BIO 105 EXAM 1 PRACTICE QUESTIONS WITH
DETAILED EXPLANATIONS 2026
◉ What type of bond holds together the parts of a water molecule?
Answer: Polar covalent bond
◉ What is the basic unit of structure and function of living things?
Answer: A cell
◉ If the most common form of Carbon has 6 protons, 6 neutrons,
and 6 electrons. Which elements would be an Isotope of carbon?
Answer: An atom with 6 protons, 8 neutrons, and 6 electrons
◉ The alpha helix and beta represent which level of protein
structure?
Answer: Secondary structure
◉ Which of these are not a lipid?
A. Phospholipid
B. Cholesteral
C. Estrogen
D. RNA
, Answer: D. RNA
◉ A hydrophilic molecule...
Answer: Will attract to polar molecule
◉ Which is the process of by which cells link monomers together to
form polymers and by doing this water is produced?
Answer: dehydration synthesis (dehydration reaction)
◉ A monosaccharide is to a carbohydrate as...
Answer: An amino acid to a protein
◉ A peptide bond is...
Answer: A covalent bond
◉ What determines the types of chemical reactions that an atom
participates in?
Answer: The number of electrons in the outermost shell
◉ What polysaccharide do plants use to store energy?
Answer: Starch
DETAILED EXPLANATIONS 2026
◉ What type of bond holds together the parts of a water molecule?
Answer: Polar covalent bond
◉ What is the basic unit of structure and function of living things?
Answer: A cell
◉ If the most common form of Carbon has 6 protons, 6 neutrons,
and 6 electrons. Which elements would be an Isotope of carbon?
Answer: An atom with 6 protons, 8 neutrons, and 6 electrons
◉ The alpha helix and beta represent which level of protein
structure?
Answer: Secondary structure
◉ Which of these are not a lipid?
A. Phospholipid
B. Cholesteral
C. Estrogen
D. RNA
, Answer: D. RNA
◉ A hydrophilic molecule...
Answer: Will attract to polar molecule
◉ Which is the process of by which cells link monomers together to
form polymers and by doing this water is produced?
Answer: dehydration synthesis (dehydration reaction)
◉ A monosaccharide is to a carbohydrate as...
Answer: An amino acid to a protein
◉ A peptide bond is...
Answer: A covalent bond
◉ What determines the types of chemical reactions that an atom
participates in?
Answer: The number of electrons in the outermost shell
◉ What polysaccharide do plants use to store energy?
Answer: Starch
