Apical cell theory best explains the development in

Apical cell theory best explains the development in
by

1 Answer

Answer :

Apical cell theory best explains the development in – Cryptogams
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Related questions

Tunica Carpus theory best explains the apical meristem of

Description : Tunica Carpus theory best explains the apical meristem of

Last Answer : Tunica Carpus theory best explains the apical meristem of - Angiosperms

To obtain haploid plants, we culture _________ e. Entire anther f. Nucleus g. Embryo h. Apical bud

Description : To obtain haploid plants, we culture _________ e. Entire anther f. Nucleus g. Embryo h. Apical bud

Last Answer : e. Entire anther

The Apical shoot meristem of Angiosperms consists of

Description : The Apical shoot meristem of Angiosperms consists of

Last Answer : The Apical shoot meristem of Angiosperms consists of – Tunica, Carpus and leaf primordium

Root apical meristem is best explained by

Description : Root apical meristem is best explained by

Last Answer : Root apical meristem is best explained by – Histogen theory

The term apical meristem refers to

Description : The term apical meristem refers to

Last Answer : The term apical meristem refers to- A group of meristematic cells at the apex of shoot and root

Write the characters of meristems and briefly write about apical meristems.

Description : Write the characters of meristems and briefly write about apical meristems. 

Last Answer : Ans: Characters of meristems: 1. Cells are small, isodiametric, cubical or polyhedral.  2. Cells are immature and young. 3. Intercellular spaces are absent 4. Cell wall is thin ... contribute for linear growth of the plant and produce the aerial other appendages. These are long lasting.  

Moll’s experiment explains that (a) Carbon dioxide is essential for photosynthesis (b) Chlorophyll and water are necessary for photosynthesis (c) Light and water are essential for photosynthesis (d) All of the above are correct

Description : Moll’s experiment explains that (a) Carbon dioxide is essential for photosynthesis (b) Chlorophyll and water are necessary for photosynthesis (c) Light and water are essential for photosynthesis (d) All of the above are correct

Last Answer : Ans. ((a))

In angiosperms regarding development of microgametophyte each microspore mother cell undergoes (a) Mitosis to produce 4 microspores (b) Two successive mitosis to form 4 microspores (c) Two successive meiotic division to form 4 microspores (d) Meiosis to produce 4 haploid microspores

Description : In angiosperms regarding development of microgametophyte each microspore mother cell undergoes (a) Mitosis to produce 4 microspores (b) Two successive mitosis to form 4 microspores (c) Two successive meiotic division to form 4 microspores (d) Meiosis to produce 4 haploid microspores

Last Answer : Ans. ((d))

Cholodny-Went theory is connected with: (1) Photo morphogenesis (2) Phototropism (3) Nastic movement (4) Geotropism

Description : Cholodny-Went theory is connected with: (1) Photo morphogenesis (2) Phototropism (3) Nastic movement (4) Geotropism

Last Answer : Ans. ((c))

Tunica carpus theory was given by

Description : Tunica carpus theory was given by

Last Answer : Tunica carpus theory was given by – Schmidt

Histogen theory was proposed by

Description : Histogen theory was proposed by 

Last Answer : Histogen theory was proposed by – Hanstein

Linnaeus is credited with introducing a) The concept of inheritance b) Law of limiting factor c) Theory of heredity d) Binomial nomenclature

Description : Linnaeus is credited with introducing a) The concept of inheritance b) Law of limiting factor c) Theory of heredity d) Binomial nomenclature

Last Answer : d) Binomial nomenclature 

Development of Sporophyte from gametophyte tissue without fusion of gametes is: (a) Apospory (b) Apogamy (c) Apomixis (d) Parthenogenesis

Description : Development of Sporophyte from gametophyte tissue without fusion of gametes is: (a) Apospory (b) Apogamy (c) Apomixis (d) Parthenogenesis

Last Answer : Ans. ((b))

