Introduction Microscopy helps us to understand or gives access to see the direct images of various tissues, organisms, organelles, microorganisms, molecular assemblies, and proteins. It is an important, complementary technique to visualize the macro and/or microscopic structure and to assign structure to function and vice versa. The discovery of an electron microscope was not sudden, […]
Electron microscope: Definition and types Read More »
Introduction Earth is a very diverse planet with various species. Hence is composed of both living and non-living things. The source and quantity of all these substances on earth are fixed. All living things like viruses, bacteria, plants, animals, and the human body are composed of basic elements. All these elements have been circulating in
Biogeochemical cycle Read More »
Introduction Cells are the structural and functional units of the organism. They carry metabolic activity and hereditary information and hence an organism consists of one or more cells. A cell is so small that it is not visible to the naked eye and thus requires a microscope. At present small parts of the cell can
Components of cell membrane Read More »
Introduction The world is full of diversity and plants and animals are living together. A cell is the basic unit of life for all living things on this earth. Among all these living things, plants are a large group of the whole living world. The structure and function of the cell membrane of the plant
Cell membrane of plant cell: definition and structure Read More »
Introduction In ancient times, people used to think that the world had not changed. There is no such concept of evolution and origin. In the fifth century, BC Xenophane discovered some fossils and showed that there is a difference between the past and present organisms. In the fourth century BC, Aristotle proved that there are
Homologous vs Analogous organs Read More »
Introduction A microscope is used to see objects that are not visible to the naked eye. The electron microscope is a breakthrough invention in microbiology. It is of two types based on its structure such as transmission electron microscope and Scanning electron microscope (SEM). This microscope accurately describes the smallest part of an object. After
Scanning electron microscope (SEM): Structure and description Read More »
Introduction The thin membrane on the outside of the protoplasm of eukaryotic and prokaryotic cells is called the cell membrane. It is a major part of the cell that mainly helps in protecting different parts of the cell from external damage. The cell membrane is formed by the transformation of the outer part of the
Cell membrane model: Types and definition Read More »
Introduction Cells are the smallest and basic unit of life for all plants and animals. Its effectiveness is wide and life is not possible without it. All the physiological functions of an organism are actually the sum of the functions of each cell in the body. A cell can be said to be living separately.
Golgi bodies or apparatus: Function and Definition Read More »
Introduction As we all know a cell is a structural unit of organisms. Each cell carries all the biological functions like respiration, nutrition, excretion, reproduction, growth, etc. That is why cells are also called functional units of the organisms. Different plant and animal cells have different structures and components. Each living cell is made up
Nucleus structure and function, definition Read More »
Introduction We are living in a diverse and colorful world. Earth is the only planet in our solar system where life sustains. The flora and fauna of the earth are very diverse. There are so many kinds of animals, plants, and microorganisms living on the earth. Among these organisms, only plants and some algae can
Chloroplast structure and function and definition Read More »
