Description : The plant body is thalloid in (a) Sphagnum (b) Salvinia (c) Marchantia (d) Funaria.
Last Answer : (c) Marchantia
Description : Which of the following is responsible for peat formation? (a) Marchantia (b) Riccia (c) Funaria (d) Sphagnum
Last Answer : (d) Sphagnum
Description : Nucleotide found free in the cells is: (a) CAMP (b) AMP (c) ADP (d) ATP
Last Answer : Ans. ((d))
Description : Rod-shaped elongated thick-walled lignified dead cells found in seed coat of pulses (Legumes) are (a) Macrosciereids (b) Astrosclereids (c) Brachysclereids (d) Osteosclereids
Last Answer : Ans. ((a))
Description : What are the cells found in the egg apparatus of matured embryosac?
Last Answer : Ans: Two synergids and one egg cell
Description : Economic importance of sphagnum? -Biology
Last Answer : answer:
Description : Sphagnum moss life cycle. -Biology
Description : What are the adaptations of sphagnum moss to the taiga?
Last Answer : Need answer
Description : Is sphagnum a vascular plant?
Description : .Male and female gametophytes are independent and free-living in (a) mustard (b) castor (c) Pinus (d) Sphagnum.
Last Answer : (d) Sphagnum.
Description : Dichotomous branching is found in (a) liverworts (b) pteridophytes (c) fern (d) Funaria.
Last Answer : (a) liverworts
Description : What is the law of evaporation of water from plant cells ?
Last Answer : Perspiration is the process by which water evaporates from a plant cell.
Description : What are the totiptent stem cells of plants ?
Last Answer : : Totiptent stem is the type of cell from which it is possible to produce plant seedlings directly.
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.
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
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
Description : Abscission layer developed during leaf fall is made of: (a) Cork cells (b) Sclerenchymatous cells (c) Sclerenchymatous cells (d) Parenchymatous cells
Description : The specific characters of C4 plant is: (a) Bulliform cells (b) Kranz anatomy (c) Parallel venation (d) Isobilateral leaf
Last Answer : Ans. ((b))
Description : 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
Last Answer : Ans. ((c))
Description : Golgi apparatus is absent in (a) Higher plants (b) Yeast (c) Bacteria and blue-green algae (d) Liver cells
Description : Tyloses are: (a) Lactiferous channels (b) Secretory cells (c) Sieve plates (d) Tracheal plugs plugging the lumen of vessels and tracheids
Description : In the secondary culture, cells are obtained from a. primary culture b. the organism c. organ culture d. phenotypic culture
Last Answer : a. primary culture
Description : 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
Last Answer : d. Unorganized actively dividing mass of cells maintained in cultured
Description : In Dracaena, the cambium arises from the cells of
Last Answer : In Dracaena, the cambium arises from the cells of - parenchyma outside the outermost vascular bundles
Description : The living cells having thickening at the corners due to deposition of pectin are known as
Last Answer : The living cells having thickening at the corners due to deposition of pectin are known as – Collenchyma cells.
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
Description : When embryo arises directly from the (2n) sporophytic cells like nucellus or integuments it is called as
Last Answer : When embryo arises directly from the (2n) sporophytic cells like nucellus or integuments it is called as – Adventive embryony
Description : When polyembryony is due to activation of some sporophytic cells of ovule, it is called as
Last Answer : When polyembryony is due to activation of some sporophytic cells of ovule, it is called as – Adventive polyembryony
Description : Cells of aleurone layer function for
Last Answer : Cells of aleurone layer function for – hydrolyzing the food material of seeds
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
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
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
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.
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.
Description : Who discovered living cells? Name the first discovered living organism
Last Answer : Ans: Leeuwenhoek, Bacteria
Description : Which hormone is found in fruits, flowers, seeds, leaves and roots ?
Last Answer : Ethylene hormone is found in fruits, flowers, seeds, leaves and roots.
Description : Inain is found in which tree ?
Last Answer : : Inain is obtained from cinchona tree.
Description : Consider the following statements: The genetic code said to be degenerate and universal which means that, (1) Amino afids may have more than one codon (2) All amino acids have mo than one codon (3) Codons are common for higher and lower organism (4) Codons are not found in bacteria
Description : Consider the following statements: (1) Cucurbits are monoecious plant (2) In mango, neuter, male and female and female flowers occur together (3) Legumenous plants how unisexuality (4) Oblique septa is found in Rosaceae
Description : In the bacteria: (1) Mesosome is present (2) Nucleoid represents the genome (3) Ribosomes are found in cytoplasm (4) Histone proteins complexed with DNA
Description : The hypogeal germination is found in: (a) Bean (b) Maize (c) Rhizophora (d) Cucurbita Ans. (b) Directions: In the following questions more than one answer given may be correct select the correct ... (1) Piper-Climbing root (2) Ficus-Climbing root (3) Buttress root-Bombax (4) Vitis-Nodulated root
Description : Casparian strips are found in: (a) Periderm (b) Epidermis (c) Endodermis (d) Hypodermis
Description : Thick cuticle, sunken stomates are found in leaves of: (a) Hydrophytes (c) Mesophytes (b) Xerophytes (d) Epiphytes
Description : Decot root having more than six vascular bundles are found in (a) Pea (b) Sunflower (c) Ficus (d) Ranunculus
Description : In certain parts of India, muscular dystrophy is commonly found amongst the poor people because they eat cheap pulse from the plant (a) Pisum satiuvm (b) Lathyrus sativus (c) Cicer arietmum (d) Phaseolus mungo
Description : Root cap is not found n: (a) Mesophytes (c) Hydrophytes (b) Xerophytes (d) Halophytes
Description : Double fertilization is found in: (a) Bryophytes (b) Angiosperms (c) Gymnosperms (d) Pteridophytes
Description : Floridean starch is found in: (a) Chlorophyceae (b) Myxophyceae (c) Phaeophyceae (d) Rhodophyceae
Description : Basal placentation is found in the family: (a) Malvaceae (b) Solanaceae (c) Fabaceae (d) Asteraceae
Description : Which of the following species of Pinus is not found in India ............. a) Pinus merkusii b) P. gerardiana c) P. wallichiana d) P. maritima.
Last Answer : d) P. maritima.