Astudent drew the following model what is the energy input in the process shown? a. chemical energy in the bonds of food molecules b. carbon energy in molecules of carbon dioxide c. solar energy in the rays of sunlight d. electrical energy in the form of hydrogen ions

The correct answer is A.chemical energy in the bonds of food molecules.

The cells require a constant supply of energy to generate and maintain their functions. Sugars are most commonly used as fuel molecules (especially glucose). Food Molecules Are broken down in three stages: the first step is digestion (intestine), second is glycolysis (cytosol) and the third is the citric acid cycle together with oxidative phosphorylation (mitochondria). During the process of oxidative phosphorylation, ATP is produced.

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hey bro i looked it up on google the structure of the eye-spot in euglena viridie, e. ehrenbergii, and phacus pyriyorme is not as franzé haa described it. the so-called “crystal body” and “lens bodies” were not found in any of the individuals of the species examined by me. as earlier observers have stated, the eye-spot consists simply of a mass of pigment granules arranged in a single layer, and probably embedded in a protoplasmic framework, but the latter could not be seen, and its presence was only inferred from the fact that the pigment granules must be held together in some way, thd the eye-spot as a whole is capable of expansion, and that the pigment granules can be separated from each other.

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