Development of shoot and root is determined by: (a) Cytokinin and auxin ratio (b) Enzymes (c) Temperature (d) Plant nutrients

Description : Development of shoot and root is determined by: (a) Cytokinin and auxin ratio (b) Enzymes (c) Temperature (d) Plant nutrients

Last Answer : Ans. ((a))

Development of saprophyte from gametophyte, is called (a) Apomixis (b) Apospory (c) Apogamy (d) Dip1ospory

Description : Development of saprophyte from gametophyte, is called (a) Apomixis (b) Apospory (c) Apogamy (d) Dip1ospory

Last Answer : Ans. ((c))

Helobial development of endosperms is found in

Description : Helobial development of endosperms is found in

Last Answer : Helobial development of endosperms is found in – Monocots

The tissue which is involved in development of lateral roots is

Description : The tissue which is involved in development of lateral roots is

Last Answer : The tissue which is involved in development of lateral roots is – Pericycle

Development of lateral roots is

Description : Development of lateral roots is

Last Answer : Development of lateral roots is – Endogenous

The main function of NABARD is a) Farmers' loaning b) Agricultural research c) Refinancing to agricultural financing institutions d) Development of agriculture

Description : The main function of NABARD is a) Farmers' loaning b) Agricultural research c) Refinancing to agricultural financing institutions d) Development of agriculture

Last Answer : c) Refinancing to agricultural financing institutions 

what theory explains fear?

Description : what theory explains fear?

Last Answer : heliocentric theory, the theory of evolution, relativity theory

What theory explains how the era in which a person was born affects how they view the world?

Description : What theory explains how the era in which a person was born affects how they view the world?

Last Answer : It is Astrology.

What is the name of the theory that explains how forces deep within earth can cause ocean floors to spread and continents to move?

Description : What is the name of the theory that explains how forces deep within earth can cause ocean floors to spread and continents to move?

Last Answer : Theory of plate tectonics explains how forces deep within earth can cause ocean floors to spread and continents to move

Which theory explains the paramagnetic nature of oxygen ? Who proposed it ?

Description : Which theory explains the paramagnetic nature of oxygen ? Who proposed it ?

Last Answer : Molecular orbital theory, proposed by Hunds and Mulliken

Big Bang theory explains-------? A. Origin of Universe (Answer) B. Origin of Sun C. Laws of physics D. None of above

Description : Big Bang theory explains-------? A. Origin of Universe (Answer) B. Origin of Sun C. Laws of physics D. None of above

Last Answer : A. Origin of Universe (Answer)

The perspective that explains individual domestic violence as a result of direct observation of behavior and viewing of incidents in the media is the a. Social learning perspective. b. Frustration-aggression theory. c. Social exchange perspective. d. Political theory.

Description : The perspective that explains individual domestic violence as a result of direct observation of behavior and viewing of incidents in the media is the a. Social learning perspective. b. Frustration-aggression theory. c. Social exchange perspective. d. Political theory.

Last Answer : a. Social learning perspective.

Normative media theory explains how a media system should operate to realize____ (a) Economic goals (b) Political strategies (c) Ideal social values (d) Legal frameworks

Description : Normative media theory explains how a media system should operate to realize____ (a) Economic goals (b) Political strategies (c) Ideal social values (d) Legal frameworks

Last Answer : (c) Ideal social values

__________ explains the mechanism of catalysis. (A) Activated complex theory (B) Collision theory (C) Thermodynamics (D) None of these

Description : __________ explains the mechanism of catalysis. (A) Activated complex theory (B) Collision theory (C) Thermodynamics (D) None of these

Last Answer : (A) Activated complex theory

Which breakdown theory explains the action that takes place in a heavily doped PN-junction with a reverse bias of less than 5 volts?

Description : Which breakdown theory explains the action that takes place in a heavily doped PN-junction with a reverse bias of less than 5 volts?

Last Answer : Zener effect.

