What is the difference between saprophytic and parasitic nutrition?
Answer: Parasite and saprotrophic nutrition refer to the heterotrophic mode of nutrition. Parasitic nutrition Saprotrophic nutrition When the species derives... View Article
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Algae have cell wall made up of (1) Cellulose, hemicellulose and pectins (2) Cellulose, galactans and mannans (3) Hemicellulose, pectins and proteins (4) Pectins, cellulose and proteins
Answer: (2) Cellulose, galactans and mannans Alga is a term that describes a large and incredibly diverse group of eukaryotic, photosynthetic... View Article
An epigynous flower is characterized by (1) Inferior ovary (2) Superior ovary (3) Oblique overy (4) Half superior and half inferior overy
Answer: (1) In epigynous flowers, the ovary is inferior to the other three parts. Here, the thalamus encloses the ovary... View Article
What does the filiform apparatus do at the entrance into or Function of filiform apparatus is to (1) It helps in the entry of pollen tube into a synergid (2) It prevents entry of more than one poller tube into the embryo sac (3) It brings obout opening of the pollen tube (4) It guides pollen tube from a synergid to egg
Answer: (1) Filiform system assists in entering a pollen tube into an ovule synergy. The filiform device is a finger-like... View Article
Bacillus ramosus and Bacillus vulgaris are examples of (1) Ammonifying bacteria (2) Nitrate bacteria (3) Nitrite bacteria (4) Symbiotic bacteria.
Answer: (1)Ammonifying bacteria Explanation Bacteria are microscopic, single-celled organisms that live in large numbers in a variety of environments, both... View Article
What are bulliform cells?what are their functions?
Answer: Bulliform cells or motor cells are large, bubble-shaped epidermal cell that occurs in groups of several monocots on the... View Article
Convert the following rupees into paise :Rs 90
Answer: Given that Rupees 90 Find out We need to convert rupees 90 into paise Solution We know that 1... View Article
Saheli, a female antifertility pill is used (1) Daily (2) Weekly (3) Quarterly (4) Monthly
Answer: (2) Saheli established at Lucknow at Central Drug Research Institute. For a female, it’s a new oral contraceptive pill.... View Article
AssertionSound waves do not travel through vacuumReasonSound waves are mechanical waves which require a medium for their propogation (1) Both assertion and reason are correct and the reason is the correct explanation asseration (2) Both assertion and reason are correct but the reason is not the correct explanation asseration (3) Asseration is correct but reason is not correct (4) Both asseration and reason are incorrect
Answer: Sound waves are mechanical waves. In comparison to electromagnetic waves, they involve a propagating medium. The velocity of the... View Article
Define the terms monoecious and dioecious with respect to sexuality in plant mentioning examples for each.
Answer: The terms monoecious and dioecious are used to describe plant sexual reproduction. Monoecious plants. Plants that have both female... View Article
The hybridization of carbon in diamond, graphite and acetylene is respectively: (1) sp3. sp, sp2 (2) sp, sp2, sp3 (3) sp3, sp2, sp (4) sp2, sp3, sp
Answer: (3) sp3, sp2, sp Explanation Diamond and Graphite, both are known as the allotropes of carbon. All the carbon... View Article
What is the mass of one molecule of oxygen?
Answer: The molecular mass of an element is defined as the sum of the masses of the elements present in... View Article
German silver is an alloy of (1) Fe, Cr, Ni (2) Ag, Cu, Au (3) Cu, Zn, Ni (4) Cu, Zn, Sn
An alloy is a substance formed from the combination of two or more metals. Alloys can also be formed from... View Article
Find the center of mass of uniform semicircular ring of radius R and mass M
Answer: We are taking a half ring, which has a uniformly distributed mass with a radius of R. The centre... View Article
What are the consequences of deforestation?
Answer: Deforestation can be defined as the large-scale removal of trees from forests (or other lands) for the facilitation of... View Article
A ____ lens is used to correct myopia and a ____ lens is used to correct hypermetropia. (1) Concave, concave (2) Convex, convex (3) Convex, concave (4) Concave, convex
Answer: (4) Myopia or Nearsightedness occurs when the eye loses its ability to focus on far-off objects as the lenses... View Article
Define perigynous flower?
Answer: Perigynous flowers are the ones in which gynoecium stays in the centre and other parts of the flower are... View Article
What is genophore?
Answer: The prokaryotic cells fold the fibres and form genophore. The chromatin fibres are present around the undefined nucleus. Genophore... View Article
Differentiate between menstrual cycle and oestrus cycle.
Answer: Menstrual cycle: In a life cycle, a woman’s body is vulnerable to a variety of changes. The cycle of these... View Article
What is formula for permutit or zeolite which is used as softer in ion-exchange method?
Answer: Permutit is a zeolite of an artificial source. It is orthosilicate of sodium aluminium compound with chemical formula Na2Al2Si2O8.xH2O.... View Article
