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 "

Try The Short Questions For 12th Class Biology Chapter 19 Short Questions Preparation

Total Questions10
Available Sets4

Start Test Download PDF

Biology - 12th Class Biology Chapter 19 Short Questions Preparation

Question # 1

Name two layers of lateral plates of mesoderm.

Ans 1: The lateral plate of mesoderm splits into two layers named as somatic mesoderm and splanchnic mesoderm.

Question # 2

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 # 3

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 # 4

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 # 5

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 # 6

What are neoblasts and their role? Or What are neoblasts?

Ans 1: Neablasts are unspecialized cells which are always present in the body of adult and are mobilized to the site of ampuation,where they are differentiated into specialized cells.

Question # 7

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 # 8

Define teratology and teratogens.

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

Question # 9

What is cleavage?

Ans 1: Immidiately after fertilization, egg undergoes a series of mitotic division called cleavage.

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.

Submit

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

Set 1

10 Questions
Start
Set 2

10 Questions
Start
Set 3

10 Questions
Start
Set 4

10 Questions
Start

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

Question # 1

Name two layers of lateral plates of mesoderm.

Ans 1: The lateral plate of mesoderm splits into two layers named as somatic mesoderm and splanchnic mesoderm.

Question # 2

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 # 3

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 # 4

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 # 5

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 # 6

What are neoblasts and their role? Or What are neoblasts?

Ans 1: Neablasts are unspecialized cells which are always present in the body of adult and are mobilized to the site of ampuation,where they are differentiated into specialized cells.

Question # 7

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 # 8

Define teratology and teratogens.

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

Question # 9

What is cleavage?

Ans 1: Immidiately after fertilization, egg undergoes a series of mitotic division called cleavage.

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.

Submit

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

Question # 1

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 # 2

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 # 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

How neural plate is formed?

Ans 1: on the dorasal surface of the gastrula,over the notochord,presumptive neural ectoderm is present in the form of band. As gastrula elongates,the band thickens to from a neural plate.

Question # 5

What are the internal factors which affect the process of growth?

Ans 1: internal factors which are involved in plant growth are hormones,water ,nutrition,vitamins.

Question # 6

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 # 7

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 # 8

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 # 9

Define aging? Write its two signs.

Ans 1: Negative physiological changes in an organism are called aging. Its two symptoms are:
Wrinkled skin and grey hairs.

Question # 10

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.

Submit

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

Question # 1

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 # 2

What is morula?

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

Question # 3

Differentiate between determinate and indeterminate growth.

Ans 1: Determinate growth: in higher plants growth occur at certain points called meristem and whole body do not grow in different planes such a growth is called determinate growth.
Ans 2: Indeterminate growth: in lower plants whole body is capable of growth and which produced an irregular body of plant. Such a growth is called indeterminate growth.

Question # 4

What is blastoderm?

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

Question # 5

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 # 6

What is primitive streak?

Ans 1: In the chick the mesodermal cells do not invaginate but migrate medially and caudally from both sides and create a mid line thickening called primitive streak.

Question # 7

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 # 8

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 # 9

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.

Question # 10

Name two layers of lateral plates of mesoderm.

Ans 1: The lateral plate of mesoderm splits into two layers named as somatic mesoderm and splanchnic mesoderm.

Submit

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

Question # 1

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.

Question # 2

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 # 3

What is blastoderm?

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

Question # 4

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 # 5

How do quantity and quality of light effect plant growth?

Ans 1: Light plays important role in the growth of plants:
Quality of light: The red light favors elongation of cells and blue light enhances cell division but retards cell enlargement. Similarly ultraviolet rays also retard cell elongation.
Quantity of light:Duration of light affects the growth vegetative & reproductive structures. It also plays a role in inducing or suppressing flowering. The phenomenon is termed as photoperiodism.

Question # 6

Differentiate between growth and embryonic development.

Ans 1: Growth:Growth is the permanent and irreversible increase in size that occurs as an organism matures.
Ans 2: Embryonic development:The progressive changes which are undergone before an organism acquires in adult from constitute embryonic development.

Question # 7

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 # 8

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 # 9

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 # 10

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.

Submit

Biology

19th Chapter

12th Class Biology Chapter 19 Short Questions

Here you can prepare 12th Class Biology Chapter 19 (Growth and Development). Click the button for 100% free full practice.

Start Chapter 19 Preparation

Chapter 15

Chapter 16

Chapter 17

Chapter 18

Chapter 19

Chapter 20

Chapter 21

Chapter 22

Chapter 23

Chapter 24

Chapter 25

Chapter 26

Short Questions
FSc

Latest Educational News Stories

Pakistan's Largest Database of Colleges and Universities

BS Programs

University Past Papers

University Results

Exam Results 2024

Study Abroad Programs and Opportunities for Pakistani Students

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

Name two layers of lateral plates of mesoderm.

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

Differentiate between epiblast and hypoblast.

Differentiate between primary organizer and primary induction.

What are apical meristems?

What are neoblasts and their role? Or What are neoblasts?

Define Gerontology.

Define teratology and teratogens.

What is cleavage?

Explain embryonic induction.

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

Name two layers of lateral plates of mesoderm.

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

Differentiate between epiblast and hypoblast.

Differentiate between primary organizer and primary induction.

What are apical meristems?

What are neoblasts and their role? Or What are neoblasts?

Define Gerontology.

Define teratology and teratogens.

What is cleavage?

Explain embryonic induction.

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

What is ceolom?

What is open growth? Discuss.

Name the phase of plants growth.

How neural plate is formed?

What are the internal factors which affect the process of growth?

What is growth? Mentions its types.

What is difference between inhibitory effect and compensatory effect?

How aging can be slow down?

Define aging? Write its two signs.

Differentiate between neurula and neurocoel.

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

Define Gerontology.

What is morula?

Differentiate between determinate and indeterminate growth.

What is blastoderm?

What is regeneration?

What is primitive streak?

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

Differentiate between neurula and neurocoel.

Explain embryonic induction.

Name two layers of lateral plates of mesoderm.

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

Explain embryonic induction.

Name the phase of plants growth.

What is blastoderm?

What is ceolom?

How do quantity and quality of light effect plant growth?

Differentiate between growth and embryonic development.

What are metabolic defects and give two example?

What are apical meristems?

Define Apical Dominance.Give its cause.

How are opaca differs from area pellucida?

12th Class Biology Chapter 19 Short Questions

Is this page helpful?