What are the totiptent stem cells of plants ?

What are the totiptent stem cells of plants ?
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1 Answer

Answer :

: Totiptent stem is the type of cell from which it is possible to produce plant seedlings directly.
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Name the sub-aerial stem modification seen in free floating aquatic plants. How does it help in vegetative propagation?

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Last Answer : Ans: Off-set is the sub-aerial modified stem seen in free floating hydrophytes. It is brittle and has leaves and roots at its only node. When broken accidentally, it is separated from parent plant and can lead independent life.  

Stem tailed drill seen in which plant ?

Description : Stem tailed drill seen in which plant ?

Last Answer : : Stem tailed drill is found in bone marrow plants.

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Last Answer : Ans. ((d))

Aerosols having carbon and fluorine compounds are chiefly released by: (a) Refineries (b) Automobiles (c) Industries (d) Jets 3. Coir of commerce is obtained from: (a) Endocarp of coconut (b) Mesocarp of coconut (c) Stem of jute (d) Leaves of coconut

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Last Answer : Ans. ((d))

Stomata in bryophytes are present in the of: (a) Capsule (b) Leaf (c) Stem (d) Seta

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Last Answer : Ans. ((c))

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Description : The resin duct in Pinus stem represents a................ a)large vacuole b)intercellular space c)lysigenous cavity d)schizogenous cavity.

Last Answer : d)schizogenous cavity.

Sphenopteris hoeninghausii is the….. a)stem b)root c)leaves d)ovule

Description : Sphenopteris hoeninghausii is the….. a)stem b)root c)leaves d)ovule

Last Answer : c)leaves

Which aerial stem modification is concerned with vegetative propagation? Give two examples.

Description : Which aerial stem modification is concerned with vegetative propagation? Give two examples. 

Last Answer : Ans: Bulbils. Ex: Agave americana, Dioscoria bulbifera 

Which underground stem modification does not possess roots? Mention its scientific name.

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Last Answer : d) Potato

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Description : Onion and garlic are examples of a)Rhizome b) corm c) stem tuber d) bulb

Last Answer :  d) bulb

Tissue culture is a good technique to a) Cross two varieties b) Rapidly increase the size of a trees by strengthening the stem c) Eliminate virus d) Improve yield of crops

Description : Tissue culture is a good technique to a) Cross two varieties b) Rapidly increase the size of a trees by strengthening the stem c) Eliminate virus d) Improve yield of crops 

Last Answer : c) Eliminate virus 

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Description : Golgi apparatus is absent in (a) Higher plants (b) Yeast (c) Bacteria and blue-green algae (d) Liver cells

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What is the law of evaporation of water from plant cells ?

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Last Answer : Perspiration is the process by which water evaporates from a plant cell.

How many types of cells ?

Description : How many types of cells ?

Last Answer : There are two main types of cells based on the type of nucleus. Namely: (1) stem cell. (2) The actual cell.

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))

With reference to plant tissue culture select the matching pair: (1) Sterile triploid—banana and seedless fruit (2) Somaclonal variations—differences appearing (3) Embryoids—non-zygatic embryo produced from somatic cells (4) Pulses—belong to cruciferae

Description : With reference to plant tissue culture select the matching pair: (1) Sterile triploid—banana and seedless fruit (2) Somaclonal variations—differences appearing (3) Embryoids—non-zygatic embryo produced from somatic cells (4) Pulses—belong to cruciferae

Last Answer : Ans. ((a))

Nucleotide found free in the cells is: (a) CAMP (b) AMP (c) ADP (d) ATP

Description : Nucleotide found free in the cells is: (a) CAMP (b) AMP (c) ADP (d) ATP

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Retort cells are found in: (a) Funaria (b) Pogonatum (c) Sphagnum (d) Porella

Description : Retort cells are found in: (a) Funaria (b) Pogonatum (c) Sphagnum (d) Porella

Last Answer : Ans. ((c))

Abscission layer developed during leaf fall is made of: (a) Cork cells (b) Sclerenchymatous cells (c) Sclerenchymatous cells (d) Parenchymatous cells

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The specific characters of C4 plant is: (a) Bulliform cells (b) Kranz anatomy (c) Parallel venation (d) Isobilateral leaf

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Haploid cells belong to: (a) Integument, pollen grain, endosperm (b) Embryo, endosperm and pollen grain (c) Megaspore, pollen grain, antipodal (d) Integument, pollen grain and antipodal

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Last Answer : Ans. ((c))

Rod-shaped elongated thick-walled lignified dead cells found in seed coat of pulses (Legumes) are (a) Macrosciereids (b) Astrosclereids (c) Brachysclereids (d) Osteosclereids

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Tyloses are: (a) Lactiferous channels (b) Secretory cells (c) Sieve plates (d) Tracheal plugs plugging the lumen of vessels and tracheids

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In the secondary culture, cells are obtained from a. primary culture b. the organism c. organ culture d. phenotypic culture

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Callus is a. Tissue that forms embryo b. An insoluble carbohydrate c. Tissue that grows to form embryoid d. Unorganized actively dividing mass of cells maintained in cultured

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The living cells having thickening at the corners due to deposition of pectin are known as

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Last Answer : The living cells having thickening at the corners due to deposition of pectin are known as – Collenchyma cells.

