summary of cell structure and functions

Summary - The cells of all living organisms consist of protoplasm, which is bound by a cell membrane. Prokaryotic cells and cells of algae, fungi and higher plants contain a cell wall outside the cell membrane. Some protozoans ..

fig. 16.16 - Summary of Structures found in a Cell..

Structure of Cell - Cells vary in shape and size. They may be oval, spherical, rectangular, polygonal, spindle shaped, star shaped, rod-shaped or totally irregular like the nerve cell. The diversity in cells is in accordance with the role or fu..

Structure of Cell - Cells vary in shape and size. They may be oval, spherical, rectangular, polygonal, spindle shaped, star shaped, rod-shaped or totally irregular like the nerve cell. The diversity in cells is in accordance with the role or fu..

Summary - All living organisms are composed of one or more cells. A cell is the structural and functional unit of life. The metabolic reactions in a living organism - can occur only in a delicately balanced environment. Through their unique chemical..

Cell is the structural and functional unit of the organism. Water is the principal constituent of plants and is essential for the maintenance of life, growth and developmen..

Growth is an irreversible increase in size and weight of an organism. The cells of the body do not grow uniformly but differentially. The main types of growth are auxetic, multiplicative and accretionary. The human growth curve is sigmoid and is controlled by hormones. Regeneration is of ..

) or secretory products (gums, alkaloids, hormones, etc) or excretory products (calcium carbonate and other salts). These substances are generally stored in the vacuoles. Cell organelles are mainly of two types membrane-bound and non-membranous. Membrane bound organelles include endoplasm..

All living and non-living systems are composed of molecules which follow a specific set of physical laws. The molecules found in the living systems are called biomolecules. They are represented by the molecules of about 25 elements of the 109 elements known to exist. Carbon, Hydrogen, Oxyge..

> In humans, the eyes are directed forward and give binocular vision. Ears are sensory organs that function as the organs of hearing and the organs for equilibrium. It has receptors that convert the vibrations into nervous impulses that are transmitted via the auditory nerve to the brain...