if food turns into energy, why do we need to use the toilet?

Answer 1

for number one's
glucose + oxygen ----> carbon dioxide + water + energy

this is the chemical reaction that produces the energy in animals.
water is a byproduct of the reaction
plants use the reverse reaction and that's why they need water and sunlight (energy)

for number two's
our body doesn't digest all of the food that we eat, it only digests what it needs; carbohydrates which it converts to fat and glucose for energy, protein which it converts to amino acids for growth, and vitamins and minerals which provide nutrients for growth and some of which are catalysts for these reactions.
The rest pops out the other end

the end
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Answer 2

You are talking about efficiency. If machines and bio systems were 100% efficient then you would get 100% energy out of the food. However you get by-products (waste) that cannot be utilised. If you were very clever you would eat exactly the right amount to product the energy you needed to do the Work your body was going to do. The body has reserves stored so it is a balance to keep all the functions of the body working.

Answer 3

It is not precisely correct to say that food turns into energy, as if some total conversion process were at work there.

Food is transformed from one form to another, and the final form goes into the latrine.

Food contains what is known as *chemical energy* which is released and transformed into a type of energy that the body can use.

What is left over (the waste), lacks this chemical energy since the body has already extracted it.



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Answer 4

It is right that food turns into energy but it depends on the capacity of the machine or instrument which is carrying out the job.
Now do u know that if we can completely convert 1 gm of sugar into energy we wont need the electricity for atleast a thousand years.
But our body cannot completely convert the eaten food into energy thus waste is produced and we need to eat periodically.

Answer 5

We still need to go to the toilet because our body is not efficient enough to convert mass into energy eg. e=mc^2. Our body requires nutrients as well as energy. The energy that the body uses from food is the energy from covalent bonds between molecules and not atomic bonds. Therefore, the body is still required to dispose of the molecules after obtaining the energy from the food.

Answer 6

Not exactly turns into energy as such, the body extracts from the food what it needs to give the boy energy. The waste is then disposed of.

Answer 7

well not all foods provide energy carbohydrates are the energy giving proteins are body building etc but some of what we eat the body wont utilise thats what comes out as faeces when the body has extracted all it could use from the food uve provided to it

Answer 8

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Answer 9

We turn food into energy by digesting it, since we can't digest everything in our food we have to get rid of the stuff that's left.

Answer 10

Food also contains stuff that our bodies dont need. For example the fibre in food will go through our digestive systems.