NEET  >  Biology 31 Years NEET Chapterwise Solved Papers  >  31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 Download as PDF

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1


Test Description

30 Questions MCQ Test Biology 31 Years NEET Chapterwise Solved Papers | 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 for NEET 2022 is part of Biology 31 Years NEET Chapterwise Solved Papers preparation. The 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 questions and answers have been prepared according to the NEET exam syllabus.The 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 MCQs are made for NEET 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 below.
Solutions of 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 questions in English are available as part of our Biology 31 Years NEET Chapterwise Solved Papers for NEET & 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 solutions in Hindi for Biology 31 Years NEET Chapterwise Solved Papers course. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free. Attempt 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 | 30 questions in 25 minutes | Mock test for NEET preparation | Free important questions MCQ to study Biology 31 Years NEET Chapterwise Solved Papers for NEET Exam | Download free PDF with solutions
1 Crore+ students have signed up on EduRev. Have you?
31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 1

Select the correct pair.    [NEET 2021]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 1

The cells of medullary rays, adjoining these intrafascicular cambium become meristematic and form the interfascicular cambium.

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 2

Identify the incorrect statement.    [NEET 2020]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 2

In a large tree, only the outer secondary xylem (sapwood) serves in water conduction, while the inner part (heartwood) is composed of dead but structurally strong secondary xylem and is darker in colour due to the deposition of tannins, resins and oils.

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 3

Grass leaves curl inwards during very dry weather. Select the most appropriate reason from the following.   [NEET 2019]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 3

In grasses, certain adaxial epidermal cells along the veins modify themselves into large, empty, colourless cells. These are called bulliform cells. When the bulliform cells in the leaves have absorbed water and arc turgid, the leaf surface is exposed. When they are flaccid due to water stress, they make the leaves curl inwards to minimise water loss.

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 4

Secondary xylem and phloem in dicot stem are produced by    [NEET 2018]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 4
  • Vascular cambium is a type of lateral meristem that produces secondary tissues (xylem and phloem) during secondary growth. 
  • It is produced by two types of meristem: intrafascicular cambium (primary meristem occurring as strip in vascular bundles) and interfascicular cambium (secondary meristem which develops from permanent cells of medullary rays which occur at the level of intrafascicular strips).
  • The cells of vascular cambium are of two types : fusiform initials which produce secondary xylem towards outside and secondary phloem towards inner side and ray initials which give rise to vascular rays.
31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 5

The vascular cambium normally gives rise to     [NEET 2017]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 5

Cells of vascular cambium divide periclinal both on the outer and inner sides to form secondary permanent tissues, i.e., secondary xylem and secondary phloem.

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 6

As compared to a dicot root, a monocot root has

[2012M]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 6

The vascular bundles are arranged in a loose circle inside the endodermis of a monocot root. In a monocot root, more than six vascular bundles are present. It shows polyarch condition.

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 7

Gymnosperms are also called soft wood spermatophytes because they lack :

[2012]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 7

 Gymnosperms lack xylem fibres. Large amount of parenchymatous cells are present with secondary xylem tracheids. So, these are also known as softwood spermatophytes.

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 8

Water containing cavities in vascular bundles are found in :

[2012]     

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 8

Stem of maize has water containing cavities  in vascular bundles.

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 9

Closed vascular bundles lack

[2012]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 9

In closed vascular bundle cambium is absent between xylem and phloem.

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 10

Companion cells are closely associated with :

[2012]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 10

Companion cells are narrow, elongated and thin walled living cells. They lie on the sides of the  sieve tubes and are closely associated with them through compound plasmodesmata. It is supposed that the nuclei of the companion cells control the activities of the sieve tube through plasmodesmata. Companion cells also help in maintaining a proper pressure gradient in the sieve tube elements.

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 11

The common bottle cork is a product of :

[2012]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 11

The common bottle cork is the product of phellogen. Phellogen produces cork or phellem on the outer side. It consists of dead and compactly arranged rectangular cells that possess suberised cells walls. The cork cells contain tannins. Hence, they appear brown or dark brown in colour.

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 12

In Kranz anatomy, the bundle sheath cells have

[2011M]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 12

In Kranz anatomy, the bundle sheath cells have thick wall, no intracellular spaces and large number of chloroplasts.

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 13

Some vascular bundles are described as open because these

[2011M]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 13

Open means presence of cambium during secondary growth. Vascular cambium divides to form secondary xylem towards inner side while secondary phloem towards outside.

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 14

Function of companion cells is

[2011M]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 14

Function of companion cell is to load sugar and amino acids into sieve elements. These cells use transmembrane proteins to take up by active transport.

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 15

Which one of the following is wrongly matched?

[2011]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 15

Smut is a disease of cereals, corn, grasses and sorghum caused by many species of fungi.