When the diploid embryosac is formed from the cells of nucellus, it is known as

Description : When the diploid embryosac is formed from the cells of nucellus, it is known as

Last Answer : When the diploid embryosac is formed from the cells of nucellus, it is known as – Apospory

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Last Answer : When embryo arises directly from the (2n) sporophytic cells like nucellus or integuments it is called as – Adventive embryony

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Last Answer : When polyembryony is due to activation of some sporophytic cells of ovule, it is called as – Adventive polyembryony

Cells of aleurone layer function for

Description : Cells of aleurone layer function for

Last Answer : Cells of aleurone layer function for – hydrolyzing the food material of seeds

In cereals, the layer containing specialized cells filled with starch are called

Description : In cereals, the layer containing specialized cells filled with starch are called

Last Answer : In cereals, the layer containing specialized cells filled with starch are called – Aleuron layer

Whent the subsidiary or neighboring cells have a common origin with the guard cells such type of stomata ontogeny is called as –

Description : Whent the subsidiary or neighboring cells have a common origin with the guard cells such type of stomata ontogeny is called as –

Last Answer : Whent the subsidiary or neighboring cells have a common origin with the guard cells such type of stomata ontogeny is called as – Mesogenous development

In roots, mitotically and metabolically inactive cells that are positioned just behind the root cap are called as

Description : In roots, mitotically and metabolically inactive cells that are positioned just behind the root cap are called as

Last Answer :  In roots, mitotically and metabolically inactive cells that are positioned just behind the root cap are called as – Quiescent center

Differentiate laticiferous vessels and cells.

Description : Differentiate laticiferous vessels and cells.

Last Answer : Ans: laticiferous cell is smaller, less efficient and coenocyte. Laticiferous vessel is formed by the union of latex cells. It is more efficient and called as syncytium.

What are bulliform cells? What is their role?

Description : What are bulliform cells? What is their role?

Last Answer : Ans: Specialised larger epidermal cells seen in the upper epidermis of grass leaves which store water are called as bulliform cells or motor cells. They help in rolling and unrolling of lamina. 

What are the cells found in the egg apparatus of matured embryosac?

Description : What are the cells found in the egg apparatus of matured embryosac?  

Last Answer : Ans: Two synergids and one egg cell  

Who discovered living cells? Name the first discovered living organism

Description : Who discovered living cells? Name the first discovered living organism  

Last Answer : Ans: Leeuwenhoek, Bacteria 

What is the mechanism for motion in plants?

Description : What is the mechanism for motion in plants?

Last Answer : dude, I think this can be googled…. ;-P sorry if i sound like a smart alec….

What is the role of auxin in plants ?

Description : What is the role of auxin in plants ?

Last Answer : The role of auxin in plants is as follows : Prevents premature fall of fruit. Helps to produce seedless fruit. Auxin is also used for seed germination and weed control.

Why Artificial Organisms Are Reproduced in Non-Flowering Plants ?

Description : Why Artificial Organisms Are Reproduced in Non-Flowering Plants ?

Last Answer : As the sexual reproduction of non-flowering plants is not complete, artificial reproduction is done.

Why is the process of perspiration very important for plants ?

Description : Why is the process of perspiration very important for plants ?

Last Answer : As a result of perspiration, the plant gets rid of excess water pressure by expelling water from its body. Perspiration increases the concentration of juice in the cells. Increasing the ... maintains the moisture of the leaves. For this reason perspiration is very necessary for plants.

What do plants leave during photosynthesis ?

Description : What do plants leave during photosynthesis ?

Last Answer : Plants release oxygen during photosynthesis.

Teak plants are bred with the help of which ?

Description : Teak plants are bred with the help of which ?

Last Answer : Teak plants are propagated by roots.

How do plants absorb water through root hairs ?

Description : How do plants absorb water through root hairs ?

Last Answer : Answer : Plants absorb water through unicellular root hairs.

Which of the following works in photosynthesis of plants ?

Description : Which of the following works in photosynthesis of plants ?

Last Answer : Chlorophyll works in photosynthesis of plants.