46180.In a polysaccharide, the individual monosaccharides are linked by a……
Glycosidic bond
Peptide bond
Ester bond
Phosphodiester bond
46181.Which the folowing pair regarding to biological importance of carbohydrates is not correctly matched?
Cellulose->Forms the plant cell wall.
Glycogen ->Reserve food in animals.
Ribose sugar->Structural components of ATP.
Galactose->The most widely used in respiration.
46182.Which of the following group is not organic group?
Fats, Proteins , Enzymes, Hormones.
Co-factors, Hormones, Water, Minerals.
Proteins, Carbohydrates, Nucleic acid, Hormones.
Proteins, Carbohydrates, Fats, Enzymes.
46183.Which one of the following pairs is not correctly matched?
Galactose – Lactose
Fructose – Glucose
Fructose – Galactose
Ribose – Deoxyribose.
46198.The nuclear membrane disintegrates and spindle appears at :
Prometaphase
Early prophase
Late telophase
Late prophase
46199.Which factors are required for growth ?
An increase in group of cells, a duplication of genetic material
An increase in group of cells, production of daughter cells by mitosis
A dupliction of genetic material and a division assuring that daughter cells receive an equal complement of genetic material.
An increase in cell mass, a duplication of genetic material, a division assuring that each daughter cell receives an equal complement of the genetic material
46204.The stage of mitosis during which the nucleolus disintegrates and chromosomes appear is known as
Interphase
Metaphase
Prophase
Anaphase
46225.The pressure that prevails in cell due to number of substances dissolved in cell sap is ………. .
Wall pressure
Turgor pressure
Osmotic pressure
Diffusion pressure
46226.The plasmolysed cells regain turgidity and assume original volume under infuence of hypotonic solution. The process is called
Plasmolysis
Deplasmolysis
Endo osmosis
Exo osmosis
46231.In dorsiventral leaf, the number of stomata per unit area are generally.
Same on both the surface
More on lower surface (epidermis)
More on upper surface (epidermis)
Absent on upper surface
46232.In isobilateral leaf, the number of stomata per unit area are.
More on upper surface
More on lower surface
Approximately same on both the surfaces
Absent on both the surfaces
46239.Which method of hydroponics is used for providing nutrients to plants or seedlings in environ ment saturated with fine droplets of nutrients ?
Aeroponics
Continous flow of cultured solution
Static cultured solution
Suspension culture
46246.Deficiency of which element shows stunted growth ?
Mo, Ca, S, N
Cl, N, Cu, Zn
P, S, Mn, Ca
K, N, Fe, Ca
46250.State deficiency of Cl.
Wilting of stubby roots
brown spoted fruits
accumalation of purple pigment
premature leaf fall
46259.The name Melvin Calvin is associated with
synthesis of ATP during photosynthesis
release of water during photosynthesis
carbon fixation during photosynthesis
capture light energy during photosynthesis
46260.Who gave chemical compositions of chlorophyll and carotenoids ?
Park and Biggins
Meyers and French
Willstatter and Stahi
Arnon and Benson
46275.Which apparatus is used for measurement of growth ?
Auxanometer
Potometer
Photometer
Hydrometer
46276.What is the required temperature for growth in most of the plants?
20-30° C
35-40° C
10-15° C
15-20° C