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Yogita Ingle 6 years, 9 months ago
Potential energy of air bubble decreases, because work is done by upthrust on the bubble.
work done = - (change in potential energy )
here bubble rise due to net force(buoyancy force , gravitational force, drag force which is negligible) so work done by this net force is positive since force and displacement is in the same direction. so change in P.E. is negative, this means potential energy is decreasing
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Yogita Ingle 6 years, 9 months ago
A cofactor that firmly attaches to the apoenzyme is called prosthetic group.
Prosthetic groups are organic compounds and are distinguished from other cofactors in that they are tightly bound to the apoenzyme. For example, in peroxidase and catalase, which catalyze the breakdown of hydrogen peroxide to water and oxygen, haem is the prosthetic group and it is a part of the active site of the enzyme. Cofactor may be organic or inorganic (metal ions).
Posted by Bhoomi Singhal 6 years, 9 months ago
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Shubham Pandey 6 years, 9 months ago
Gaurav Seth 6 years, 9 months ago
It was on this day that a CT scan was done on King Tutankhamen’s mummy after an X-ray on the same by an anatomy professor. His was the first Egyptian mummy to undergo such a scan. A modern operation performed on a cursed ancient mummy paved way for various superstitions and rumors. The CT scan resulted in producing various life-like images.
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Yogita Ingle 6 years, 9 months ago
Dicot leaf :
(i) It is dorsoventral leaf.
(ii) Stomata found only on lower epidermis.
(iii) Reticulate leaf vena¬tion.
(iv) Mesophyll is differ-entiated into spongy and palisade tissues. e.g., Dicot plants.
Monocot leaf :
1. it is is isobilateral leaf.
2.Stomata found both on lower and upper epidermis.
3.Parallel leaf venation.
4.Mesophyll not divided into spongy and palisade tissues, e.g., Monocot plants.

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Riya Sharma 6 years, 9 months ago
1Thank You