← Back to Botany

Anatomy Of Flowering Plants

324 Questions Start Errorless Test
All Exams Allen Errorless
NEET 2024 Q1 Errorless 6. Critical Thinking MCQ
In the given figure, which component has thin outer walls and highly thickened inner walls [NCERT Pg. No. 72]
A.
C
B.
D
C.
A
D.
B
NCERT Pg. No. 72; NEET 2024 Q2 Errorless 6. Critical Thinking MCQ
In the given figure, which inner components of the cell have thickened inner walls and highly thickened inner corners? Statement I : Parenchyma is living but collenchyma is dead tissue. Statement II : Gymnosperms lack xylem vessels but presence of xylem vessels is the characteristic of angiosperms. In the light of the above statements, choose the correct answer from the options given below
A.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
NEET 2024 Q3 Errorless 6. Critical Thinking MCQ
Bulliform cells are responsible for [NCERT Pg. No. 77]
A.
Inward curling of leaves in monocots
B.
Protecting the plant from salt stress
C.
Increased photosynthesis in monocots
D.
Providing large spaces for storage of sugars
NEET 2023 Q4 Errorless 6. Critical Thinking MCQ
Given below are two statements Statement I : Endarch and exarch are the terms often used for describing the position of secondary xylem in the plant body. Statement II : Exarch condition is the most common feature of the root system In the light of the above statements, choose the correct answer from the options given below
A.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
NEET 2023 Q5 Errorless 6. Critical Thinking MCQ
Identify the correct statements
(A) Lenticels are the lens-shaped openings permitting the exchange of gases.
(B) Bark formed early in the season is called hard bark.
(C) Bark is a technical term that refers to all tissues exterior to vascular cambium.
(D) Bark refers to periderm and secondary phloem.
(E) Phellogen is single-layered in thickness.
Choose the correct answer from the options given below
A.
A and D only
B.
A, B and D only
C.
B and C only
D.
B, C and E only
NEET 2023 Q6 Errorless 7. Assertion and Reason MCQ
Assertion: Late wood has fewer xylem elements with narrow vessels. Reason: Cambium is less active in winters.
A.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
NEET 2022 Q7 Errorless 6. Critical Thinking MCQ
In old trees the greater part of secondary xylem is dark brown and resistant to insect attack due to
(A) Secretion of secondary metabolites and their deposition in the lumen of vessels
(B) Deposition of organic compounds like tannins and resins in the central layers of stem
(C) Deposition of suberin and aromatic substances in the outer layer of stem
(D) Deposition of tannins, gum, resin and aromatic substances in the peripheral layers of stem
(E) Presence of parenchyma cells, functionally active xylem elements and essential oils
A.
D and E only
B.
B and D only
C.
A and B only
D.
C and D only
NEET 2022 Q8 Errorless 6. Critical Thinking MCQ
Read the following statements about the vascular bundles
(A) In roots, xylem and phloem in a vascular bundle are arranged in an alternate manner along the different radii
(B) Conjoint closed vascular bundles do not possess cambium
(C) In open vascular bundles, cambium is present in between xylem and phloem
(D) The vascular bundles of dicotyledonous stem possess endarch protoxylem
(E) In monocotyledonous root, usually there are more than six xylem bundles present
A.
A, B, C and D only
B.
A, C, D and E only
C.
A, B and D only
D.
A, B, C, D and E only
NEET 2022 Q9 Errorless 6. Critical Thinking MCQ
The anatomy of springwood shows some peculiar features. identify the correct set of statements about springwood
(A) It is also called as the earlywood
(B) In spring season cambium produces xylem elements with narrow vessels
(C) It is lighter in colour
(D) The springwood along with autumn wood shows alternate concentric rings forming annual rings
(E) It has lower density
A.
A, B and D only
B.
C, D and E only
C.
A, B, D and E only
D.
A, C, D and E only
NEET 2021 Q10 Errorless 6. Critical Thinking MCQ
Which of the following is an incorrect statement
A.
Microbodies are present both in plant and animal cells
B.
The perinuclear space forms a barrier between the materials present inside the nucleus and that of the cytoplasm
C.
Nuclear pores act as passages for proteins and RNA molecules in both directions between nucleus and cytoplasm
D.
Mature sieve tube elements possess a conspicuous nucleus and usual cytoplasmic organelles
NEET 2021 Q11 Errorless 6. Critical Thinking MCQ
Match Column-I with Column-II
Column-IColumn-II
(A)Lenticels
(B)Cork cambium
(C)Secondary cortex
(D)Cork
(P)Phellogen
(Q)Suberin deposition
(R)Exchange of gases
(S)Phelloderm
A.
A−R, B−P, C−S, D−Q
B.
A−Q, B−R, C−S, D−P
C.
A−R, B−Q, C−P, D−R
D.