Why do cell walls absorb water ?

Description : Why do cell walls absorb water ?

Last Answer : Plant cell walls absorb water. Because in the case of plants the cell walls are colloidal substances. And different types of colloidal substances exist in plants. Such as starch , gelatin , cellulose etc. These substances are able to absorb water due to their colloidal properties.

In which process of plant protoplasm and cell wall absorbs water ?

Description : In which process of plant protoplasm and cell wall absorbs water ?

Last Answer : The plant absorbs water in the process of protoplasm and cell wall adsorption.

Which cell acts as a semi-permeable screen in a cell ?

Description : Which cell acts as a semi-permeable screen in a cell ?

Last Answer : Answer : The plasma membrane in a cell acts as a semipermeable membrane.

What is the cell wall made of ?

Description : What is the cell wall made of ?

Last Answer : The cell wall is made up of cellulose.

Which of the following are true archaebacteria? (1) Extreme halophiles (2) Extreme thermophyles (3) Methanogens (4) Presence of peptidoglycan cell wall Ans. (a) 43; Which of the following are endangered plants ? (1) Saintpaulia ionantha (2) Ceratozamia hildae (3) Punica granatum (4) Senecio hadrasomum

Description : Which of the following are true archaebacteria? (1) Extreme halophiles (2) Extreme thermophyles (3) Methanogens (4) Presence of peptidoglycan cell wall Ans. (a) 43; Which of the following are ... plants ? (1) Saintpaulia ionantha (2) Ceratozamia hildae (3) Punica granatum (4) Senecio hadrasomum

Last Answer : Ans. ((c))

Consider the following statement: (1) In plant cells, cytokinesis start with the formation of the phragmoplast (2) Phragmoplast comprises intrazonal microtubules and Golgi vesicles (3) Primary cell wall is produced by microtubules (4) Phragmoplast is formed by nucleus

Description : Consider the following statement: (1) In plant cells, cytokinesis start with the formation of the phragmoplast (2) Phragmoplast comprises intrazonal microtubules and Golgi vesicles (3) Primary cell wall is produced by microtubules (4) Phragmoplast is formed by nucleus

Last Answer : Ans. ((a))

Which of the following statement is correct? (1) The causal organism for foolish seedling disease is the source of gibberellin (2) Abscisic acid is a growth promoter (3) The ratio of auxin : cytokinin control cell differentiation (4) Bolting of cabbage can be induced by treatment with IAA

Description : Which of the following statement is correct? (1) The causal organism for foolish seedling disease is the source of gibberellin (2) Abscisic acid is a growth promoter (3) The ratio of auxin : cytokinin control cell differentiation (4) Bolting of cabbage can be induced by treatment with IAA

Last Answer : Ans. ((d))

Cell ‘A’ with O.P = 10 atm and T.P =5 atm is in contact with cell ‘B’ having O.P = 15 atm and T.P = 12 atm. The flow of water will be: (a) From A to B (b) Equal flow (c) From B to A (d) No flow

Description : Cell ‘A’ with O.P = 10 atm and T.P =5 atm is in contact with cell ‘B’ having O.P = 15 atm and T.P = 12 atm. The flow of water will be: (a) From A to B (b) Equal flow (c) From B to A (d) No flow

Last Answer : Ans. ((c))

Colchicines bring about: (a) Polyploidy (b) Cell division (c) Cell elongation (d) Cell differentiation

Description : Colchicines bring about: (a) Polyploidy (b) Cell division (c) Cell elongation (d) Cell differentiation

Last Answer : Ans. ((a))

The process by which the amount of DNA, RNA and protein can be known at a time is: (a) Cell fractionation (b) Autoradiography (c) Phase-contrast microscopy (d) Tissue culture

Description : The process by which the amount of DNA, RNA and protein can be known at a time is: (a) Cell fractionation (b) Autoradiography (c) Phase-contrast microscopy (d) Tissue culture

Last Answer : Ans. ((b))

Cell organelle covered by single unit membrane is: (a) Glyoxisome (b) Lysosome (c) Peroxisomes (d) All of these.

