Read and download free pdf of CBSE Class 11 Biology Plant Growth And Development Worksheet Set B. Students and teachers of Class 11 Biology can get free printable Worksheets for Class 11 Biology Chapter 15 Plant Growth and Development in PDF format prepared as per the latest syllabus and examination pattern in your schools. Class 11 students should practice questions and answers given here for Biology in Class 11 which will help them to improve your knowledge of all important chapters and its topics. Students should also download free pdf of Class 11 Biology Worksheets prepared by school teachers as per the latest NCERT, CBSE, KVS books and syllabus issued this academic year and solve important problems with solutions on daily basis to get more score in school exams and tests
Worksheet for Class 11 Biology Chapter 15 Plant Growth and Development
Class 11 Biology students should refer to the following printable worksheet in Pdf for Chapter 15 Plant Growth and Development in Class 11. This test paper with questions and answers for Class 11 will be very useful for exams and help you to score good marks
Class 11 Biology Worksheet for Chapter 15 Plant Growth and Development
Plant Growth And Development MCQ Questions with Answers Class 11 Biology
Question. Examples of lateral meristems are
(1) Phellogen and collenchyma
(2) Vascular cambium and phellem
(3) Vascular cambium and cork cambium
(4) Xylem and cork cambium
Answer (3)
These are structures which appear later in the life of a plant.
Question. Which parameter is used to measure the growth in flat organs like leaves?
(1) Increase in dry weight
(2) Increase in cell size
(3) Increase in surface area
(4) Increase in length
Answer (3)
The parameter is used for measuring growth in flat organs like leaves are surface area.
Question. Which phase of a sigmoid curve explains the initial phase of growth when growth rate is very slow?
(1) Log phase
(2) Lag phase
(3) Stationary phase
(4) Maturation phase
Answer (2)
Starting or initial phase.
Question. ______ curve is obtained for cells in culture.
(1) J-shaped
(2) Linear
(3) V-shaped
(4) S-shaped
Answer (4)
Question. Which of the following is difficult to measure directly?
(1) Increase in protoplasm content
(2) Increase in surface area
(3) Increase in dry weight
(4) Increase in volume
Answer (1)
Increase in protoplasm content is difficult to measure, while surface area, volume and dry weight measurement are easy.
Question. Deposition of new materials inside the cell wall of cells starts in
(1) Meristematic phase
(2) Reproductive phase
(3) Maturation phase
(4) Elongation phase
Answer (4)
During this phase cell elongates due to deposition of new materials inside cell wall of cell.
Question. Plant growth is unique in being
(1) Closed
(2) Unlimited
(3) Diffuse
(4) Limited
Answer (2)
Plants show indeterminate or unlimited growth, throughout their, life. Hence, we say that plant growth is unique in being unlimited.
Question. Increase in the girth of plant is known as/done by
(1) Primary growth
(2) Apical meristem
(3) Intercalary meristem
(4) Secondary growth
Answer (4)
Increase in girth is secondary growth.
Increase in height is primary growth.
Question. Which of the following structures show unlimited growth in plants?
(1) Leaves
(2) Flowers
(3) Fruits
(4) Roots
Answer (4)
Roots, stems show continuous, indeterminate growth due to presence of apical meristem.Leaves, fruits, flowers show closed, determinate growth due to intercalary meristem.
Question. Growth of an organ is defined as
(1) Infinite increase in size
(2) Irreversible increase in size
(3) Reversible increase in size
(4) Infinite and reversible increase in size
Answer (2)
Organs show limited growth and growth is irreversible.
Question. Which type of cells have the capacity of self perpetuation?
(1) Meristematic cells
(2) Companion cells
(3) Sieve cells
(4) Parenchyma cells
Answer (1)
These cells are in state of continuous division i.e, they are capable of self perpetuation, have power to continue indefinitely through division.
Question. Tracheids do not collapse under extreme tension due to the presence of
(1) Strong, elastic lignocellulosic secondary cell wall
(2) Thick, cellulosic primary cell wall
(3) Thin, elastic, cellulosic primary cell wall
(4) Thick, hard suberised secondary cell wall
Answer (1)
Because tracheids have made themselves strong, elastic etc by process of differentiation i.e., specialised for particular function.
Question. Which factor determines the direction of movement of main root and stem?
(1) Oxygen
(2) Gravity
(3) Temperature
(4) Nutrients
Answer (2)
Root is positive geotropic while stem is negative geotropic.
Question. A Leaf of 20 cm2 grows 5 cm2 per hour and B Leaf of 25 cm2 grows 5 cm2 per hour The relative growth rate of leaf A and B respectively is
(1) 25% and 20%
(2) 20% and 25%
(3) 50% and 100%
(4) 25% and 50%
Answer (1)
Question. What happens to the growth of roots during water logging conditions?
(1) Growth is accelerated
(2) Growth is inhibited
(3) Growth remains constant
(4) First growth is accelerated and then stops
Answer (2)
Oxygen deficiency occurs due to water logging, thus growth is inhibited.
