Answer:
a. Mitochondria
Explanation:
Mitochondria, the so-called "powerhouses" of cells, are unusual organelles in that they are surrounded by a double membrane and retain their own small genome.
Answer:
Primary active transport
Explanation:
Active transport may be defined as the movement of particles against their concentration gradient with the help of an energy source like ATP. Two main types of active transport are secondary active transport and primary active transport.
Primary active transport includes the sodium potassium pump because it directly uses the stored chemical energy in the form of ATP. Three sodium moves out of the cell and two potassium moves inside the cell with the help of ATP.
Thus, the correct answer is option (a).
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The number of people living with HIV in Russia now exceeds 1 million, according to official statistics. Most experts say the true figure is likely to be at least 1.5 million — around 1 percent of the total population of 146 million — because many people are unaware of their HIV-positive status.
For a patient with a new onset of Meniere disease the dietary modification icludes low salt diet and reduction of alcohol and caffeine daily intake.
An idiopathic inner ear ailment called Meniere's disease (MD) is characterised by tinnitus, fluctuating sensorineural hearing loss (SNHL) and spontaneous recurrent vertigo. Dietary changes, such as a low-salt diet and a daily intake reduction of alcohol and caffeine, are frequently used as the first line of treatment.
It is thought that a low salt consumption can aid to reduce endolymphatic pressure. Increased water and alcohol consumption enhances hearing and reduces the age at which Meniere's illness first manifests.
Learn more about Meniere's disease here:
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