids
(c) Sclerenchyma
(d) phloem
Ans.(b) tracheids
12. Primary xylum is of two types, they are
a) protoxylem
b) metaxylem
c) both a and b
(d) xylem parenchyma
Ans . (c) both a and b
13. The first formed primary xylem elements are called
(a) protoxylem
(b) metaxylem
(c) both a and b
(d) endarch
Ans.(a) protoxylem
14. Later formed primary xylem is called
(a) metaxylem
(b) protoxylem
(c) both a and b
(d) parenchyma
Ans. (a) metaxylem
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15. In stems the protoxylem lies towards the centre pith and the metaxylem lies towards the periphery of the organ. This type of primary xylem is called
(a) exarch
(b) endarch
(c) Collenchyma
(d) all the above
Ans.(b) endarch
16. In roots the protoxylem lies towards periphery and the metaxylem lies towards the centre. Such arrangement of primary xylem is called
(a) exarch
(b) endarch
(c) Collenchyma
(d) sclereids
Ans.(a) exarch
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