Which one of the following four glands is correctly matched with the accompanying description?
Actin protein occurs in two forms
Joint of sternum and ribs is-
Thomas Engelmann illuminated a filament of algae with light that passed through a prism, thus exposing different segments of the algal filament to different wavelengths of light. He added aerobic bacteria and found that these bacteria congregated in the areas illuminated by red and blue light. If you ran the same experiment without passing light through a prism, what would you predict?
The living organisms can be unexceptionally distinguished from the non-living things on the basis of their ability for
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Solution
There are several factors and processes which differentiate living beings with non-living beings like reproduction,respiration, growth, etc. But among them reproduction is the only difference which differentiate without any exception living beings with non-living things.
Cellulose is the major component of cell walls of
Cholecystokinin and secretin are
Which one of the following is not a living fossil?
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Solution
Archaeopteryx is a fossil(dead) found from the mesozoic rocks. It is a connecting link between reptiles and birds.
Nuclear DNA exists as a complex of proteins called ______that condenses into ______ during cellular division.
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Solution
The complex of proteins and DNA is called chromatin. Chromosomes are only present during cell reproduction.
Arteries are best defined as the vessels which :
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Solution
Arteries are the vessels which break up into capillaries which reunite to form one visceral organ.
The thallus of Volvox is called
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Solution
Volvox is a hollow ball like colony with a fixed number of cells is called coenobium.
Small proteins produced by vertebrate cells in response to viral infections inhibiting viral multiplication are known as
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Solution
Lipoproteins are conjugated proteins having polypeptides in association with lipids. Immunoglobulins are the constituent of antibodies. Interferons (INFs) area groupof three vertebrate glycoproteins (i.e. a, b, g,)Out of these three α and β are produced within virally infected cells.
Interferon induces among adjacent cells,as antiviral state by inducing synthesis of the enzymes which inhibit the viral production cycle.
Casparian bands are present in :
The equation \(\frac{\Delta N_{n}}{\Delta N_{t}}\) represents which of the following
Optimum temperature of photosynthesis is
A number of leaflets arranged alternately or in opposite manner is known as
Which enzyme break downs the fructose-1,6-diphosphate?
Jatropha is a
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Solution
Jatropha is a genus of flowering plants in the spurge family, euphorbiaceae. Currently the oil from Jatropha curcas seeds is used for making biodiesel fuel in Phillippines and in Brazil.
Questions contain STATEMENT-1 (Assertion) and STATEMENT-2 (Reason).Question has 4 choices (a), (b), (c) and (d) out of which ONLY ONE is correct.
Statement 1 : In alcoholic fermentation, the hexose molecule is converted into glucose and fructose.
Statement 2:Alcoholic fermentation is anaerobic respiration brought about by enzyme zymase.
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Solution
Alcoholic fermentation is the respiration in absence of O2. In this process, hexose molecule is changed to ethylalcohol and CO2. In presence of zymase enzyme. In this less amount of energy is released as compared to aerobic respiration.
If you are provided with root-tips of onion in your class and are asked to count the chromosomes, which of the following stages can you most conveniently look into –