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Biology 1610 FINAL - SLCC Kristen Taylor Questions and Answers
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Biology 1610 FINAL - SLCC Kristen Taylor
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Biology 1610 FINAL - SLCC KristenTaylor
If the atomic mass of K is 39, how many neutrons does the most common isotope
have? - answer20
Which of the following has 17 protons in its nucleus? - answerCl
Which of the following elements DOES NOT make up approximately 96% of living
organisms? (select all that apply) - answerCl
Pb
Ca
As
Match the biomolecule or monomer with its definition, bond type, example or
polymer/monomer description:
Polysaccharide Steroids
amino acids
phospholipids
DNA - answerheld together with glycosidic bonds
have an amino and a carboxyl functional group on this molecule
amphipathic molecules that form some types of cell membranes
made from nucleotides bonded together with phophodiester bonds
You are monitoring the pH of a beaker full of liquid. Into this beaker of liquid you slowly
pour HBr (which dissociates into H+ and Br-), however, to your surprise you note that
the pH of this solution does not change. What must this solution have in it? - answerA
Buffer
Which of the following are true about Carbohydrates? Choose all that apply -
answerThey are held together with glycosidic bonds
They can form highly branched chains called starch
If two heart muscle cells are connected with flexible proteins called Cadherins, this
would be an example of what type of cell junction? - answerA Desmosome
Peroxisome - answerBreakdown of large chain fatty acids and also building of certains
types of lipids
Actin (Microtubules), Microfilaments, and Intermediate Filaments - answerGive the cell
shape (cytoskeleton) and allow cellular movement
,Chloroplasts - answerHave their own DNA and thought to arise though endosymbiosis
Rough ER - answerMakes proteins destined for membranes or secretion
Golgi Apparatus - answerHas a cis- medial and trans- face, packs and sorts stuff
coming from the ER
Nucleus - answerHolds the DNA for the whole cell in structures called Chromosomes
Smooth ER - answerCa2+ storage, detoxifies drugs and alcohol, makes steroids
Nucleoid - answerRegion in a prokaryotic cell where DNA is housed
lysosome - answera membrane-bound organelle that is filled with enzymes that break
down things
cytoskeleton - answermade up of protein structures such as microtubules,
microfilaments and intermediate filaments
steroid - answera molecule that is mostly hydrocarbons with a backbone of three six
carbon rings and a five carbon ring
structural isomers - answertwo or more molecules that have the same molecular
formula but have different shapes
cation - answeran atom that has lost electrons to stabilize its valence shell
amino acids - answermonomers of a protein polymer
hydrogen bond - answera weak magnetic attraction between partial charges found on
polar covalent molecules
adhesion - answerthe ability of a substance to stick to other kinds of substances
control group - answerin physical experimentation, no variable is changed during testing
evolution - answeran emergent property of a population
How many covalent bonds can a phosphorous atom make in order to stabilize its
valence shell? - answer5
Which of the following is an example of a dehydration reaction? - answerGlycerol + 3
fatty acids --> Triglyceride
, How many electron shells (energy levels) does Cl have in its non-ionized state? -
answer3
The evolution of eukaryotic cells most likely involved ___________ -
answerendosymbiosis of an aerobic bacterium in a larger host cell-the endosymbiont
evolved into mitochondria.
Which of the following functional groups are NOT usually found in carbohydrates?
(select all that apply) - answerSulfhydryl (thiol)
Phosphate
Order the following levels of biological hierarchy from least inclusive (most exclusive) to
most inclusive (least inclusive).
1 (least inclusive)
2
3
4 - answeratom
cell
organism
community
Which of the following is the correct way hydrogen bonds would form between water
molecules? - answerC
Which of the following are true about ionic bonds? Choose all that apply. - answerthey
are strong magnetic attractions between oppositely charged ions
KCl is an example of a molecule that is held together by them
An ion with a +2 charge has 18 electrons. What is the identity of the ion? -
answerCalcium ion
The following molecules are examples of what type of isomer? - answerStructural
What would P-32 become if 2 of its neutrons radioactively decayed - answerCl-32
Which of the following are examples of lipids? Choose all that apply. - answerSteroids
Triglycerides
If you have a mole of Oxygen atoms, how many Oxygen atoms do you have? -
answer6.02 x 10^23
Which of the following are polymers? Choose all that apply. - answerDNA
cellulose
chitin
protein
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