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