Finf the Fsc part 2 online preparation for biology chapter 19 (Growth and Development)

Online Short Questions For Chapter 5 "12th Class Biology Chapter 19 Short Questions Preparation "

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Biology - 12th Class Biology Chapter 19 Short Questions Preparation

Question # 1

What are apical meristems?

Ans 1: These are the cells which are capable of cell division and are involved in the primary growth of plants.

Question # 2

Define Regeneration.Give one example.

Ans 1: The ability to regain or recover the lost part or injured part of the body is called regeneration.For Example if lobster loses its pincer claw a new claw regenerates.

Question # 3

Define apical and intercalary meristem.

Ans 1: Apical meristem: Apical meristem found at the tips of shoot and root. The cells of apical meristem has ability to divide throughout plant life. These are basically related to extension of plant body.
Ans 2: Intercalary meristem: These are the part of apical meristem which get separated from apex by permanent tissues. They are situated at the base of internode. They play important role in production of leaves and flowers.

Question # 4

Name the phase of plants growth.

Ans 1: Phases of plants growth are:
i) Phase of cell division ii) Phase of elongation iii) Phase of maturation iv) Phase of differention.

Question # 5

Differentiate between primary organizer and primary induction.

Ans 1: Primary organizer: The area of the dorsal lip which induces the development of secondary embryo in the host is called primary organizer.
Ans 2: Primary induction: The ability of the primary organizer to induce the growth of secondary embryo in host is called primary induction

Question # 6

Write practical application of apical dominance.

Ans 1: It can be used to produce smooth woody stem.
It is also used to increase the storage life of potato from 1 to 3 years.

Question # 7

How are opaca differs from area pellucida?

Ans 1: Area pellucida: Central cells of blastoderm can be separated from yolk and giving the area of translucent appearance called Area pellucida.
Area opaca: The peripheral part of balstderm where the cells are unseparated from the yolk is called area opaca.

Question # 8

What is growth? Mentions its types.

Ans 1: Increase in size of an organism is called growth. It has two types
Ans 2: 1) open growth 2) Closed growth.

Question # 9

What are metabolic defects and give two example?

Ans 1: Bones are malformed and one organ or its part is missing or it may be repeated.

Question # 10

Differentiate between apical meristem and lateral meristem.

Ans 1: Apical meristem:Apical meristem found at the tips of shoot and root.The cells of apical meristem has ability to divide throughout plant life,These are basically related to extension of plant body.
Ans 2: Lateral meristem:Lateral meristem are cylinder of dividing cells. They are present in dicots and gymnosperms. Vascular cambium and cork cambium are example of lateral meristem. They increase the diameter of root and stem.

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Prepare Complete Set Wise Questions For Chapter 5 "12th Class Biology Chapter 19 Short Questions Preparation "

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12th Class Biology Chapter 19 Short Questions Preparation - Set 1

Question # 1

What are apical meristems?

Ans 1: These are the cells which are capable of cell division and are involved in the primary growth of plants.

Question # 2

Define Regeneration.Give one example.

Ans 1: The ability to regain or recover the lost part or injured part of the body is called regeneration.For Example if lobster loses its pincer claw a new claw regenerates.

Question # 3

Define apical and intercalary meristem.

Ans 1: Apical meristem: Apical meristem found at the tips of shoot and root. The cells of apical meristem has ability to divide throughout plant life. These are basically related to extension of plant body.
Ans 2: Intercalary meristem: These are the part of apical meristem which get separated from apex by permanent tissues. They are situated at the base of internode. They play important role in production of leaves and flowers.

Question # 4

Name the phase of plants growth.

Ans 1: Phases of plants growth are:
i) Phase of cell division ii) Phase of elongation iii) Phase of maturation iv) Phase of differention.

Question # 5

Differentiate between primary organizer and primary induction.

Ans 1: Primary organizer: The area of the dorsal lip which induces the development of secondary embryo in the host is called primary organizer.
Ans 2: Primary induction: The ability of the primary organizer to induce the growth of secondary embryo in host is called primary induction

Question # 6

Write practical application of apical dominance.

Ans 1: It can be used to produce smooth woody stem.
It is also used to increase the storage life of potato from 1 to 3 years.

Question # 7

How are opaca differs from area pellucida?

Ans 1: Area pellucida: Central cells of blastoderm can be separated from yolk and giving the area of translucent appearance called Area pellucida.
Area opaca: The peripheral part of balstderm where the cells are unseparated from the yolk is called area opaca.

Question # 8

What is growth? Mentions its types.

Ans 1: Increase in size of an organism is called growth. It has two types
Ans 2: 1) open growth 2) Closed growth.

Question # 9

What are metabolic defects and give two example?

Ans 1: Bones are malformed and one organ or its part is missing or it may be repeated.

Question # 10

Differentiate between apical meristem and lateral meristem.

