study membrane proteins scientists

Scientists who investigate weather phenomenon are called meteorologists. To study a particular feature, may require an observation from a larger area. By combining great number of observations and analysing them by computers it is possible to get information about a large ..

Man is an omnivore. He depends on both plants and animals for food. In the previous chapter we studied about crops being the major source of our food. In this chapter, let us study about animal sources of food. Animal sources include eggs, meat, milk and fish. Eggs and meat are ..

It is a process by which certain substances like glucose molecules are transported against the concentration gradient. The carrier proteins in the cell membrane carry out the process. The substance present in the medium binds with the active site on the carrier protein..

Introduction - The different kinds of micromolecules and macromolecules that we have studied so far occur in the cell dissolved in solution or as suspensions in a colloidal state. Alternatively, they may be assembled into subcellular components like cell membrane, cytoplasm and ..

Introduction - Man is an omnivore. He depends on both plants and animals for food. We know that crops are a major source of food. In this chapter, we shall study about animal sources of food. Animal sources include eggs, meat, milk and fish. Eggs and meat are rich in proteins, f..

Introduction - There are just 26 alphabets in English language, but the number of words are innumerable. You have studied about the 115 known elements and how they are classified for systematic and comprehensive study. Thousands of compounds are born by various chemical reaction..

The artery that takes blood to the lungs. The arteries divide again and again to form narrower arterioles. The arterioles, branch into very thin tubes called the capillaries. The capillaries are in touch with the tissues and cells. While the walls of the arteries and arterioles have layers of smoo..

The head is almost conical in the human sperm. It is formed of an acrosome and nucleus enclosed in a thin membrane. The acrosome forms a cap at the anterior end of the nucleus. It is formed from the golgi complex. It secrets tissue - dissolving lytic enzymes called hyaluronidase which hel..

The artery that takes blood to the lungs. The arteries divide again and again to form narrower arterioles. The arterioles, branch into very thin tubes called the capillaries. The capillaries are in touch with the tissues and cells. While the walls of the arteries and arterioles have layers of smoo..

>Plastids are spherical or oval cell organelles found only in plant cells. Plastids are of two types: leukoplasts without any colouring pigments and chromoplasts containing colouring pigments. The most familiar chromoplasts are the chloroplasts containing chlorophyll. Lysosomes are organelles bound..