A−S, B−P, C−R, D−Q
NEET 2021 Q12 Errorless 6. Critical Thinking MCQ
Match Column-I with Column-II
Column-IColumn-II
(A)Cells with active division capacity
(B)Tissue having all cells similar in structure and function
(C)Tissue having different types of cells
(D)Dead cells with highly thickened walls and narrow lumen
(P)Vascular tissues
(Q)Meristematic tissue
(R)Sclereids
(S)Simple tissue
A.
A−S, B−R, C−Q, D−P
B.
A−P, B−Q, C−R, D−S
C.
A−R, B−Q, C−S, D−P
D.
A−Q, B−S, C−P, D−R
NEET 2021 Q13 Errorless 6. Critical Thinking MCQ
Select the correct pair
A.
In dicot leaves, vascular Conjunctive tissue bundles are surrounded by large thick-walled cells
B.
Cells of medullary rays Interfascicular that form part of cambium cambial ring
C.
Loose parenchyma cells Spongy rupturing the epidermis parenchyma and forming a lens shaped opening in bark
D.
Large colourless empty Subsidiary cells cells in the epidermis of grass leaves
NEET 2020 Q14 Errorless 6. Critical Thinking MCQ
The transverse section of a plant shows following anatomical features
[NCERT Pg. No. 76]
(i) Large number of scattered vascular bundles surrounded by bundle sheath
(ii) Large conspicuous parenchymatous ground tissue
(iii) Vascular bundles conjoint and closed
(iv) Phloem parenchyma absent
A.
Dicotyledonous root
B.
Monocotyledonous stem
C.
Monocotyledonous root
D.
Dicotyledonous stem
NEET 2020 Q15 Errorless 6. Critical Thinking MCQ
Identify the incorrect statement
A.
Due to deposition of tannins, resins, oils etc., heart wood is dark in colour
B.
Heart wood does not conduct water but gives mechanical support
C.
Sapwood is involved in conduction of water and minerals from root to leaf
D.
Sapwood is the innermost secondary xylem and is lighter in colour
NEET 2019 Q16 Errorless 2. The tissue system MCQ
Phloem in gymnosperms lacks
A.
Albuminous cells and sieve cells
B.
Sieve tubes only
C.
Companion cells only
D.
Both sieve tubes and companion cells
NEET 2019 Q17 Errorless 2. The tissue system MCQ
Xylem translocates
A.
Water only
B.
Water and mineral salts only
C.
Water, mineral salts and some organic nitrogen only
D.
Water, mineral salts, some organic nitrogen and hormones
NEET 2018 Q18 Errorless 4. Secondary growth MCQ
Secondary xylem and phloem in dicot stem are produced by
A.
Apical meristems
B.
Vascular cambium
C.
Phellogen
D.
Axillary meristems
NEET 2017 Q19 Errorless 1. Tissue(General) MCQ
The vascular cambium normally gives rise to
A.
Phelloderm
B.
Primary phloem
C.
Secondary xylem
D.
Periderm
NEET 2017 Q20 Errorless 4. Secondary growth MCQ
Identify the wrong statement in context of heartwood
A.
Organic compounds are deposited in it
B.
It is highly durable
C.
It conducts water and minerals efficiently
D.
It comprises dead elements with highly lignified walls
NEET 2017 Q21 Errorless 4. Secondary growth MCQ
Which of the following is made up of dead cells
A.
Xylem parenchyma
B.
Collenchyma
C.
Phellem
D.
Phloem
NEET (Phase-II) 2016 Q22 Errorless 2. The tissue system MCQ
Cortex is the region found between [NCERT Pg. No. 74]
A.
Endodemis and vascular bundle
B.
Epidermis and stele
C.
Pericycle and endodermis
D.
Endodermis and pith
NEET (Phase-II) 2016 Q23 Errorless 6. Critical Thinking MCQ
A few drops of sap were collected by cutting across a plant stem by a suitable method. The sap was tested chemically. Which one of the following test results indicated that it is phloem sap
A.
Absence of sugar
B.
Acidic
C.
Alkaline
D.
Low refractive index
AIPMT (Cancelled) 2015 Q24 Errorless 3. Internal structure of root, stem and leaf MCQ
A major characteristic of the monocot root is the presence of [NCERT Pg. No. 73]
A.
Scattered vascular bundles
B.
Vasculature without cambium
C.
Cambium sandwiched between phloem and xylem along the radius
D.
Open vascular bundles
AIPMT 2015 Q25 Errorless 4. Secondary growth MCQ
Read the different components from (A) to (D) in the list given below and tell the correct order of the components with reference to their arrangement from outer side to inner side in a woody dicot stem (A) Secondary cortex
(B) Wood
(C) Secondary phloem
(D) Phellem
A.
A, B, D, C
B.
D, A, C, B
C.
D, C, A, B
D.
C, D, B, A