Consider the flow of 'high-energy' electrons as they move from glucose through cellular respiration. which of the following correctly lists a possible order in which electrons flow? note that not all steps may be shown.
a. citric acid --> c02 --> atp
b. acetyl coa --> pyruvate --> co2
c. acetyl coa --> nadh --> atp
d. pyruvate --> nadh --> water
e. pyruvate --> acetyl coa --> atp

e. pyruvate --> Acetyl COA --> ATP

Explanation:

High energy electrons moves from glucose to form ATP. This is an oxidative process. Pyruvate or pyruvic acid is the end product of the glycolysis. The Pyruvate then undergoes Oxidative decarboxylation to form Acetyl COA.  The Acetyl COA then enters into mitochondrial matrix for further oxidation where it generates reduced coenzymes, NADH and FADH₂. The terminal oxidation of NADH and FADH₂ occurs on the inner membrane of mitochondria, where all the co-enzymes NADH and FADH₂ oxidised to release ATPs.

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explanation:

plate tectonics and volcanic euptions

over time, plate tectonic processes cause continents to move to different positions on the globe.

for example, britain was near to the equator 300 million years ago, and therefore was hotter than it is today. for further details look at our climate through time poster or online map.

the movement of the plates also causes volcanoes and mountains to form and these too can contribute to a change in climate.

mountain ranges formed by plate tectonics. large mountain chains can influence the circulation of air around the globe, and consequently influence the climate.   warm air might be deflected somewhere cooler by the mountains.

"menstrual cycle is a complex cycle that consists of several processes. order of occurrence of steps in menstrual cycle are as follows:

1. high progesterone levels maintain the endometrium lining of the uterus.

2. endometrium lining breaks down and low levels of estrogen stimulate the pituitary to release fsh and lh.

3. fsh and lh stimulates the follicles to develop and the oocyte to produce estrogen.

4. rising estrogen levels suppress fsh production and development of other follicles.

5. a spike in lh causes follicle to rupture.

6. a breakdown of corpus luteum causes progesterone level to drop."