Biology · chapter PYQs

Anatomy of Flowering Plants, on the exam screen.

4 questions from NEET 2026, NEET 2020, 4 minutes, marked +4 / −1. See them with solutions.

Anatomy of Flowering Plants · PYQs

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Question 1 · NEET 2026 · Q99 · +4 / −1
The main function of bulliform cells in grasses is :
Answer and explanation
Answer: (4)
Bulliform cells are large, empty, colourless epidermal cells in grass leaves. Under water stress they lose turgor and become flaccid, making the leaf roll or fold inward, which reduces the exposed surface area and thus minimizes transpirational water loss.

Question 2 · NEET 2026 · Q113 · +4 / −1

Match List-I with List-II and choose the correct answer from the options given below:

List I	List II
P) Conjunctive tissue	I) Specialised cells in the vicinity of guard cells
Q) Casparian strips	II) Endodermal cells rich in starch
R) Subsidiary cells	III) Tissue between xylem and phloem
S) Starch sheath	IV) Endodermal cells with suberin deposition

Answer and explanation

Answer: (3)

Conjunctive tissue is the parenchyma lying between xylem and phloem (III). Casparian strips are suberin deposits on the walls of endodermal cells (IV). Subsidiary cells are specialised epidermal cells surrounding the guard cells (I). The starch sheath is the innermost cortical (endodermal) layer whose cells are rich in starch (II). Hence P-III, Q-IV, R-I, S-II.

Question 3 · NEET 2020 · Q8 · +4 / −1
Identify the incorrect statement.
Answer and explanation
Answer: (2)
Sapwood is not the innermost secondary xylem; it is the outer, living part of the secondary xylem that is involved in water and mineral conduction. Heartwood is the inner, non-living part that provides mechanical support and is darker in color due to deposits of tannins, resins, and oils. Chapter: Anatomy of Flowering Plants.
Question 4 · NEET 2020 · Q52 · +4 / −1
The transverse section of a plant shows following anatomical features :

Statement I: Large number of scattered vascular bundles surrounded by bundle sheath
Statement II: Large conspicuous parenchymatous ground tissue
Statement III: Vascular bundles conjoint and closed
Statement IV: Phloem parenchyma absent

Identify the category of plant and its part :
Answer and explanation
Answer: (4)
The described features-scattered vascular bundles, large parenchymatous ground tissue, conjoint and closed vascular bundles, and absence of phloem parenchyma-are characteristic of a monocotyledonous stem. Chapter: Anatomy of Flowering Plants.