Question. Which of the following is not a function of water in plants?
(1) It is responsible for cell elongation
(2) It maintains the turgidity of cells
(3) It acts as a source of energy
(4) It provides medium for enzymatic activities
Answer (3)
It is not producing energy. It helps in maintaining turgidity, cell elongation and in enzymatic activities.
Question. Which abiotic factor is not essential for early growth of the plant but growth is sustained only in its presence?
(1) Water
(2) Oxygen
(3) Nutrients
(4) Light
Answer (4)
Abiotic means non-living. Light is not required for early growth but growth will continue only in its presence. Water, nutrients, oxygen are required for early growth.
Question. Cork, secondary cortex and secondary xylem are formed through
(1) Dedifferentiation
(2) Redifferentiation
(3) Differentiation
(4) Obliteration
Answer (2)
Cork, secondary cortex and secondary xylem all are secondary structure formed from dedifferentiated cell by redifferentiation and are responsible for secondary growth.
Question. Which of the following is formed after dedifferentiation?
(1) Secondary phloem
(2) Secondary cortex
(3) Parenchyma
(4) Interfascicular vascular cambium
Answer (4)
Question. Which type of phytohormone is made up of indole compounds?
(1) Zeatin
(2) ABA
(3) Auxin
(4) Gibberellins
Answer (3)
Indole 3-acetic acid - IAA
Indole butyric acid - IBA
Question. Two synthetic auxins are
(1) IAA and IBA
(2) 2, 4-D and NAA
(3) IAA and NAA
(4) 2, 4-D and IBA
Answer (2)
2, 4-D i.e., 2, 4-Dichlorophenoxyacetic acid NAA i.e., Napthalene acetic acid are produced artificially.
Question. Plant growth regulators (PGRs) are
(1) Simple organic substances of different chemical composition
(2) Complex organic substances of different chemical composition
(3) Simple and complex organic substances of same chemical composition
(4) Small organic substances of same chemical composition
Answer (1)
PGRs are simple organic substances of different chemical composition.
Question. The ability of a plant to follow different pathways and produce different structures in response to environment is known as
(1) Heterophylly
(2) Plasticity
(3) Efficiency index
(4) Vernalisation
Answer (2)
Question. Heterophylly means
(1) The appearance of different forms of leaves on the same plant species
(2) The appearance of same form of leaves on different plants
(3) The appearance of same form of flowers on different plants
(4) The appearance of different forms of fruits on the same plant
Answer (1)
More Question
SECTION -A
Q1. Why is plant growth generally indeterminate?
Q2. Define growth rate.
Q3. A farmer grows cucumber plants in his field. He wants to increase the number of female flowers in them which plant growth regulator can be applied to achieve this?
Q4. What does an overripe apple release which affects all other apples in the basket?
Q5. What part of plant perceives low temperature for vernalisation?
SECTION-B
Q1. Explain different phases of growth with the help of a diagram.
Q2. What is meant by the term development? Give sequence of the development process in a plant cell.
Q3. What is plasticity? Explain with an example.
Q4. What are auxins? Give important applications of auxins.
Q5. What is bolting?
SECTION-C
Q1. Describe briefly:
(i) Arithmetic growth
(ii) Geometric growth
(iii) Sigmoid growth
(iv) Absolute and relative growth rates.
Q2. What are gibberellins? Give their functions.
Q3. Explain what is meant by the terms differentiation, dedifferentiation and redifferentitation.
Q4. A Chrysanthemum plant with floral buds requires more than 12 hours of dark night-time to flower. If the night is interrupted by white light for duration of an hour, will the flowers bloom the following morning? Name the pigment that perceives the light stimulus for flowering. Where is the pigment present in that plant, and what are its two forms?
Q5. Why is the term ‘long day plants’ a misnomer? Explain briefly.
Q6. What do you understand by Vernalisation? Describe its significance.
Q7. Which one of the plant growth regulators would you use if you were asked to:
(a) Induce rooting in a twig.
(b) Quickly ripen a fruit.
(c) Delay leaf senescence.
(d) Induce growth in axillary buds.
(e) ‘bolt’ a rosette plant.
(f) Induce immediate stomatal closure in leaves.
SECTION-D
Q1. What is photoperiodism? How do you categorize the angiosperms on the basis of their flowering response to photoperiod?
