11th Botany - Book Back Answers - Chapter 10 - English Medium Guides

 

 

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Tamil Nadu Board 11th Standard Botany - Chapter 10: Book Back Answers and Solutions

    This post covers the book back answers and solutions for Chapter 10 – Botany from the Tamil Nadu State Board 11th Standard Botany textbook. These detailed answers have been carefully prepared by our expert teachers at KalviTips.com.

    We have explained each answer in a simple, easy-to-understand format, highlighting important points step by step under the relevant subtopics. Students are advised to read and memorize these subtopics thoroughly. Once you understand the main concepts, you’ll be able to connect other related points with real-life examples and confidently present them in your tests and exams.

    By going through this material, you’ll gain a strong understanding of Botany Chapter 10 along with the corresponding book back questions and answers (PDF format).

Question Types Covered:

• 1 Mark Questions: Choose the correct answer, Fill in the blanks, Identify the correct statement, Match the following 
• 2 Mark Questions: Answer briefly 
• 3, 4, and 5 Mark Questions: Answer in detail

All answers are presented in a clear and student-friendly manner, focusing on key points to help you score full marks.

All the best, Class 11 students! Prepare well and aim for top scores. Thank you!

Chapter 10 : Secondary Growth

I. Multiple Choice Questions

1. Consider the following statements In spring season vascular cambium
i. is less active
ii. produces a large number of xylary elements
iii. forms vessels with wide cavities of these,
a. (i) is correct but (ii) and (iii) are not correct
b. (i) is not correct but (ii) and (iii) are correct
c. (i) and (ii) are correct but (iii) is not correct
d. (i) and (ii) are not correct but (iii) is correct.
Answer Key:
b. (i) is not correct but (ii) and (iii) are correct

2. Usually, the monocotyledons do not increase their girth, because
a. They possess actively dividing cambium
b. They do not possess actively dividing cambium
c. Ceases activity of cambium
d. All are correct
Answer Key:
b. They do not possess actively dividing cambium

3. In the diagram of lenticel identify the parts marked as i, ii, iii, iv

 

 

 

 

 

 

a. i. phellem,
     ii. Complementary tissue,
     iii. Phelloderm,
     iv. Phellogen.
b.   i. Complementary tissue,
      ii. Phellem,
      iii. Phellogen,
      iv. Phelloderm.
c.   i. Phellogen,
      ii. Phellem,
     iii. Phelloderm,
      iv. complementary tissue
d.   i. Phelloderm,
       ii. Phellem,
      iii. Complementary tissue,
      iv. Phellogen
Answer Key:
a. i. phellem,
     ii. Complementary tissue,
     iii. Phelloderm,
     iv. Phellogen.

4. What is the fate of primary xylem in a dicot stem showing extensive secondary growth?
a. It is retained in the centre of the axis
b. It gets crushed
c. May or may not get crushed
d. It gets surrounded by primary phloem
Answer Key:
b. It gets crushed

II. Short answer questions

aa

III. Long answer questions

a

IV. Exercise

a