Mitosis and the Cell Cycle

Genetic continuity is the transmission of the hereditary material through cell division. The Cell Cycle –      cells do not divide continuously –      in cells capable of dividing, the period between cell divisions is called interphase –      cells spend most of their time in interphase because this is the phase where they perform their functions (obtaining…

PROTEINS

Proteins in the human body have a wide range of functions which include: Hormones (insulin, testosterone), Muscle Fibers (actin, muasin), Carrier Protein (Oxygen carrying hemoglobin), Structure/ Support (nails/ hair), Enzymes (biological catalyst), Membrane Transport (Na/ K pump), Cell-to-Cell Recognition, Antibodies. Structure Proteins are polymers made up of amino acid subunits bonded together by peptide bonds.…

BIOLOGICAL MOLECULES

Biological molecules are macromolecules, which basically means they are polymers composed on small repeating units that have been covalently bonded together.  The exception to this is a type of lipid called triacyleglycerides or phospholipids which are relatively large molecules composed of smaller molecules bonded together. Subunits are chemically liked together in the cell by a…

THE DIGESTIVE SYSTEM

There are many organs and structures that make up the Digestive system and these organs or parts have key functions or roles to play which could include one or more of these: DIGESTION – mechanically or chemically breaking macromolecules to smaller units Mechanical: large food molecules are shredded, torn and ground; this helps  to increase…