Ans 1: Apical meristem:Apical meristem found at the tips of shoot and root.The cells of apical meristem has ability to divide throughout plant life,These are basically related to extension of plant body.
Ans 2: Lateral meristem:Lateral meristem are cylinder of dividing cells. They are present in dicots and gymnosperms. Vascular cambium and cork cambium are example of lateral meristem. They increase the diameter of root and stem.

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12th Class Biology Chapter 19 Short Questions Preparation - Set 2

Question # 1

What are apical meristems?

Ans 1: These are the cells which are capable of cell division and are involved in the primary growth of plants.

Question # 2

Differentiate between apical meristem and lateral meristem.

Ans 1: Apical meristem:Apical meristem found at the tips of shoot and root.The cells of apical meristem has ability to divide throughout plant life,These are basically related to extension of plant body.
Ans 2: Lateral meristem:Lateral meristem are cylinder of dividing cells. They are present in dicots and gymnosperms. Vascular cambium and cork cambium are example of lateral meristem. They increase the diameter of root and stem.

Question # 3

What role is played by clear cytoplasm and yellow cytoplasm in animal development?

Ans 1: Clear cytoplasm produces larval epidermis and yellow cytoplasm produces muscle cells.

Question # 4

What is difference between inhibitory effect and compensatory effect?

Ans 1: Inhibitory effect: Auxin diffuses from apical buds to the lateral buds or branches which inhibit the growth of lateral shoots is called inhibitory.
Compensatory effect: When the apex is cut and diffusion of auxin is stopped to the lateral buds it releases the lateral buds from apical dominance is called compensatory effect.

Question # 5

How aging can be slow down?

Ans 1: Aging can be slow down by
i) Taking regular exercise ii) By taking balanced diet iii) Avoiding smoking and alcohol.

Question # 6

What is open growth? Discuss.

Ans 1: Plants have growth pattern called open growth which means throughout life plants add new organs such as branches,leaves and roots, enlarging from the tip of roots and shoots.

Question # 7

Differentiate between epiblast and hypoblast.

Ans 1: Epiblast: During gastrulation blastoderm splits into two layers,an upper layers of cells is called epiblast.
Hypoblast: Lower layer of cells is called hypoblast.

Question # 8

Define teratology and teratogens.

Ans 1: Study of abnormal development is called teratology. Factors causing abnormal development are called teratogens.

Question # 9

Differentiate between primary growth and secondary growth in plant.

Ans 1: Primary growth: occur due to the activity of apical meristem which results increase in length or height of plant.
Ans 2: Secondary growth: Of plants occur due to activity of cambium and it results increase in girth of plant.

Question # 10

Define Growth correlations.

Ans 1: Development of plant is usually correlated with its growth and different organs grow at different rates in different directions and the development of different parts takes place.This is called growth correlation.

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12th Class Biology Chapter 19 Short Questions Preparation - Set 3

Question # 1

What is open growth? Discuss.

Ans 1: Plants have growth pattern called open growth which means throughout life plants add new organs such as branches,leaves and roots, enlarging from the tip of roots and shoots.

Question # 2

Differentiate between primary growth and secondary growth in plant.

Ans 1: Primary growth: occur due to the activity of apical meristem which results increase in length or height of plant.
Ans 2: Secondary growth: Of plants occur due to activity of cambium and it results increase in girth of plant.

Question # 3

Name the phase of plants growth.

Ans 1: Phases of plants growth are:
i) Phase of cell division ii) Phase of elongation iii) Phase of maturation iv) Phase of differention.

Question # 4

Define Apical Dominance.Give its cause.

Ans 1: In many plant species only apical bud grows while growth of lower axillary buds is inhibited this process is called apical dominance.

Question # 5

Differentiate maturation from differentiation.

Ans 1: Maturation:During maturation,the final size of a given type of a cell is attained.The cells which develop into pith,cortex and certain other tissues do not elongate further.
Ans 2: Differentiation:When the cell enlargement ceases,the process of differentiation starts.Wall of cells become pitted,thickening appear on the walls of xylem vessels etc.

Question # 6

What role is played by clear cytoplasm and yellow cytoplasm in animal development?

Ans 1: Clear cytoplasm produces larval epidermis and yellow cytoplasm produces muscle cells.

Question # 7

What is ceolom?

Ans 1: Coelome is called body cavity. It is formed by the splitting of mesoderm into somatic mesoderm and splanchnic mesoderm.

Question # 8

What is regeneration?

Ans 1: Formation of lost parts of the body is called regeneration. For example if arm of star fish is cut, it will be regenerated or reformed.

Question # 9

What is compensatory effect?

Ans 1: The removal of apex from the apical tip release the lateral buds from the apical dominance,it is called compensatory effect.

Question # 10

Differentiate between apical meristem and lateral meristem.

Ans 1: Apical meristem:Apical meristem found at the tips of shoot and root.The cells of apical meristem has ability to divide throughout plant life,These are basically related to extension of plant body.
Ans 2: Lateral meristem:Lateral meristem are cylinder of dividing cells. They are present in dicots and gymnosperms. Vascular cambium and cork cambium are example of lateral meristem. They increase the diameter of root and stem.

