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About fifty years ago, plant physiologists set out to grow roots, by themselves in solutions in laboratory flasks. The scientists found that the nutrition of isolated roots was quite simple. They required sugar and usual minerals and vitamins. However, they did not require organic nitrogen compounds. These roots got along fine on mineral inorganic nitrogen. Roots are capable of making their own proteins and other organic compounds. These activities by roots require the energy of course. The process of respiration uses sugar to make the high-energy compound ATP, which drives the biochemical reactions. Respiration also requires oxygen. Highly active roots require a good deal of oxygen.
The relationship between a plant's roots and its shoots
what can be learned by growing roots in isolation
How plants can be grown without roots
How plants can be grown without roots
A biochemical process
The tip of root
A chemical compound
A type of p;ant cell
recklessly
reliably
ruthlessly
restlenssly
have been going
are going
has been going
are gone
has been looking
will be looking
had been looking
has looked
By whom you were taught French ?
By whom French was taught you ?
French was taught you by who
By whom were you taught French ?
I was threatened to hear his words
I was surprise to hear his words
I was surprised to hear his words
I was stunned to hear his words
I can go, but why shall I go ?
I may go , but why I will go?
I can go, but why should I?
I can go, but why do I?
Get ready for the rainy season
change his address
To begin a new course of improved behavior , habit , etc
Plant new trees
Show surprise of disapproval
Show agreement
Show happines
Show indifference
the marriage guest
the mariner
Death's female companion
Death
Promotion
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