Structure And Function Flashcards
What are the structural features of a triglyceride?
Composed of a glycerol molecule that is chemically bonded to 3 fatty acid chains. Via ester bonds
Biological function of triglyceride
Acts as a long term energy store, insulates the body. Provides protection for vital organs.
Structural features of glycogen
A polysaccharide which is composed of many glucose molecules connected together with glycosidic bonds
Biological function of glycogen
Long term energy store in metabolically active cells (liver/skeletal) vital intermediate in blood glucose regulation.
Structural features of an enzyme
3D globular structure created by the repeated folding of a polypeptide chain. Possesses an active site
Biological function of an enzyme.
Biological catalyst that speeds up the rate of a chemical reaction within the body. It is reusable and specific to one reaction.
Structural features of a phospholipid.
Composed a glycerol containing a phosphate head chemically bonded to two fatty acid chains via ester bonds.
Biological function of a phospholipid
One of the main components of a cell membrane( lipid bilayer) retain cell content and act as a selectively permeable barrier
Structural features of glucose
A hexose sugar (monosaccharide) made up of carbon, hydrogen and oxygen C6H12O6
Biological function of glucose
Serves as a source of fuel for cellular respiration, creating ATP energy for other cellular reactions.
Structural features of haemoglobin.
Consists of four sub units bonded together each sub unit being created from a single polypeptide chain and possessing an ion component.
Biological function of haemoglobin
Combines with oxygen in red blood cells so that this respiratory gas can be transported for use in aerobic respiration.
Identify a lipid
Triglyceride or phospholipid
Identify a carbohydrate
Glycogen or glucose
Identify a protein
Enzyme or haemoglobin
