NCERT CLASS 11 | TOPIC : ANATOMY OF FLOWERING PLANTS | PYQB (NEW) | NEET BIOLOGY ONLINE TEST

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NCERT CLASS 11 | TOPIC : ANATOMY OF FLOWERING PLANTS | PYQB OSWAAL | NEET ONLINE TEST | KALVISOLAI.

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NCERT CLASS 11 | TOPIC : ANATOMY OF FLOWERING PLANTS | PYQB (NEW) | NEET BIOLOGY ONLINE TEST

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It contains 49 important questions. Choose the most correct answer. Then check your answer. Try again if there are errors. Regards : kalvisolai.net

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1 ➤ 1. Match List-I with List-II. [NEET 2021] :

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(A) Cells with active cell division capacity - (i) Vascular tissues

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(B) Tissues having all cells similar in structure and function - (ii) Meristematic tissues

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(C) Tissue having different types of cells - (iii) Scleritis

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(D) Dead cells with highly thickened walls and narrow lumen - (iv) Simple tissue

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(a) (A)-(iii) (B)-(ii) (C)-(iv) (D)-(i) b) (A)-(ii) (B)-(iv) (C)-(i) (D)-(iii) (c) (A)-(iv) (B)-(iii) (C)-(ii) (D)-(i) (d) (A)-(i) (B)-(ii) (C)-(iii) (D)-(iv)

2 ➤ 2. Match List-I with List-II. [NEET 2021]

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(A) Lenticels - (i) Phellogen

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(B) Cork cambium - (ii) Suberin deposition

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(C) Secondary cortex - (iii) Exchange of gases

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(D) Cork - (iv) Phelloderm

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(a) (A)-(iv) (B)-(ii) (C)-(i) (D)-(iii) (b) (A)-(iv) (B)-(i) (C)-(iii) (D)-(ii) (c) (A)-(iii) (B)-(i) (C)-(iv) (D)-(ii) (d) (A)-(ii) (B)-(iii) (C)-(iv) (D)-(i)

3 ➤ 3. Which of the following is an incorrect statement? [NEET 2021]

(a) Nuclear pores act as passages for proteins and RNA molecules in both directions between nucleus and cytoplasm. (b) Mature sieve tube elements possess a conspicuous nucleus and usual cytoplasmic organelles. (c) Microbodies are present both in plant and animal cells. (d) The perinuclear space forms a barrier between the materials present inside the nucleus and that of the cytoplasm.

4 ➤ 4. Select the correct pair. [NEET 2021]

(a) Loose parenchyma – Spongy cell rupturing the parenchyma epidermis and forming a lens shaped opening in bark (b) Large colorless – Subsidiary cells empty cells in the epidermis of grass leaves (c) In dicot leaves, – Conjunctive vascular bundles tissue are surrounded by large thickwalled cells (d) Cells of – Interfascicular medullary rays cambium that form part of cambial ring

5 ➤ 5. Identify the incorrect statement. [NEET (Phase-I) 2020]

(a) Sapwood is involved in the conduction of water and minerals from root to leaf. (b) Sapwood is the innermost secondary xylem and lighter in colour. (c) Due to deposition of tannis, resins, oils, etc., heart wood is dark in colour. (d) Heart wood does not conduct water but give mechanical support.

6 ➤ 6. The transverse section of a plant shows following anatomical features [NEET (Phase-I) 2020] (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. Identify the category of plant and its part

(a) Monocotyledonous root b) Dicotyledonous stem (c) Dicotyledonous root (d) Monocotyledonous stem

7 ➤ 7. Which of the following statements about cork cambium is incorrect? [NEET (Phase-II) 2020]

(a) It forms secondary cortex on its outer side. (b) It forms a part of periderm. (c) It is responsible for the formation of lenticels. (d) It is a couple of layers thick.

8 ➤ 8. Large, empty colourless cells of the adaxial epidermis along the veins of grass leaves are [NEET (Phase-II) 2020]

(a) lenticels. (b) guard cells. (c) bundle sheath cells. (d) bulliform cells.

9 ➤ 9. Grass leaves curl inwards during every dry weather. Select the most appropriate reason from the following: [NEET 2019]

(a) Flaccidity of bulliform cells (b) Shrinkage of air spaces in spongy mesophyll (c) Tyloses in vessels (d) Closure of stomata

10 ➤ 10. Phloem in gymnosperms lacks [NEET 2019]

(a) sieve tubes only. (b) companion cells only. c) both sieve tubes and companion cells. (d) albuminous cells and sieve cells.