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 16

The cork cambium, cork and secondary cortex are collectively called:

[2011]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 16

Phellem, phellogen and phelloderm are collectively called periderm.

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 17

In land plants, the guard cells differ from other epidermal cells in having :

[2011]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 17

Guard cells differ from epidermal cells in having chloroplast. The cell wall of guard cells are not uniform, inner walls are thicker than the outer walls, epidermal cells are uniformly thin.

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 18

Ground tissue includes

[2011]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 18

Ground tissue includes all tissues except epidermis and vascular bundles. The ground tissue comprises the bulk of the primary plant body. Parenchyma, collenchyma and sclerenchyma cells are common in the ground tissue.

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 19

Heartwood differs from sapwood in:

[2010]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 19

Heartwood differs from sapwood in having dead and non-conducting elements. In old trees, the inner region that comprises dead elements with highly lignified walls is called heartwood. Heartwood does not conduct water but gives mechanical support to the stem. On the other hand, the peripheral region, which is lighter in colour are called sapwood. It is involved in the conduction of water and minerals from root to leaf.

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 20

Which one of the following is not a lateral meristem?

[2010]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 20

Meristem is divided on the basis of position in plant bodies into apical meristem, lateral meristem and intercalary meristem. Lateral meristem is present on the lateral sides, that is fascicular and interfascicular cambium and cork cambium (phellogen).

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 21

The chief water conducting elements of xylem in gymnosperms are:

[2010]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 21

Tracheids are chief water conducting elements of xylem in gymnosperms. They are devoid of protoplasm and hence dead. The wall constituting the tracheids is hard, thick and lignified. These are elongated cells with tapering ends.

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 22

Reduction in vascular tissue, mechanical tissue and cuticle is characteristic of:  

[2009]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 22

Reduction in vascular tissue, mechanical tissue and cuticle is characteristic of hydrophytes.

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 23

In barley stem vascular bundles are:

[2009]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 23

In barley stem vascular bundles are closed and scattered. They are open only for a hours in the day time and never open at night. e.g Cereals.

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 24

Palisade parenchyma is absent in leaves of:

[2009]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 24

Palisade parenchyma is absent in leaves of Sorghum. It is a leaf tissue composed of columnar cells containing numerous chloroplasts in which the long axis of each cell is perpendicular to the leaf surface. The palisade parenchyma is usually directly beneath the epidermis of the upper surface of the leaf. The cells of the palisade parenchyma are cylindrical. Neighbouring cells look like the stakes of a palisade. Cells of the palisade parenchyma contain three to five times as many chloroplasts as those of the spongy parenchyma. The chloroplasts stay usually near the cell’s wall, since this adjustment guarantees optimal use of light.

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 25

The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is:

[2009]

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 26

Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem by

[2009]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 26

Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem by position of protoxylem. In dicot root the protoxylem is located near the periphery of the vascular cylinder while in dicot stem the protoxylem is located near the centre of vascular bundle i.e. the xylem is endarch.

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 27

Vascular tissues in flowering plants develop from:

[2008]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 27

Vascular tissues in flowering plants develop from plerome. Plerome is a central core of primary meristem which gives rise to all cells of the stele from the pericycle inward. 

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 28

The length of different internodes in a culm of sugarcane is variable because of

[2008]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 28

The length of different internodes in a culm of sugarcane is variable because of intercalary meristem. Intercalary meristem is not a part of apical meristem, occurs in the internodes of grasses (sugarcane) between leaf nodes and enables longitudinal growth of the stem.

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 29

Which one of the following is resistant to enzyme action?

[2008]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 29

Pollen exine is resistant to enzyme action. The hard outer layer called the exine is made up of sporopollenin which is one of the most resistant organic material known. It can withstand high temperatures and strong acids and alkali. No enzymes that degrades sporopollenin is so far known. 

31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 30

Passage cells are thin-walled cells found in______.

[2007]

Detailed Solution for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 - Question 30
  • The endodermis is the central, innermost layer of cortex in some land plants.
  • It is made of compact living cells surrounded by an outer ring of endodermal cells, that are impregnated with hydrophobic substances to restrict the apoplastic flow of water to the inside.  
  • Passage cells are endodermal cells of older roots, which have retained thin walls and Casparian strips rather than becoming suberized and waterproof like the other cells around them, to continue to allow some symplastic flow to the inside from cortex to pericycle.
Use Code STAYHOME200 and get INR 200 additional OFF
Use Coupon Code
Information about 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 Page
In this test you can find the Exam questions for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1 solved & explained in the simplest way possible. Besides giving Questions and answers for 31 Years NEET Previous Year Questions: Anatomy of Flowering Plants - 1, EduRev gives you an ample number of Online tests for practice