Biomolecules, Molecular Bonding, and Metabolism Flashcards
what is the human body composed of?
60% water, 15% proteins, 15% lipids, 2% carbohydrates, 8% minerals
__________ are linked to each other to form macromolecules of the cell
biomolecules
what are the main categories of biomolecules
carbohydrates
proteins
lipids
nucleic acids
major component of human diet and it is an important source of body energy
carbohydrates
what is the composition of carbohydrates?
composed of 3 elements CHO (carbon, hydrogen, oxygen), water soluble
storage form of glucose in the body
Ribose, fructose, lactose, sucrose,maltose and glycogen
most abundant macromolecules in the body
proteins
what is the composition of proteins
CHON (carbon, hydrogen, oxygen, nitrogen), water insoluble, non-polar
what are the forms of lipids
triglycerides, cholesterol, fatty acids, phospholipids
formed by sharing of electrons between atoms
a strong and the most common bond in living organisms
covalent bonds
aka electrostatic bonds
transfer of one or more electrons from the outermost orbit of an electropositive atom to the outermost orbit of an electronegative atom
ionic bonds
positive end of one molecule is attracted to the negative end of another
hydrogen bonds
form cells that comprise living matter
biomolecules
provide the energy needed to sustain life
biomolecular reactions
what are the types of metabolic pathways
catabolic pathways
anabolic pathways
