The space enclosed by the inner membrane is called the matrix in mitochondria and the stroma in chloroplasts. Both spaces are filled with a fluid containing a rich mixture of metabolic products, enzymes, and ions.
A because it’s dna fragments
<span>Laryngotracheobronchitis or croup is a disease that caused by viral infection. The virus could be influenza or parainfluenza virus. The infection will cause edema of the trachea and might obstruct the airway, causing difficulty in breathing.
</span>In this case, nurse should take attention to the patient airway and breathing. Patient with dypneu should be given oxygen and racemic epinephrine nebulized. Corticosteroid also help to reduce the swelling such as dexamethasome or budesonide inhalation.
Chromosomes are composed of deoxyribonucleic acid (DNA) mole
There are mainly two molecules that function as genetic material in living organisms.
These are ribonucleic acid(RNA) and deoxyribonucleic acid(DNA).
The organisms having DNA as genetic material require packaging of DNA as it is a long polymer of deoxyribonucleotides.
In the case of human beings, the length of DNA in a cell is approximately 2.2 meters which is very large as compared to the size of the nucleus( approximately 10^-6 meters).
So, the DNA has to be made compact for it to be present inside the nucleus of a cell.
Therefore, the DNA present inside the nucleus of a cell undergoes coiling and compaction through several stages before finally becoming a chromosome, which is shown in the adjoining diagram.
Thus, chromosomes are composed of deoxyribonucleic acid (DNA) molecules.
To know more about "DNA Packaging", refer to the following link:
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Plants use sunlight during photosynthesis in order to use it to make sugar