The study of the appropriate provisions required to sustain life in an organism or the provisions themselves.

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47 views

Where do plants obtain the metal ions needed for biological processes?

Enzymes employ metal ions (e.g. Mg, Cr, Mn, Fe, Co, Ni, Cu, Zn) for catalysing certain reactions. Let's consider planting a seed. Where will it obtain these metal ions from? Just from water?
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0answers
75 views

How does a garlic clove thrive inside a closed refrigerator?

A garlic clove has been growing very well inside a closed refrigerator. It has developed beautiful green stalks, which I think are the equivalent of leafs. Since they are green, I assume they ...
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0answers
40 views

How to quantify quality of vegetables and fruits?

I am interested in knowing if there have been studies in quantifying the quality of vegetables and fruits. By simple examination, it is possible for us to identify if a particular vegetable is 'spoilt'...
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0answers
29 views

On vs. off-plant ripening: which one yields a more nutritious fruit?

Many fruits may ripen either when attached to the plant, or once it is detached from the plant. Which option yields a more nutritious fruit? In other words, if one picks a fruit when it is still ...
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0answers
41 views

Could felines live without meat?

Algae are a source of taurine and mushrooms are a source of vitamin D3. Both also contain high protein. So, it seems possible to feed a cat or other felines without any meat. Are there any concerns to ...
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0answers
64 views

Zinc and brewer's yeast

I'm hoping for some information relating to yeast nutrition (specifically Saccharomyces cerevisea) in beer fermentation. Zinc is well-known to be necessary for yeast cultures to perform successful ...
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0answers
32 views

Hormones and body mass

I was wondering how some animals (bulls, elephants etc.) become so large by only eating grass or plant based material and why some humans can build large amounts of muscle and mass without a proper ...
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0answers
28 views

How can plants be grown in hydroponics, and yet not handle too much water in soil?

It's pretty much common knowledge that plants planted in pots or soil that doesn't have good drainage can't be watered too much, or they'll "drown". Regardless of what actually happens, experience ...
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0answers
24 views

To what extent does the cooking time impact the nutritional content when boiling potatoes?

I wonder to what extent the cooking time impacts the nutritional content when boiling unpeeled potatoes with unsalted water. http://www.livestrong.com/article/340060-does-boiling-potatoes-reduce-...
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22 views

How does Ultra-pasteurized milk compare with pasteurized milk?

I am specifically interested in whether all proteins and nutrients lose their structure permanently because of the very high temperature of ultra-pasteurization. What is the case for pasteurized milk?...
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0answers
18 views

What exactly are polyphenols and what benefits do they provide to humans?

I say somewhere that they are antioxidants, but I was wondering if the two terms are synonymous or if that is just one of many things polyphenols can do.
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0answers
12 views

What explains the different nutrients of seeds?

I was eating a orange while at work and thought to myself, "Why are oranges sugary, and avocados fatty?" They functionally both do the same thing, right? So my thoughts are simply that this is ...
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23 views

Is it better to eat something that is more or less related to humans?

My question is, would it be better to eat something like a sea cucumber or would be it better to eat a chimpanzee? Maybe this isn't a dichotic answer. Is it better to eat something in between, like ...
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41 views

Cell energy consumption and food intake

I am wondering if each cell in human body starts consuming ten percent more energy, how much food one has to consume compared to normal intake?