Hypertension is the condition in which one has high blood pressure in the arteries.
The cell membrane, also called the plasma membrane, has the following characteristics:-
1. It is present as the outermost layer in animal cells and lies below the cell wall in plant cells.
2. The cell membrane surrounds the cytoplasm of living cells, physically separating the intracellular components from the extracellular environment.
3. The cell membrane is semi-permeable, ie, it allows some substances to pass through it and does not allow others.
4. It is thin, flexible and a living membrane, which consists of a lipid bilayer with embedded proteins/
5. The cell membrane has large content of proteins, typically around 50% of membrane volume. These proteins are important for cell because they are responsible for various biological activities.
Traditionally, the sun has provided energy for practically all living creatures on earth, through the process of photosynthesis, in which plants absorb solar radiation and convert it into stored energy for growth and development. Scientists and engineers today seek to utilize solar radiation directly by converting it into useful heat or electricity.
A. T-A-C-G-A-T
A and T pair together, and G and C pair together. There are no U’s because U’s are in RNA, not DNA.
The biological processes that account for the difference is Meiosis and recombination.
Meiosis ensures that all organisms produced through asexual reproduction contain the correct number of chromosomes and also produces genetic variation by the process of recombination. This happens during meiosis 1 where cross over or recombination takes place, genetic material is exchanged between non sister chromosomes. Cross over creates new combinations of genes in the gametes that are not found in either parent, causing genetic diversity.
