outer space affairs

The movement of ions is termed as flux. The movement of ions into the cell is called influx and the movement of ions from the cell to outside is known as efflux. Usually the uptake of mineral ions by the plant cells or tissues involve two main phases. In the first phase, tissues kept in mineral sol..

Active Absorption - Movement of ions from the outer space of the cell to the inner space is generally against the concentration gradient and hence requires energy. This energy is obtained through metabolism either directly or indirectly. Various evidences indicate the ..

Cells are compact, plate-like with no inter-cellular spaces. It forms the outer layer of the skin and lines cavities and duct..

Acoelomata In acoelomata, the body cavity is not seen. The space between outer body wall (skin) and inner body wall (alimentary canal) is occupied by a tissue called mesenchyme. This condition is seen in flat worms (Platyhelminthes..

In astronomy, the low temperature microwave radiation that arrives at the earth's surface from all directions of outer space is called background radiation. It is so named because it forms a background to all the radio sources that have been detected by radio telescope..

Oxygen is the element, which is essential for the life survival system i.e., respiration. Molecular oxygen (O 2 ) combines with atomic oxygen (O) to produce ozone (O 3 ) layer in the atmosphere, which screens off most of the ultraviolet rays entering the earth's atmosphere from outer ..

There are a pair of lungs in the thoracic cavity - the left lung and the right lung. The left lung is slightly smaller (because of the heart which is slightly to the left of the body) and has two lobes and the right lung is bigger with three lobes. They are spongy and elastic organs that are broad ..

Side view of simple squamous epithelium Here the cells are compact, plate-like with no inter-cellular spaces. It forms the outer layer of the skin, and lines cavities and ducts. Its function is to protect underlying parts from germs and inju..

The speed acquired by the rocket when the whole of the fuel gets burnt is called the burn-out speed of the rocket. It is the maximum speed acquired by the rocket. When the rocket acquires burn-out speed vb, the mass of the rocket becomes equal to the mass of the empty container, say, m c . When th..

In astronomy, the low temperature microwave radiation that arrives at the earth's surface from all directions of outer space is called background radiation. It is so named because it forms a background to all the radio sources that have been detected by radio telescopes. Cosmic ..