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#stem modifications

17 public questions tagged with this topic.

Which of the following statements about stem modifications is correct?

Stolons are horizontal stems that grow along the soil surface, as seen in strawberry. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Morphology and Anatomy of Flowering Plants, Topic: Plant structure and tissue systems.

Which of the following statements about stem modifications is correct?

Tendrils in cucurbits, such as pumpkin, are modified stems that help in climbing. This follows from latest NCERT 2026-27 principle explaining the concept clearly for NEET students in simple steps as per rationalized syllabus.

Ref: NCERT Biology Textbook - Latest Edition for Academic Session 2026-27 (Botany section, Rationalized Textbook for Class XI and XII), Chapter: Biology - Botany portion (Latest NCERT Textbooks for Academic Session 2026-27 -

Which of the following statements about stem modifications is incorrect?

Thorns in citrus plants are modified stems, not roots, and they provide protection against herbivores. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Morphology and Anatomy of Flowering Plants, Topic: Plant structure and tissue systems.