Blog Log in Get Started Free

Growth and Development in Plants MCQs for NEET — Botany Questions with Answers

Practice free Growth and Development in Plants (Botany) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.

All Physics Chemistry Botany Zoology

Language English हिंदी

Chapter Difficulty Show only questions I answered incorrectly Clear Register free for difficulty & keyword filters

● ● ● ● ●

What is the process called when meristems/tissues formed through dedifferentiation divide and produce cells that once again lose the capacity to divide but mature to perform specific functions?

A. Differentiation B. Redifferentiation C. Dedifferentiation D. Senescence

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

Following dedifferentiation, the text describes: 'merge, such meristems/tissues are able to divide and produce cells that once again lose the capacity to divide but mature to perform specific functions, i.e., get redifferentiated.'

● ● ● ● ●

Why is differentiation in plants considered 'open'?

A. Because plants can grow indefinitely. B. Because cells/tissues arising from the same meristem can have different structures at maturity. C. Because plant growth occurs in open environments. D. Because plant cells can easily dedifferentiate and redifferentiate.

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

The NCERT text states: 'Now, we may say that even differentiation in plants is open, because cells/tissues arising out of the same meristem have different structures at maturity.'

● ● ● ● ●

The final structure at maturity of a cell/tissue in plants is determined by:

A. The initial size of the cell. B. The type of meristem from which it originated. C. The location of the cell within. D. The cell's ability to undergo senescence.

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

The text mentions: 'The final structure at maturity of a cell/tissue is also determined by the location of the cell within.'

● ● ● ● ●

Which of the following sequences correctly represents the developmental process in a plant cell?

A. Meristematic Cell â†’ Plasmatic growth â†’ Expansion â†’ Differentiation â†’ Maturation â†’ Mature Cell B. Meristematic Cell â†’ Differentiation â†’ Expansion â†’ Plasmatic growth â†’ Maturation â†’ Mature Cell C. Mature Cell â†’ Senescence â†’ Cell Division â†’ Differentiation D. Cell Division â†’ Plasmatic growth â†’ Expansion â†’ Maturation â†’ Differentiation â†’ Senescence

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

Figure 13.8, 'Sequence of the developmental process in a plant cell', clearly illustrates the pathway: MERISTEMATIC CELL â†’ Plasmatic growth â†’ Expansion (Elongation) â†’ Differentiation â†’ Maturation â†’ MATURE CELL.

● ● ● ● ●

Heterophylly, as observed in cotton, coriander, and larkspur, is an example of:

A. Open growth B. Determinate growth C. Plasticity D. Redifferentiation

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

The text states: 'Plants follow different pathways in response to environment or phases of life to form different kinds of structures. This ability is called plasticity, e.g., heterophylly in cotton, coriander and larkspur.'

● ● ● ● ●

Which of the following statements about tracheary elements is correct regarding their differentiation?

A. They retain their protoplasm to facilitate nutrient transport. B. They develop thin, cellulosic primary cell walls to aid flexibility. C. They undergo lignification to form strong secondary cell walls. D. They dedifferentiate to perform water transport functions.

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

The text states: 'During differentiation, cells undergo few to major structural changes both in their cell walls and protoplasm. For example, to form a tracheary element, the cells would lose their protoplasm. They also develop a very strong, elastic, lignocellulosic secondary cell walls...'

● ● ● ● ●

The process described as 'development is the sum of growth and differentiation' also highlights plant's ability to be flexible. This flexibility is termed:

A. Homeostasis B. Adaptation C. Plasticity D. Evolvability

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

The text integrates these concepts: 'Since differentiation in plants is open, the development could also be flexible, i.e., the development is the sum of growth and differentiation. Plant exhibit plasticity in development.'

● ● ● ● ●

Growth is primarily defined as an irreversible permanent increase in size. At a cellular level, this is principally a consequence of an increase in the amount of:

A. Cell wall material B. Vacuolar sap C. Protoplasm D. Intercellular space

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

According to the NCERT text, 'Growth, at a cellular level, is principally a consequence of increase in the amount of protoplasm.' (Chapter: PLANT_GROWTH_AND_DEVELOPMENT, Section 13.1.2).

● ● ● ● ●

Which of the following parameters is NOT explicitly mentioned in the NCERT text as a way to measure plant growth?

A. Increase in fresh weight B. Increase in number of cells C. Increase in turgor pressure D. Increase in volume

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

The NCERT text states: 'Growth is, therefore, measured by a variety of parameters some of which are: increase in fresh weight, dry weight, length, area, volume and cell number.' Turgor pressure, while related to growth, is not listed as a direct measurement parameter for growth in this section. (Chapter: PLANT_GROWTH_AND_DEVELOPMENT, Section 13.1.2).

● ● ● ● ●

A single maize root apical meristem can give rise to more than 17,500 new cells per hour. This primarily represents growth expressed as:

A. Increase in cell size B. Increase in cell number C. Increase in length D. Increase in volume

You've reached today's free limit of 20 questions. Log in to keep practising for free.

Explanation

The NCERT text explicitly states: 'In the former [maize root apical meristem], growth is expressed as increase in cell number...' (Chapter: PLANT_GROWTH_AND_DEVELOPMENT, Section 13.1.2).

Ready to ace NEET?

Free access · No credit card required

Browse All Questions Create Free Account

Frequently Asked Questions

Yes. You can attempt every Growth and Development in Plants question on this page for free without logging in, and check the correct answer with a detailed explanation instantly.

No account is required to attempt questions and view answers. A free account adds bookmarks, personal notes, and progress tracking.

The bank mixes NEET previous year questions (PYQs) with practice questions, each tagged with its exam appearances where applicable.