Biology 121 Final Exam With Complete Questions And
Well Answered 2025/2026
What is the hierarchy of life from largest to smallest? - (ANSWERS)Biosphere-
Ecosystem-Community-Population-Organism-Organ system-Organ-Tissue-Cells-
Organelle-Molecule-Atom
A current example of natural selection is - (ANSWERS)The bacteria that has
become drug resistant
The usual process for the scientific method is: - (ANSWERS)Observation-question-
hypothesis-prediction-experiment-results-conclusion
Starch is a reserve polysaccharide made up of _____ subunits -
(ANSWERS)Gluclose
Monosaccharides are to polysacharides as ______ are to _______ -
(ANSWERS)Amino acids; proteins
All organic molecules contain: - (ANSWERS)Carbon
In polar covalent bonding, electrons are ______ ______ between two atoms -
(ANSWERS)shared unequally
I have an element alpha with an atomic number of 10 and I have another element
beta with the same number of protons but has 3 more neutrons than alpha. What is
the atomic number of beta? - (ANSWERS)10
What organelles are involved in energy conversion? - (ANSWERS)Mitochondrion
and chloroplast
Two molecules contain the exact same elements but are arranged differently what is
this called? - (ANSWERS)Isomer
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, Biology 121 Final Exam With Complete Questions And
Well Answered 2025/2026
Why is one side of a water molecule practically negative while the other side is
practically positive? - (ANSWERS)Uneven sharing of electron pairs occurs due to
the strong pull of oxygen.
Looking at the reaction above what type of reaction forms a triglyceride? -
(ANSWERS)Dehydration synthesis reactions
Which of the following dietary fats is considered to be the healthiest? -
(ANSWERS)Unsaturated cis fat
The structure of cholesterol is similar to the structure of: - (ANSWERS)Sex
hormones
The graph is showing the differences in _____ between a chemical reaction with and
without enzymes - (ANSWERS)Activation energy
Which structure selectively regulates the transport of substances into and out of a
planet cell? - (ANSWERS)The plasma membrane
What is the role of the protein component of chromatin? - (ANSWERS)Something
small and charged, like Mg ion
You have two beakers in front of you labled A and B. One beaker contains Sodium
Chloride and the other contains crystalized triglyceride. You cannot tell them
visually apart. You then take a subsample from beaker A and place it in water. The
substance dissolves. The substance in Beaker B does not dissolve which beaker
contains salt? - (ANSWERS)Beaker A
You just got a job at a blood bank and you are adding a chemical to preserve the
2/7
Well Answered 2025/2026
What is the hierarchy of life from largest to smallest? - (ANSWERS)Biosphere-
Ecosystem-Community-Population-Organism-Organ system-Organ-Tissue-Cells-
Organelle-Molecule-Atom
A current example of natural selection is - (ANSWERS)The bacteria that has
become drug resistant
The usual process for the scientific method is: - (ANSWERS)Observation-question-
hypothesis-prediction-experiment-results-conclusion
Starch is a reserve polysaccharide made up of _____ subunits -
(ANSWERS)Gluclose
Monosaccharides are to polysacharides as ______ are to _______ -
(ANSWERS)Amino acids; proteins
All organic molecules contain: - (ANSWERS)Carbon
In polar covalent bonding, electrons are ______ ______ between two atoms -
(ANSWERS)shared unequally
I have an element alpha with an atomic number of 10 and I have another element
beta with the same number of protons but has 3 more neutrons than alpha. What is
the atomic number of beta? - (ANSWERS)10
What organelles are involved in energy conversion? - (ANSWERS)Mitochondrion
and chloroplast
Two molecules contain the exact same elements but are arranged differently what is
this called? - (ANSWERS)Isomer
1/7
, Biology 121 Final Exam With Complete Questions And
Well Answered 2025/2026
Why is one side of a water molecule practically negative while the other side is
practically positive? - (ANSWERS)Uneven sharing of electron pairs occurs due to
the strong pull of oxygen.
Looking at the reaction above what type of reaction forms a triglyceride? -
(ANSWERS)Dehydration synthesis reactions
Which of the following dietary fats is considered to be the healthiest? -
(ANSWERS)Unsaturated cis fat
The structure of cholesterol is similar to the structure of: - (ANSWERS)Sex
hormones
The graph is showing the differences in _____ between a chemical reaction with and
without enzymes - (ANSWERS)Activation energy
Which structure selectively regulates the transport of substances into and out of a
planet cell? - (ANSWERS)The plasma membrane
What is the role of the protein component of chromatin? - (ANSWERS)Something
small and charged, like Mg ion
You have two beakers in front of you labled A and B. One beaker contains Sodium
Chloride and the other contains crystalized triglyceride. You cannot tell them
visually apart. You then take a subsample from beaker A and place it in water. The
substance dissolves. The substance in Beaker B does not dissolve which beaker
contains salt? - (ANSWERS)Beaker A
You just got a job at a blood bank and you are adding a chemical to preserve the
2/7
