Tamil Nadu Board of Secondary EducationHSC Science Class 11th
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Tamil Nadu Board Samacheer Kalvi solutions for Class 11th Botany Answers Guide chapter 15 - Plant Growth and Development [Latest edition]

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Class 11th Botany Answers Guide - Shaalaa.com
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Chapter 15: Plant Growth and Development

Evaluation
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Evaluation [Page 204]

Tamil Nadu Board Samacheer Kalvi solutions for Class 11th Botany Answers Guide Chapter 15 Plant Growth and DevelopmentEvaluation [Page 204]

Evaluation | Q 1. | Page 204

Select the wrong statement from the following:

  • Formative phase of the cells retain the capability of cell division.

  • In elongation phase development of central vacuole takes place.

  • In maturation phase thickening and differentiation takes place.

  • In maturation phase, the cells grow further.

Evaluation | Q 2. | Page 204

If the diameter of the pulley is 6 inches, length of pointer is 10 inches and distance travelled by pointer is 5 inches. Calculate the actual growth in length of plant.

  • 1.5 inches

  • 6 inches

  • 12 inches

  • 30 inches

Evaluation | Q 3. | Page 204

In unisexual plants, sex can be changed by the application of ____________.

  • Ethanol

  • Cytokinins

  • ABA

  • Auxin

Evaluation | Q 4. | Page 204

Select the correctly matched one.

A) Human urine i) Auxin –B
B) Corn gram oil ii) GA3
C) Fungus iii) Abscisic acid II
D) Herring fish sperm iv) Kinitin
E) Unripe maize grains v) Auxin A
F) Young cotton bolls vi) Zeatin
  • A - iii, B - iv, C - v, D - vi, E - i, F - ii

  • A - v, B - i, C - ii, D - iv, E - vi, F - iii

  • A - iii, B - v, C - vi, D - i, E - ii, F - iv

  • A - ii, B - iii, C - v, D - vi, E - iv, F - i

Evaluation | Q 5. | Page 204

Seed dormancy allows the plants to ______.

  • overcome unfavourable climatic conditions

  • develop healthy seeds

  • reduce viability

  • prevent deterioration of seeds

Evaluation | Q 6. | Page 204

Which one of the following method are used to break the seed dormancy?

  • Scarification

  • Impaction

  • Stratification

  • All the above.

Evaluation | Q 7. | Page 204

What are the parameters used to measure growth of plants?

Evaluation | Q 8. | Page 204

What is plasticity?

Evaluation | Q 9. | Page 204

Write the physiological effects of Cytokinins.

Evaluation | Q 10. | Page 204

Describe the mechanism of photoperiodic induction of flowering.

Evaluation | Q 11. | Page 204

Give a brief account on Programmed Cell Death (PCD).

Evaluation | Q 12. | Page 204

What are the physiological effects of plants facing drought conditions?

Evaluation | Q 13. | Page 204

Explain the mechanism of biotic stress.

Chapter 15: Plant Growth and Development

Evaluation
Class 11th Botany Answers Guide - Shaalaa.com

Tamil Nadu Board Samacheer Kalvi solutions for Class 11th Botany Answers Guide chapter 15 - Plant Growth and Development

Tamil Nadu Board Samacheer Kalvi solutions for Class 11th Botany Answers Guide chapter 15 (Plant Growth and Development) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the Tamil Nadu Board of Secondary Education Class 11th Botany Answers Guide solutions in a manner that help students grasp basic concepts better and faster.

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Concepts covered in Class 11th Botany Answers Guide chapter 15 Plant Growth and Development are Characteristics of Growth Regulators, Plant Growth Regulators, Plant Movements, Photoperiodism, Vernalization (Vernal – Spring Like), Seed Germination and Dormancy, Senescence, Stress Physiology.

Using Tamil Nadu Board Samacheer Kalvi Class 11th solutions Plant Growth and Development exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Tamil Nadu Board Samacheer Kalvi Solutions are important questions that can be asked in the final exam. Maximum students of Tamil Nadu Board of Secondary Education Class 11th prefer Tamil Nadu Board Samacheer Kalvi Textbook Solutions to score more in exam.

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