11 ➤ 11. Which of the statements given below is not true about formation of annual rings in trees? [NEET 2019]

(a) Differential activity of cambium causes light and dark bands of tissue-early and late wood respectively. b) Activity of cambium depends upon variation in climate. (c) Annual rings are not prominent in trees of temperate region. (d) Annual ring is a combination of spring wood and autumn wood produced in a year.

12 ➤ 12. Xylem translocates [NEET 2019]

(a) water and mineral salts only. (b) water, mineral salts and some organic nitrogen only. (c) water, mineral salts, some organic nitrogen and hormones. (d) water only.

13 ➤ 13. Tracheids differ from other tracheary elements in: [AIPMT 2014]

(a) Having casparian strips (b) Being imperforate (c) Lacking nucleus (d) Being lignified

14 ➤ 14. Companion cells are closely associated with: [AIPMT (Prelims) 2012]

(a) Trichomes (b) Guard cells (c) Sieve elements (d) Vessel elements

15 ➤ 15. The chief water conducting elements of xylem in gymnosperms are: [AIPMT (Prelims) 2010]

(a) Tracheids (b) Vessels (c) Fibres (d) Transfusion tissue

16 ➤ 16. Which one of the following is not a lateral meristem? [AIPMT (Prelims) 2010]

(a) Intercalary meristem (b) Intrafascicular cambium (c) Interfascicular cambium (d) Phellogen

17 ➤ 17. Transport of food material in higher plants: [AIPMT (Mains) 2010]

(a) Companion cells (b) Transfusion tissue (c) Tracheids (d) Sieve elements

18 ➤ 18. The length of different internodes in a culm of sugarcane is variable because of: [CBSE PMT (Prelims) 2008]

(a) Intercalary meristem (b) Shoot apical meristem (c) Size of lamina of lower node (d) All of the above

19 ➤ 19. A common structural feature of vessel elements and sieve tube elements is: [AIPMT (Prelims) 2006]

(a) Thick secondary walls (b) Pores on lateral walls (c) Presence of P-protein (d) Enucleate condition

20 ➤ 1. Stomata in grass leaf are: [NEET 2018]

(a) Rectangular (b) Kidney shaped (c) Dumb-bell shaped (d) Barrel shaped

21 ➤ 2. Cortex is the region found between: [NEET (Phase-II) 2016]

(a) Epidermis and stele (b) Pericycle and endodermis (c) Endodermis and pith (d) Endodermis and vascular bundles

22 ➤ 3. Specialised epidermal cells surrounding the guard cells are called: [NEET 2016]

(a) Lenticels (b) Complimentary cells (c) Subsidiary cells (d) Bulliform cells

23 ➤ 4. Vascular bundles in monocotyledons are considered closed because: [AIPMT 2015]

(a) Xylem is surrounded all around by phloem (b) A bundle sheath surrounds each bundle (c) Cambium is absent (d) There are no vessels with perforations

24 ➤ 5. Closed vascular bundles lack: [AIPMT (Prelims) 2012]

(a) Cambium (b) Pith (c) Ground tissue (d) Conjunctive tissue

25 ➤ 6. Ground tissue includes: [AIPMT (Prelims) 2011]

(a) All tissues internal to endodermis (b) All tissues external to endodermis (c) All tissues except epidermis and vascular bundles (d) Epidermis and cortex

26 ➤ 7. In land plants,the guard cells differ from other epidermal cells in having :[AIPMT (Prelims) 2011]

(a) Chloroplasts (b) Cytoskeleton (c) Mitochondria (d) Endoplasmic reticulum

27 ➤ 8. Some vascular bundles are described as open because these: [AIPMT (Mains) 2011]

(a) Possess conjunctive tissue between xylem and phloem (b) Are not surrounded by pericycle (c) Are surrounded by pericycle but no endodermis (d) Are capable of producing secondary xylem and phloem

28 ➤ 9. In Barley stem, the vascular bundles are: [CBSE PMT (Prelims) 2010]

(a) Open and scattered (b) Closed and scattered (c) Closed and radial (d) Open and in a ring

29 ➤ 10. Root hairs develop from the region of:

(a) Maturation (b) Elongation (c) Root cap (d) Meristematic activity

30 ➤ 1. Casparian strips occur in: [NEET 2017]

(a) Cortex (b) Pericycle (c) Epidermis (d) Endodermis

31 ➤ 2. A major characteristic of the monocot root is the presence of: [AIPMT 2015]

(a) Cambium sandwiched between phloem and xylem along the radius (b) Open vascular bundles (c) Scattered vascular bundles (d) Vasculature without cambium

32 ➤ 3. As compared to a dicot root, a monocot root has: [AIPMT (Mains) 2012]

(a) More abundant secondary xylem (b) Many xylem bundles (c) Inconspicuous annual rings (d) Relatively thicker periderm

33 ➤ 4. The water containing cavities in vascular bundles occur in: [CBSE PMT 2012]

(a) Sunflower (b) Maize (c) Pinus (d) Cycas

34 ➤ 5. Thin-walled passage cells occur in: [CBSE PMT 2007]

(a) Phloem elements as entry points (b) Testa for emergence of embryonal axis (c) Central area of style for passage of pollen tube (d) Endodermis of root for quick transport of water from cortex to pericycle.

35 ➤ 1. Secondary xylem and phloem in dicot stem are produced by: [NEET 2018]

(a) Phellogen (b) Vascular cambium (c) Apical meristems (d) Axillary meristems

36 ➤ 2. Plants having little or no secondary growth are: [NEET 2018]

(a) Conifers (b) Deciduous angiosperms (c) Grasses (d) Cycads

37 ➤ 3. The vascular cambium normally gives rise to: [NEET 2017]

(a) Phelloderm (b) Primary phloem (c) Secondary xylem (d) Periderm

38 ➤ 4. Which of the following is made up of dead cells: [NEET 2017]

(a) Xylem parenchyma (b) Collenchyma (c) Phellem (d) Phloem

39 ➤ 5. Identify the wrong statement in context of heartwood. [NEET 2016]

(a) Organic compounds are deposited in it (b) It is highly durable (c) It conducts water and minerals efficiently (d) It comprises of dead elements with highly lignified walls

40 ➤ 6. The balloon shaped structures called tyloses: [NEET 2016]

(a) Are linked to ascent of sap through xylem vessels (b) Originate in the lumen of vessels (c) Characterises the sapwood (d) Are extensions of xylem parenchyma cells into vessels

41 ➤ 7. You are given a fairly old piece of dicot stem and dicot root. Which of the following anatomical structure will you use to distinguish between the two: [AIPMT 2014]

(a) Secondary xylem (b) Secondary phloem (c) Protoxylem (d) Cortical cells

42 ➤ 8. Age of a tree can be estimated by: [NEET 2013]

(a) Biomass (b) Number of annual rings (c) Diameter of its heartwood (d) Its height and girth

43 ➤ 9. Lenticels are involved in: [NEET 2013]

(a) Photosynthesis (b) Transpiration (c) Gaseous exchange (d) Food transport

44 ➤ 10. Common bottle cork is the product of: [CBSE PMT 2012]

(a) Xylem (b) Dermatogen (c) Phellogen (d) Vascular cambium

45 ➤ 11. The cork cambium, cork and secondary cortex are collectively called: [AIPMT (Prelims) 2011]

(a) Phellem (b) Phelloderm (c) Phellogen (d) Periderm

46 ➤ 12. Heart wood differs from sapwood in: [AIPMT (Prelims) 2010]

(a) Being susceptible to pests and pathogens (b) Presence of rays and fibres (c) Absence of vessels and parenchyma (d) Having dead and non-conducting elements

47 ➤ 13. Anatomically fairly old dicotyledonous root is distinguished from the dicotyledonous stem by: [AIPMT (Prelims) 2009]

(a) Absence of secondary phloem (b) Presence of cortex (c) Position of protoxylem (d) Absence of secondary xylem

48 ➤ 14. Annular and spiral thickened conducting elements generally develop in protoxylem when root or stem is [CBSE PMT 2009]

(a) Widening (b) Differentiating (c) Maturing (d) Elongating

49 ➤ 15. For a cortical study of secondary growth in plants which one of the following pairs is suitable? [AIPMT (Prelims) 2007]

(a) Wheat and maiden hair fern (b) Sugarcane and sunflower (c) Teak and pine (d) Deodar and fern

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