BIOD 101 MODULE 5 EXAM PORTAGE
LEARNING PRACTICE QUESTIONS AND
RATIONALE GUIDE 2026
◉ What is matter made up of? Answer: Elements
◉ What is an essential element? Answer: An element that is
required for human life, and is present in large abundances.
◉ What is a trace element? Answer: An element that is required, but
only in small quantities.
◉ ionic bond Answer: A chemical bond resulting from the attraction
between oppositely charged ions.
◉ covalent bond Answer: A chemical bond that involves sharing a
pair of electrons between atoms in a molecule
◉ hydrogen bond Answer: weak attraction between a hydrogen
atom and another atom
◉ Ion Answer: A charged atom
, ◉ What is the charge of a cation? Answer: positive (t)
◉ What four organic compounds make up biomacromolecules?
Answer: Lipids, proteins, nucleic acids, carbohydrates
◉ What is a carbohydrate? Answer: Commonly referred to as sugars.
They are the primary fuel source for organisms and have the same
three elements in their main structure: carbon, hydrogen, and
oxygen. Fructose, glucose. H to O ratio always 2:1.
◉ Polymer Answer: A long molecule consisting of many similar or
identical monomers linked together.
◉ Monomer Answer: A simple compound whose molecules can join
together to form polymers
◉ Why are lipids unique among the macromolecules? Answer:
Lipids are insoluble in water. Lipids are also not monomers; they are
assembled from smaller molecules that are chemically linked
together
◉ Why are lipids insoluble in water? Answer: They are made of
mostly non polar hydrocarbon chains. Water will only dissolve other
LEARNING PRACTICE QUESTIONS AND
RATIONALE GUIDE 2026
◉ What is matter made up of? Answer: Elements
◉ What is an essential element? Answer: An element that is
required for human life, and is present in large abundances.
◉ What is a trace element? Answer: An element that is required, but
only in small quantities.
◉ ionic bond Answer: A chemical bond resulting from the attraction
between oppositely charged ions.
◉ covalent bond Answer: A chemical bond that involves sharing a
pair of electrons between atoms in a molecule
◉ hydrogen bond Answer: weak attraction between a hydrogen
atom and another atom
◉ Ion Answer: A charged atom
, ◉ What is the charge of a cation? Answer: positive (t)
◉ What four organic compounds make up biomacromolecules?
Answer: Lipids, proteins, nucleic acids, carbohydrates
◉ What is a carbohydrate? Answer: Commonly referred to as sugars.
They are the primary fuel source for organisms and have the same
three elements in their main structure: carbon, hydrogen, and
oxygen. Fructose, glucose. H to O ratio always 2:1.
◉ Polymer Answer: A long molecule consisting of many similar or
identical monomers linked together.
◉ Monomer Answer: A simple compound whose molecules can join
together to form polymers
◉ Why are lipids unique among the macromolecules? Answer:
Lipids are insoluble in water. Lipids are also not monomers; they are
assembled from smaller molecules that are chemically linked
together
◉ Why are lipids insoluble in water? Answer: They are made of
mostly non polar hydrocarbon chains. Water will only dissolve other
