Final Exam Pack For
Human Biology
(Concepts and Current
Issues)
(2026-2027)
** 100% Guaranteed Pass
** Expert-Verified Explanation
** Questions with Verified Answer
** Latest Edition | Updated
, Covalent Bond an electron sharing bond
strongest chemical bonds in nature
rarely breaks
Ion An electrically charged atom of molecule
has shortage or surplus of more than one electron
Ionic Bond two oppositely charged ions come together
weaker than covalent
Polar molecules such as water that are electrically neutral overall but still have partially
charged regions or poles
Hydrogen Bond WEAK attractive force between oppositely charged regions of polar molecules
that contain covalently bonded hydrogen
Keeps DNA together
What is the most essential molecule? Water
makes up 60% of our body weight
Solvent is a liquid in which other substances dissolve
Solute any dissolved substance
Organic molecules molecules that contain carbon and other elements held together by covalent
bonds
Dehydration Synthesis macromolecules are built within the cell itself
smallest units are simple sugars and the macromolecule is carbohydrate
REMOVES water molecules
Hydrolosis macromolecules are broken down
a water molecule is added each time a covalent bond is broken
Monosaccharide "one sugar"Ribose, deoxyribose, glucose, fructose, most important in humans
Oligosacchrides Short strings of monosaccharides linked together by dehydration synthesis
(Sucrose)
Polysaccharides are a convenient way for cells to stockpile extra energy by locking it in the bonds
of the polysaccharide molecule
Lipids do no dissolve in water
triglycerides neutral fats. saturated fats, unsaturated fats
stored in adipose (fat) tissue and are an important source of stored energy in our
bodies
Human Biology
(Concepts and Current
Issues)
(2026-2027)
** 100% Guaranteed Pass
** Expert-Verified Explanation
** Questions with Verified Answer
** Latest Edition | Updated
, Covalent Bond an electron sharing bond
strongest chemical bonds in nature
rarely breaks
Ion An electrically charged atom of molecule
has shortage or surplus of more than one electron
Ionic Bond two oppositely charged ions come together
weaker than covalent
Polar molecules such as water that are electrically neutral overall but still have partially
charged regions or poles
Hydrogen Bond WEAK attractive force between oppositely charged regions of polar molecules
that contain covalently bonded hydrogen
Keeps DNA together
What is the most essential molecule? Water
makes up 60% of our body weight
Solvent is a liquid in which other substances dissolve
Solute any dissolved substance
Organic molecules molecules that contain carbon and other elements held together by covalent
bonds
Dehydration Synthesis macromolecules are built within the cell itself
smallest units are simple sugars and the macromolecule is carbohydrate
REMOVES water molecules
Hydrolosis macromolecules are broken down
a water molecule is added each time a covalent bond is broken
Monosaccharide "one sugar"Ribose, deoxyribose, glucose, fructose, most important in humans
Oligosacchrides Short strings of monosaccharides linked together by dehydration synthesis
(Sucrose)
Polysaccharides are a convenient way for cells to stockpile extra energy by locking it in the bonds
of the polysaccharide molecule
Lipids do no dissolve in water
triglycerides neutral fats. saturated fats, unsaturated fats
stored in adipose (fat) tissue and are an important source of stored energy in our
bodies
