Example of Internal Stimulus - Option A
A decrease in oxygen levels in the blood during exercise is an example of an internal stimulus. It is happening within the organism itself, it will be internal stimulus. But a sudden change of air temperature is not occuring within the body of organism.
It is the change outside so it is external. An artificial light that attracts insects and an increase in the amount of water available to plant. Both are happenings which occur outside the body hence both are external stimulus. Only a decrease in oxygen levels in the blood during exercise happens inside the body so it is only internal stimulus.
Answer:
a. Chemiosmosis requires the formation of an electron gradient.
b. In aerobic eukaryotes, chemiosmosis leads to the production of water and up to 34 ATP.
c. In eukaryotes, chemiosmosis requires that protons diffuse through ATP synthase in the inner mitochondrial membrane.
Explanation:
Chemiosmosis theory has been proposed for understanding the procedure for the production of ATP in eukaryotic organisms. In the process of chemiosmosis the movement of ions takes place across the semi-permeable membrane according to the concentration gradient. In the whole procedure the electrons move through various complexes and electron acceptors and finally reach to the final electron acceptor, the Oxygen. Due to the movement of electrons the energy is released which is used to pump the protons across the membrane.
Carbon dioxide + water -> glucose and oxygen
So, the answer would he 'A carbon dioxide and water combine and produce sugar and oxygen'.
Hope this helps! :)
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