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12th Class Biology Chapter 19 Short Questions Preparation - Set 4

Question # 1

What is morula?

Ans 1: After fertilization of egg it divides repeatedly by mitotic division resulting in a ball of cells called morula

Question # 2

Define Gerontology.

Ans 1: Gerontology is the study of aging. It also deals with the causes of aging and measures by which aging can be slowed.

Question # 3

Define blastocoel and neurocoel.

Ans 1: At blastula stage there is a segmentation cavity formed called blastocoel which is formed by the separation of cell.
Ans 2: With the formation of neural tube,there is the formation of CNS and a cavity enclosed is known as neurocoel.

Question # 4

Name the phase of plants growth.

Ans 1: Phases of plants growth are:
i) Phase of cell division ii) Phase of elongation iii) Phase of maturation iv) Phase of differention.

Question # 5

Differentiate between growth and development.

Ans 1: Growth:In in size of an organism is called growth.It is an irreversible change.
Ans 2: Development:Different changes occur during the life of an organism is called development.

Question # 6

Differentiate between primary organizer and primary induction.

Ans 1: Primary organizer: The area of the dorsal lip which induces the development of secondary embryo in the host is called primary organizer.
Ans 2: Primary induction: The ability of the primary organizer to induce the growth of secondary embryo in host is called primary induction

Question # 7

What is blastoderm?

Ans 1: The discoidal cap of cells above the blastocoel is called blastoderm.

Question # 8

Give to role of cytoplasm in the development of an Ascidian.

Ans 1: For types of cytoplasm in Ascidian are
i) Clear cytoplasm produces larval epidermis
Ans 2: ii) Yellow cytoplasm produces muscle cell.
Ans 3: iii) Grey vegetal cytoplasm gives rise to gut
Ans 4: iv) Grey equitorial cytoplasm produce notochord and neural tube.

Question # 9

Differentiate between neurula and neurocoel.

Ans 1: Neurula: In the embryo of 24 hrs the neural folds are clearly visible,at this stage embryo is called neurula.
Ans 2: Neurocoel: In the chick development with the formation of neural tube,there is formation of central nervous system and the cavity enclosed is called neurocoel.

Question # 10

Explain embryonic induction.

Ans 1: Capacity of some cells to induce a specific developmental response in other cells is wide spread phenomena,this is called embryonic induction.

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12th Class Biology Chapter 19 Short Questions

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Fsc part 2 online preparation for biology chapter 19 (Growth and Development)

Online Short Questions For Chapter 5 "12th Class Biology Chapter 19 Short Questions Preparation "

Biology - 12th Class Biology Chapter 19 Short Questions Preparation

What are apical meristems?

Define Regeneration.Give one example.

Define apical and intercalary meristem.

Name the phase of plants growth.

Differentiate between primary organizer and primary induction.

Write practical application of apical dominance.

How are opaca differs from area pellucida?

What is growth? Mentions its types.

What are metabolic defects and give two example?

Differentiate between apical meristem and lateral meristem.

Prepare Complete Set Wise Questions For Chapter 5 "12th Class Biology Chapter 19 Short Questions Preparation "

Set 1

Set 2

Set 3

Set 4

12th Class Biology Chapter 19 Short Questions Preparation - Set 1

What are apical meristems?

Define Regeneration.Give one example.

Define apical and intercalary meristem.

Name the phase of plants growth.

Differentiate between primary organizer and primary induction.

Write practical application of apical dominance.

How are opaca differs from area pellucida?

What is growth? Mentions its types.

What are metabolic defects and give two example?

Differentiate between apical meristem and lateral meristem.

12th Class Biology Chapter 19 Short Questions Preparation - Set 2

What are apical meristems?

Differentiate between apical meristem and lateral meristem.

What role is played by clear cytoplasm and yellow cytoplasm in animal development?

What is difference between inhibitory effect and compensatory effect?

How aging can be slow down?

What is open growth? Discuss.

Differentiate between epiblast and hypoblast.

Define teratology and teratogens.

Differentiate between primary growth and secondary growth in plant.

Define Growth correlations.

12th Class Biology Chapter 19 Short Questions Preparation - Set 3

What is open growth? Discuss.

Differentiate between primary growth and secondary growth in plant.

Name the phase of plants growth.

Define Apical Dominance.Give its cause.

Differentiate maturation from differentiation.

What role is played by clear cytoplasm and yellow cytoplasm in animal development?

What is ceolom?

What is regeneration?

What is compensatory effect?

Differentiate between apical meristem and lateral meristem.

12th Class Biology Chapter 19 Short Questions Preparation - Set 4

What is morula?

Define Gerontology.

Define blastocoel and neurocoel.

Name the phase of plants growth.

Differentiate between growth and development.

Differentiate between primary organizer and primary induction.

What is blastoderm?

Give to role of cytoplasm in the development of an Ascidian.

Differentiate between neurula and neurocoel.

Explain embryonic induction.

12th Class Biology Chapter 19 Short Questions

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