Answer:
During the uncoupling of electron transport chain energy that is generated by the transport of electron along with proton, is released as heat.
Explanation:
The proton motive force generate energy for the phosphorylation of ADP with inorganic phosphate to form ATP an energy rich molecule during the process called oxidative phosphorylation.
There are some chemical agents knowns as uncouplers for examole thermogennin,2'4-dinitophenyl.They does not interfere with the transport of electrons through various electron carriers which generate energy,but uncouplers blocks the phosphorylation step.
As a result the energy that is released during transport of electron, is liberated as heat.
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Answer:
1.67 ×10²³ atoms of hydrogen present in 2.5 g of water.
Explanation:
Given data:
Mass of water = 2.5 g
Number of hydrogen atoms= ?
Solution:
First of all we will calculate the molar mass of water.
Molar mass of H₂O = 16 +1 ×2 = 18 g/mol
The number of atoms will be determine through the Avogadro number.
The number 6.022×10²³ is called Avogadro number and it is the number of atoms or molecules in one gram of atoms of an element or one gram molecules of a compound.
First of all we will calculate the number of moles of water in 2.5 g.
Number of moles = mass /molar mass
Number of moles = 2.5 g / 18 g/mol
Number of moles = 0.139 mol
The number of molecules of water in 10 g.
0.139 × 6.022×10²³ = 0.837 ×10²³molecules
one water molecule contain two hydrogen atoms. For 0.837×10²³ molecules,
0.837×10²³× 2 = 1.67 ×10²³ atoms
Answer:
The immune system responds to antigens by producing cells that directly attack the pathogen, or by producing special proteins called antibodies. Antibodies attach to an antigen and attract cells that will engulf and destroy the pathogen. The main cells of the immune system are lymphocytes known as B cells and T cells.