At neutral pH, the ionic group COO- on succinate makes bonds with the active site of succinate dehydrogenase. This bonding is required for succinate oxidation.
<h3>What is
succinate oxidation?</h3>
In the Krebs cycle , succinate dehydrogenase catalyzes the oxidation of succinate to fumarate, with the resulting electrons being supplied to respiratory chain complex III to decrease oxygen and produce water.
SDH oxidizes succinate to fumarate during the citric acid cycle. SDH is structurally similar to fumarate reductase, an enzyme that catalyzes the opposite process during anaerobic respiration in bacteria.
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Sinlge-celled organisms and soft, boneless animals. Back then organisms were single-celled and simple.
I am guessing its the chlorophyll. <span />

Correct choice is " Eating Carbohydrates "
Animals and other organisms access Glucose for cellular respiration, by eating <u>Carbohydrates</u> .
All organisms reproduce either sexually or asexually is the correct contrast to the mistaken idea of spontaneous generation
C . all the organisms reproduce either sexually or asexually
<u>Explanation:</u>
The organism could not arise only through the sexually and the asexual reproduction but it is also reproduced through the process of spontaneous generation.
The essential character is offspring is while mother supply is the only solid substrates. The reproduction also takes place by either the egg of the mother or the sperm of the father and began to grow when it is stimulated. Spontaneous generation is defined as the living creature that could arise from nonliving matter.