General Biology
Ø A
chemical change in DNA molecule is called mutation.
Ø Glycogen
acts as a short-term food reserve in animals.
Ø Estrogen
is a female-sex hormone.
Ø The
enzyme amylase aids in the digestion of starch.
Ø ATP
synthesis takes place in mitochondria.
Ø 70%
of the body weight of a man is water.
Ø Adipose
tissue in human being is present below dermis.
Ø The
tough transparent membrane that protects the eye ball is called cornea.
Ø Energy
is produced in human body by Carbohydrates.
Ø Adenosine
Triphosphate (ATP) provides energy for all kinds of activities of a cell.
Ø Cell
wall and vacuoles are present in a plant cell but are absent in an animal cell.
Ø Sugar
is the product of the dark reactions of photosynthesis.
Ø Melvin
Kelvin was awarded Nobel Prize for his work on Photosynthesis
Ø Chlorophyll
contains magnesium in granae.
Ø The
largest flower in the world is Refflessia and the smallest one is wolfessia.
Ø Penicillin
is obtained from penicillium Notatum.
Ø Reserpine
derived from the plant 'serpentine' is used to alleviate high blood pressure.
Ø Plants,
living in acidic soils, are called oxalophytes.
Ø Photosynthesis
is most active in blue and red light in which light energy is
Ø converted
into chemical energy and 02 is not a limiting process during this process.
Ø The
smallest bone, lies stapes is found in the human ear.
Ø Enzymes
are basically proteins.
Ø Mitochondria
is called the 'power house of the cell'
Ø Pancreas
is both an endocrine and exocrine gland.
Ø Persons
of blood group '0' are called 'Universal Donor' while that of 'AB' are
Ø called
'Universal Acceptors'.
Ø Seedless
fruits are formed by parthenogenesis.
Ø Simple
plants that contain no chlorophyll are called fungi.
Ø Spirogyra
is commonly known as 'pond silk'
Ø The
longest muscle in the human body is found in thigh.
Ø In
some leaves, the outermost layer of cells secrets continuous waxy layer,
Ø called
cuticle.
Ø In
a leaf, the opening between two guard cells is stomata.
Ø Gibberellins
are responsible for cell elongation.
Ø The
chemical name of chlorophyll is magnesium Dihydro prophysin.
Ø Bile
is produced in liver and stored in gel bladder.
Ø All
arteries, except pulmonary artery carry oxygenated blood.
Ø The
main function of W.B. C. is to produce antibodies.
Ø Retina
in the eye, acts as a film in the camera.
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