BIO 121 FINAL EXAM (LATEST 2025/2026) | COMPLETE ACTUAL EXAM | QUESTIONS & 100%
VERIFIED CORRECT ANSWERS | OBJECTIVE ASSESSMENT | PRE ASSESSMENT INCLUDED |
GUARANTEED A+ | BRAND NEW UPDATE!
What is the hierarchy of life from largest to smallest? - ANSWER Biosphere-Ecosystem-
Community-Population-Organism-Organ system-Organ-Tissue-Cells-Organelle-Molecule-Atom
A current example of natural selection is - ANSWER The bacteria that has become drug
resistant
The usual process for the scientific method is: - ANSWER Observation-question-
hypothesis-prediction-experiment-results-conclusion
Starch is a reserve polysaccharide made up of _____ subunits - ANSWER Gluclose
Monosaccharides are to polysacharides as ______ are to _______ - ANSWER Amino acids;
proteins
All organic molecules contain: - ANSWER Carbon
In polar covalent bonding, electrons are ______ ______ between two atoms - ANSWER
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? - ANSWER 10
, What organelles are involved in energy conversion? - ANSWER Mitochondrion and
chloroplast
Two molecules contain the exact same elements but are arranged differently what is this
called? - ANSWER Isomer
Why is one side of a water molecule practically negative while the other side is practically
positive? - ANSWER 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? - ANSWER
Dehydration synthesis reactions
Which of the following dietary fats is considered to be the healthiest? - ANSWER
Unsaturated cis fat
The structure of cholesterol is similar to the structure of: - ANSWER Sex hormones
The graph is showing the differences in _____ between a chemical reaction with and without
enzymes - ANSWER Activation energy
Which structure selectively regulates the transport of substances into and out of a planet
cell? - ANSWER The plasma membrane
proteins - ANSWER Usually, enzymes are ________.
steroids
proteins
,fats
chemical reactions
sucrase - ANSWER Which component of the following reaction is the enzyme?
sucrose + sucrase + water → sucrase + glucose + fructose
fructose
glucose
sucrase
sucrose
sucrose - ANSWER Which component of the following reaction is the substrate?
sucrose + sucrase + water → sucrase + glucose + fructose
sucrose
glucose
fructose
sucrase
An enzyme's function depends on its three-dimensional shape. - ANSWER Which one of
the following is TRUE?
Enzymes emerge changed from the reactions they catalyze.
An enzyme's function depends on its three-dimensional shape.
Enzymes work generally on a broad range of substrates.
Enzymes are used up in chemical reactions.
, keeping someone from parking by parking in their designated spot - ANSWER Which one of
the following is most similar to the mechanism of an enzyme inhibitor?
keeping someone from parking by parking in their designated spot
driving the wrong way on a one-way street
changing the tires on a car
forgetting to put a cap back on a pen
metabolism - ANSWER The sum total of all the chemical reactions that occur in organisms
is called ________.
conservation of energy
metabolism
cellular synthesis
hydrolysis
decreasing activation energy - ANSWER Enzymes increase the rate of a reaction by
________.
contributing electrons to the reaction
changing the pH of the environment
decreasing activation energy
increasing the temperature of the substrates
Enzymes catalyze specific reactions - ANSWER Which one of the following is TRUE?
VERIFIED CORRECT ANSWERS | OBJECTIVE ASSESSMENT | PRE ASSESSMENT INCLUDED |
GUARANTEED A+ | BRAND NEW UPDATE!
What is the hierarchy of life from largest to smallest? - ANSWER Biosphere-Ecosystem-
Community-Population-Organism-Organ system-Organ-Tissue-Cells-Organelle-Molecule-Atom
A current example of natural selection is - ANSWER The bacteria that has become drug
resistant
The usual process for the scientific method is: - ANSWER Observation-question-
hypothesis-prediction-experiment-results-conclusion
Starch is a reserve polysaccharide made up of _____ subunits - ANSWER Gluclose
Monosaccharides are to polysacharides as ______ are to _______ - ANSWER Amino acids;
proteins
All organic molecules contain: - ANSWER Carbon
In polar covalent bonding, electrons are ______ ______ between two atoms - ANSWER
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? - ANSWER 10
, What organelles are involved in energy conversion? - ANSWER Mitochondrion and
chloroplast
Two molecules contain the exact same elements but are arranged differently what is this
called? - ANSWER Isomer
Why is one side of a water molecule practically negative while the other side is practically
positive? - ANSWER 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? - ANSWER
Dehydration synthesis reactions
Which of the following dietary fats is considered to be the healthiest? - ANSWER
Unsaturated cis fat
The structure of cholesterol is similar to the structure of: - ANSWER Sex hormones
The graph is showing the differences in _____ between a chemical reaction with and without
enzymes - ANSWER Activation energy
Which structure selectively regulates the transport of substances into and out of a planet
cell? - ANSWER The plasma membrane
proteins - ANSWER Usually, enzymes are ________.
steroids
proteins
,fats
chemical reactions
sucrase - ANSWER Which component of the following reaction is the enzyme?
sucrose + sucrase + water → sucrase + glucose + fructose
fructose
glucose
sucrase
sucrose
sucrose - ANSWER Which component of the following reaction is the substrate?
sucrose + sucrase + water → sucrase + glucose + fructose
sucrose
glucose
fructose
sucrase
An enzyme's function depends on its three-dimensional shape. - ANSWER Which one of
the following is TRUE?
Enzymes emerge changed from the reactions they catalyze.
An enzyme's function depends on its three-dimensional shape.
Enzymes work generally on a broad range of substrates.
Enzymes are used up in chemical reactions.
, keeping someone from parking by parking in their designated spot - ANSWER Which one of
the following is most similar to the mechanism of an enzyme inhibitor?
keeping someone from parking by parking in their designated spot
driving the wrong way on a one-way street
changing the tires on a car
forgetting to put a cap back on a pen
metabolism - ANSWER The sum total of all the chemical reactions that occur in organisms
is called ________.
conservation of energy
metabolism
cellular synthesis
hydrolysis
decreasing activation energy - ANSWER Enzymes increase the rate of a reaction by
________.
contributing electrons to the reaction
changing the pH of the environment
decreasing activation energy
increasing the temperature of the substrates
Enzymes catalyze specific reactions - ANSWER Which one of the following is TRUE?
