Biology 121 Final Exam 2026 –
Complete Collection of Actual Exam
Questions with Verified Answers for
High-Pass Performance
What is the hierarchy of life from largest to smallest? - answ✔💜💜💜✔Biosphere-Ecosystem-
Community-Population-Organism-Organ system-Organ-Tissue-Cells-Organelle-Molecule-Atom
A current example of natural selection is - answ✔💜💜💜✔The bacteria that has become drug
resistant
The usual process for the scientific method is: - answ✔💜💜💜✔Observation-question-hypothesis-
prediction-experiment-results-conclusion
Starch is a reserve polysaccharide made up of _____ subunits - answ✔💜💜💜✔Gluclose
Monosaccharides are to polysacharides as ______ are to _______ - answ✔💜💜💜✔Amino acids;
proteins
All organic molecules contain: - answ✔💜💜💜✔Carbon
, In polar covalent bonding, electrons are ______ ______ between two atoms -
answ✔💜💜💜✔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? -
answ✔💜💜💜✔10
What organelles are involved in energy conversion? - answ✔💜💜💜✔Mitochondrion and
chloroplast
Two molecules contain the exact same elements but are arranged differently what is this called? -
answ✔💜💜💜✔Isomer
Why is one side of a water molecule practically negative while the other side is practically positive? -
answ✔💜💜💜✔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? -
answ✔💜💜💜✔Dehydration synthesis reactions
Which of the following dietary fats is considered to be the healthiest? - answ✔💜💜💜✔Unsaturated
cis fat
The structure of cholesterol is similar to the structure of: - answ✔💜💜💜✔Sex hormones
The graph is showing the differences in _____ between a chemical reaction with and without enzymes -
answ✔💜💜💜✔Activation energy
Which structure selectively regulates the transport of substances into and out of a planet cell? -
answ✔💜💜💜✔The plasma membrane
What is the role of the protein component of chromatin? - answ✔💜💜💜✔Something small and
charged, like Mg ion
Complete Collection of Actual Exam
Questions with Verified Answers for
High-Pass Performance
What is the hierarchy of life from largest to smallest? - answ✔💜💜💜✔Biosphere-Ecosystem-
Community-Population-Organism-Organ system-Organ-Tissue-Cells-Organelle-Molecule-Atom
A current example of natural selection is - answ✔💜💜💜✔The bacteria that has become drug
resistant
The usual process for the scientific method is: - answ✔💜💜💜✔Observation-question-hypothesis-
prediction-experiment-results-conclusion
Starch is a reserve polysaccharide made up of _____ subunits - answ✔💜💜💜✔Gluclose
Monosaccharides are to polysacharides as ______ are to _______ - answ✔💜💜💜✔Amino acids;
proteins
All organic molecules contain: - answ✔💜💜💜✔Carbon
, In polar covalent bonding, electrons are ______ ______ between two atoms -
answ✔💜💜💜✔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? -
answ✔💜💜💜✔10
What organelles are involved in energy conversion? - answ✔💜💜💜✔Mitochondrion and
chloroplast
Two molecules contain the exact same elements but are arranged differently what is this called? -
answ✔💜💜💜✔Isomer
Why is one side of a water molecule practically negative while the other side is practically positive? -
answ✔💜💜💜✔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? -
answ✔💜💜💜✔Dehydration synthesis reactions
Which of the following dietary fats is considered to be the healthiest? - answ✔💜💜💜✔Unsaturated
cis fat
The structure of cholesterol is similar to the structure of: - answ✔💜💜💜✔Sex hormones
The graph is showing the differences in _____ between a chemical reaction with and without enzymes -
answ✔💜💜💜✔Activation energy
Which structure selectively regulates the transport of substances into and out of a planet cell? -
answ✔💜💜💜✔The plasma membrane
What is the role of the protein component of chromatin? - answ✔💜💜💜✔Something small and
charged, like Mg ion
