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2
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0answers
21 views

Which step in endocytosis requires ATP?

Everybody seems to agree that endocytosis is an energy-using process, and as such requires ATP hydrolysis. However, which particular step requires it? More precisely, which 'molecular machine' ...
2
votes
1answer
40 views

Catabolism and muscle energy intake

From my own reading, there are three ways used by the body to produce energy: Alactic anaerobic (direct degradation of ATP and creatine phosphate for regeneration of ATP) Lactic anaerobic (breakdown ...
0
votes
2answers
30 views

Is it possible to merge the genomes of photosynthesizing and electron-transporting bacteria to make an electric cell?

I had an idea of making electric current from bacteria. There are some bacteria that can photosynthesize, and some others are capable of transmitting electrons through each other. Is it possible that ...
1
vote
2answers
68 views

Why a continuous supply of energy is needed to support a weight?

What motivates this question is the apparent discrepancy between the concept of Work in physics and in physiology. Work in physics is defined as the dot product of the force applied to move a certain ...
6
votes
0answers
40 views

What bacteria shed harvestable energy from root zone organic matter?

I recently heard of a successful effort that harvests energy from soil at plants' bases due to apparently bacterial breakdown of wastes from the plants: Via photosynthesis a plant produces organic ...
5
votes
1answer
93 views

Why do we get tired [closed]

At the end of a day full of work, it is general for people that their eyelids start to feel heavy. Laziness takes over and we begin to yawn. We all know that we're tired at that time, but why people ...
2
votes
0answers
54 views

Can a person's body produce enough electricity to break a wristwatch? [closed]

I know of someone who cannot seem to wear watches without the battery dying or something else about the watch going haywire. this person was told it is because their body is producing too much ...
1
vote
1answer
48 views

What is the biological basis for tiredness after eating? [duplicate]

I can sometimes feel quite drowsy after some "meals" (e.g. a cold cut & cheese sandwich with juice on the side) and less drowsy (or maybe less often) after others (such as a salad). This ...
3
votes
0answers
42 views

Why is ATP the main nucleoside triphosphate used to exchange energy? [duplicate]

Out of all of the nucleoside triphosphates what makes ATP the most used? Is it its structure? The amount of energy it contains? Why is GTP not used as much? What is the deal with the other nucleoside ...
3
votes
0answers
49 views

What makes the amide bond the lowest energy pathway? [closed]

I've reading about proteomics and how it can be used with mass spectrometry to sequence digested peptides. Reading this paper the author states (in box 2): peptide fragmentation induced by ...