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Practice 1

Multiple-Choice Questions (MCQ) 1. Which of the following is NOT a type of tissue system based on structure and location? A. Epidermal Tissue System B. Ground Tissue System C. Vascular Tissue System D. Meristematic Tissue System Answer: D 2. The epidermis of the root is often referred to as: A. Pericycle B. Cortex C. Endodermis D. Epiblema Answer: D 3. In dicot stems, the vascular bundles are arranged in a: A. Scattered pattern B. Radial arrangement C. Ring D. Concentric circles Answer: C 4. The vascular bundles in a monocot stem are described as: A. Open and conjoint B. Closed and conjoint C. Open and radial D. Closed and radial Answer: B 5. The main function of the cuticle is to: A. Facilitate gaseous exchange B. Prevent water loss C. Store food D. Provide mechanical support Answer: B 6. The mesophyll in a dorsiventral (dicot) leaf is differentiated into: A. Palisade and sclerenchyma B. Spongy and collenchyma C. Palisade and spongy parenchyma D. Endodermis and pericycle Answer: C 7. ...
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Questions and their answers

Questions and their answers 1. Question: What is the defining feature of a dicot root's vascular bundle arrangement? Answer: The vascular bundles are arranged radially, with the xylem forming a star-shaped pattern in the center. 2. Question: How does the pith of a monocot root differ from that of a dicot root? Answer: A monocot root has a large, well-developed pith, while a dicot root has a small or absent pith. 3. Question: In a dicot stem, what is the specific term for the arrangement of vascular bundles? Answer: The vascular bundles are arranged in a ring. 4. Question: Why are the vascular bundles in a monocot stem described as "closed"? Answer: They are closed because they lack cambium, which means they cannot undergo secondary growth. 5. Question: What is the primary function of collenchyma cells in a dicot stem's hypodermis? Answer: They provide mechanical support to the young, growing stem. 6. Question: What is the main structural difference in the mesophyll of...
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MCQ - Class 11 Biology Unit 2

  NCERT Class 11 Biology Unit 2 (Structural Organisation in Plants and Animals) for the 2025-26 academic year. Multiple Choice Questions (MCQs)  * Which of the following is a characteristic feature of a stem?    a) Presence of root cap    b) Unicellular root hairs    c) Bears nodes and internodes    d) Develops from radicle    Answer: c) Bears nodes and internodes    Reasoning: Root cap and root hairs are root features. Radicle gives rise to roots. Nodes and internodes are characteristic of stems.  * In which type of venation do veins and veinlets form a network?    a) Parallel venation    b) Reticulate venation    c) Both a and b    d) Neither a nor b    Answer: b) Reticulate venation    Reasoning: Reticulate venation is characterized by a network of veins and veinlets, typically found in dicot leaves. Parallel venation involves veins running parallel t...
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Questions Paper - Chapter 6

Questions Paper 1 1-Mark Questions (Attempt all 10 questions) (Total: 10 Marks)  * What is the outermost protective layer of a plant organ called?  * Which type of vascular bundle is characterized by the presence of cambium?  * Name the tissue that forms the continuous undifferentiated mass in a monocot stem.  * In a dicot root, what is the arrangement of xylem called where the protoxylem is located towards the outside?  * What is the main function of the cuticle on the epidermis of a leaf?  * In which part of the dicot stem do lateral roots originate?  * What is the primary function of the cortex in both roots and stems?  * Which type of venation is characteristic of an isobilateral leaf?  * Name the special cells in the epidermis of monocot leaves that help in rolling and unrolling.  * What is the location of the vascular bundles in a monocot stem? 2-Mark Questions (Attempt 3 questions) (Total: 10 Marks)  * Differentiate between t...
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MCQ - Fruits

Fruits  * A fruit is botanically defined as:    a) A sweet, fleshy structure eaten by humans.    b) The mature and ripened ovule after fertilization.    c) The mature and ripened ovary after fertilization.    d) The entire inflorescence that becomes fleshy.    Answer: c) The mature and ripened ovary after fertilization.  * The wall of the fruit, which develops from the ovary wall, is called the:    a) Epicarp    b) Mesocarp    c) Endocarp    d) Pericarp    Answer: d) Pericarp  * In a fleshy fruit like a mango, the pericarp is differentiated into:    a) Epicarp and endocarp only.    b) Epicarp, mesocarp, and endocarp.    c) Mesocarp and endocarp only.    d) Just a single fleshy layer.    Answer: b) Epicarp, mesocarp, and endocarp.   * Which layer of the pericarp forms the "stone" or "pit" in a drupe fruit like a peach? ...
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