CBSE Class 11 Biology The Living World Worksheet |
CBSE Class 11 Biology Biological Classification Worksheet |
CBSE Class 11 Biology Plant Kingdom Worksheet |
CBSE Class 11 Biology Animal Kingdom Worksheet |
CBSE Class 11 Biology Morphology of Flowering Plants Worksheet |
CBSE Class 11 Biology Anatomy of Flowering Plants Worksheet |
CBSE Class 11 Biology Structural Organisation In Animals Worksheet |
CBSE Class 11 Biology Cell The Unit Of Life Worksheet |
CBSE Class 11 Biology Biomolecule Worksheet |
CBSE Class 11 Biology Cell Cycle And Cell Division Worksheet Set A |
CBSE Class 11 Biology Cell Cycle And Cell Division Worksheet Set B |
CBSE Class 11 Biology Transport In Plants Worksheet |
CBSE Class 11 Biology Morphology Of Plants Worksheet |
CBSE Class 11 Biology Photosynthesis In Higher Plants Worksheet Set A |
CBSE Class 11 Biology Photosynthesis In Higher Plants Worksheet Set B |
CBSE Class 11 Biology Respiration In Plants Worksheet Set A |
CBSE Class 11 Biology Respiration In Plants Worksheet Set B |
CBSE Class 11 Biology Breathing And Exchange Of Gases Worksheet Set A |
CBSE Class 11 Biology Breathing And Exchange Of Gases Worksheet Set B |
CBSE Class 11 Biology Body Fluids And Circulation Worksheet |
CBSE Class 11 Biology Chemical Coordination And Integration Worksheet |
More Study Material
CBSE Class 11 Biology Chapter 15 Plant Growth and Development Worksheet
We hope students liked the above worksheet for Chapter 15 Plant Growth and Development designed as per the latest syllabus for Class 11 Biology released by CBSE. Students of Class 11 should download in Pdf format and practice the questions and solutions given in the above worksheet for Class 11 Biology on a daily basis. All the latest worksheets with answers have been developed for Biology by referring to the most important and regularly asked topics that the students should learn and practice to get better scores in their class tests and examinations. Studiestoday is the best portal for Class 11 students to get all the latest study material free of cost.
Worksheet for Biology CBSE Class 11 Chapter 15 Plant Growth and Development
Expert teachers of studiestoday have referred to the NCERT book for Class 11 Biology to develop the Biology Class 11 worksheet. If you download the practice worksheet for one chapter daily, you will get higher and better marks in Class 11 exams this year as you will have stronger concepts. Daily questions practice of Biology worksheet and its study material will help students to have a stronger understanding of all concepts and also make them experts on all scoring topics. You can easily download and save all revision worksheet for Class 11 Biology also from www.studiestoday.com without paying anything in Pdf format. After solving the questions given in the worksheet which have been developed as per the latest course books also refer to the NCERT solutions for Class 11 Biology designed by our teachers
Chapter 15 Plant Growth and Development worksheet Biology CBSE Class 11
All worksheets given above for Class 11 Biology have been made as per the latest syllabus and books issued for the current academic year. The students of Class 11 can be rest assured that the answers have been also provided by our teachers for all worksheet of Biology so that you are able to solve the questions and then compare your answers with the solutions provided by us. We have also provided a lot of MCQ questions for Class 11 Biology in the worksheet so that you can solve questions relating to all topics given in each chapter. All study material for Class 11 Biology students have been given on studiestoday.
Chapter 15 Plant Growth and Development CBSE Class 11 Biology Worksheet
Regular worksheet practice helps to gain more practice in solving questions to obtain a more comprehensive understanding of Chapter 15 Plant Growth and Development concepts. Worksheets play an important role in developing an understanding of Chapter 15 Plant Growth and Development in CBSE Class 11. Students can download and save or print all the worksheets, printable assignments, and practice sheets of the above chapter in Class 11 Biology in Pdf format from studiestoday. You can print or read them online on your computer or mobile or any other device. After solving these you should also refer to Class 11 Biology MCQ Test for the same chapter.
Worksheet for CBSE Biology Class 11 Chapter 15 Plant Growth and Development
CBSE Class 11 Biology best textbooks have been used for writing the problems given in the above worksheet. If you have tests coming up then you should revise all concepts relating to Chapter 15 Plant Growth and Development and then take out a print of the above worksheet and attempt all problems. We have also provided a lot of other Worksheets for Class 11 Biology which you can use to further make yourself better in Biology
You can download the CBSE Printable worksheets for Class 11 Biology Chapter 15 Plant Growth and Development for latest session from StudiesToday.com
Yes, you can click on the links above and download Printable worksheets in PDFs for Chapter 15 Plant Growth and Development Class 11 for Biology
Yes, the Printable worksheets issued for Class 11 Biology Chapter 15 Plant Growth and Development have been made available here for latest academic session
You can easily access the links above and download the Class 11 Printable worksheets Biology Chapter 15 Plant Growth and Development for each chapter
There is no charge for the Printable worksheets for Class 11 CBSE Biology Chapter 15 Plant Growth and Development you can download everything free
Regular revision of practice worksheets given on studiestoday for Class 11 subject Biology Chapter 15 Plant Growth and Development can help you to score better marks in exams
Yes, studiestoday.com provides all latest NCERT Chapter 15 Plant Growth and Development Class 11 Biology test sheets with answers based on the latest books for the current academic session
Yes, studiestoday provides worksheets in Pdf for Chapter 15 Plant Growth and Development Class 11 Biology in mobile-friendly format and can be accessed on smartphones and tablets.
Yes, worksheets for Chapter 15 Plant Growth and Development Class 11 Biology are available in multiple languages, including English, Hindi