Description : Cell organelle covered by single unit membrane is: (a) Glyoxisome (b) Lysosome (c) Peroxisomes (d) All of these.

Last Answer : Ans. ((d))

The cell wall of both bacteria and cyanobactena contains: (a) Lipid (b) Pectin (c) Protein (d) muramic acid

Description : The cell wall of both bacteria and cyanobactena contains: (a) Lipid (b) Pectin (c) Protein (d) muramic acid

Last Answer : Ans. ((d))

If a sporangium derived from a single cell is called (a) Leptosporangiate (b) Eusporangiate (c) Heterosporangiate (d) None of the above

Description : If a sporangium derived from a single cell is called (a) Leptosporangiate (b) Eusporangiate (c) Heterosporangiate (d) None of the above

Last Answer : Ans. ((a))

In spite of several angiospermic features Gnetum is a gymnosperm because…. a) polyembryony is a common features b) prothallial cell is present in the male gametophyte c) seed is naked d) stem exhibit anomalous secondary growth

Description : In spite of several angiospermic features Gnetum is a gymnosperm because…. a) polyembryony is a common features b) prothallial cell is present in the male gametophyte c) seed is naked d) stem exhibit anomalous secondary growth

Last Answer : c) seed is naked

Cell sap is found inside a. Protoplasm b. Cytoplasm c. Nucleoplasm d. Vacuole

Description : Cell sap is found inside a. Protoplasm b. Cytoplasm c. Nucleoplasm d. Vacuole

Last Answer : d. Vacuole

When the embryo develops from haploid egg cell without fertilization, the phenomenon is called as

Description : When the embryo develops from haploid egg cell without fertilization, the phenomenon is called as

Last Answer : When the embryo develops from haploid egg cell without fertilization, the phenomenon is called as – Haploid parthenogenesis

When a diploid embryosac is formed from a megaspore mother cell without meiosis, it is called as

Description : When a diploid embryosac is formed from a megaspore mother cell without meiosis, it is called as

Last Answer : When a diploid embryosac is formed from a megaspore mother cell without meiosis, it is called as – Diplospory

During microsporogenesis, successive type of cell division is found in

Description : During microsporogenesis, successive type of cell division is found in

Last Answer : During microsporogenesis, successive type of cell division is found in – Monocots

Egg cell without synergids is found in embryosac of

Description : Egg cell without synergids is found in embryosac of

Last Answer : Egg cell without synergids is found in embryosac of – Plumbagella type

Describe the cell organelle which is responsible for the synthesis of starch.

Description : Describe the cell organelle which is responsible for the synthesis of starch. 

Last Answer : The cell organelle responsible for the formation of starch is Chloroplast. It was discovered by Sachs and named by Schimper. It is usually disc shaped or Biconvex or Oval or spherical.   ... granum and the unstacked thylakoids that connect the adjacent grana are called as Stroma thylakoids.  

With the help of labeled diagram give an account of the cell organelle which is generally referred as Cell brain.

Description : With the help of labeled diagram give an account of the cell organelle which is generally referred as Cell brain.

Last Answer : Ans: Nucleus is the controlling centre of the cell that consists of chromosomes. Structurally it has four parts known as Nuclear envelope, Nucleoplasm, Nucleolus and Chromatin.   Nuclear ... chromosome at secondary constriction. It also disappears in Prophase and reappears in telophase.   

Give an account on suicidal bags of the cell.

Description : Give an account on suicidal bags of the cell. 

Last Answer : Ans: These are Lysosomes. They have single unit membrane and formed from E.R. and Golgi complex. These were discovered by de Duve. They are rich in hydrolytic enzymes and play a role in digestion. ... lysosomes can destroy the contents of the same cell they are called as Suicidal bags of the cell.