themes in biology scientific process chemistry water, carbon, and ph cell structure 100 200 300 400...
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Exam 1 ReviewJeopardy!
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Themes in Biology
Scientific Process
ChemistryWater,
Carbon, and pH
Cell Structure
100 100 100 100 100
200 200 200 200 200
300 300 300 300 300
400 400 400 400 400
500 500 500 500 500
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Themes in Biology100
Q: What is the lowest level of biological organization that can be considered alive?
A: Cells
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Themes in Biology200
Q: Briefly describe the difference between emergent properties and reductionism.
A: Emergent properties are characteristics you can only see when
you look at a collection of parts working together. Reductionism is the opposite – a method of study that involves breaking a system into its parts and studying them
individually.
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Themes in Biology300
Q: Give an example of a structure that is correlated with its function.
A: Many possible examples.
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Themes in Biology400
Q: Name 1 similarity and 1 difference between prokaryotic and eukaryotic cells.
A: Similarities: Both have a cell membrane and DNA, Differences: Size
(prokaryotic are much smaller), eukaryotic have membrane-bound organelles and prokaryotic don’t
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Themes in Biology500
Q: Name the 3 things that are necessary for natural selection to occur in a population.
A: Variation between individuals, Some variation is heritable,
Differential survival and reproduction
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Scientific Process100
Q: If I wanted to know whether lifting weights at the gym lowered my risk of osteoporosis, what could be my correctly formatted hypothesis?
A: Something like “Weightlifting exercises reduce the risk of
osteoporosis.”
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Scientific Process200
Q: If I did an experiment to test whether eating yogurt decreased the frequency of stomachaches in children, what would be my dependent variable?
A: The number of stomachaches that the children had
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Scientific Process300
Q: If I did an experiment to test whether reading more books increased peoples’ scores on the COMPASS test, what would be my independent variable?
A: The amount of reading.
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Scientific Process400
Q: What is the difference between a control group (also called control treatment) and controlled variables?
A: The control group is a group that doesn’t get the treatment, or gets a
placebo treatment. Controlled variables are things that are the same about all
participants in the experiment (often age, gender, location, etc.)
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Scientific Process500
Q: Which of these is a correctly formatted prediction?
A. If eating blueberries prevents cancer, then fewer people will get cancer.
B. Eating blueberries prevents cancer.C. If eating blueberries prevents cancer, then cancer
will be prevented.D. If eating blueberries prevents cancer, then people
who eat the most blueberries will have the lowest rates of cancer.
E. If eating blueberries prevents cancer, then not eating blueberries causes cancer.
A: D. Lipids
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Chemistry100
Q: If a molecule has an atomic number of 7 and a mass number of 15, how many neutrons does it have?
A: 8 neutrons
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Chemistry200
Q: Which of the following are nonpolar molecules?
A. CO2
B. CH4
C. H2OD. NO3
A: B and D
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Chemistry300
Q: Which of these pairs of atoms would most likely form a covalent bond?
A.
B.
C.
A: C. (both of these atoms need 2 more electrons)
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Chemistry400
A: Ionic (Mg gives up 2 electrons and each of the 2 Cl
gains one)
Q: In MgCl2, Magnesium has atomic number 12, and Chlorine has atomic number 17. Is the bond between Mg and Cl covalent or ionic?
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Chemistry500
Q: Classify each of the following as an atom, ion, compound, molecule, or more than one of these.
A. H2O B. 14C C. MgCl2
A is a molecule and compound, B is an atom, C is a compound
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Water, Carbon, and pH100
Q: What causes water to be cohesive?
A: Water molecules stick to one another through hydrogen bonds.
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Water, Carbon, and pH200
A is correct.
Q: Solution A has [H+] of 2 mol/L and [OH-] of 0.5 mol/L.Solution B has [H+] of 0.3 mol/L and [OH-] of 1 mol/L.
A. Solution A is more acidic than solution B and has lower pH
B. Solution A is more acidic than solution B and has higher pH
C. Solution A is more basic than solution B and has lower pH
D. Solution A is more basic than solution B and has higher pH
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Water, Carbon, and pH300
A is correct – since the water molecules are moving faster, it is harder for them to stick to one
another.
Q: What happens to the hydrogen bonds in water as it gets warmer?
A. They are more likely to break (there are fewer)
B. They are more likely to form (there are more)
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Water, Carbon, and pH400
Q: What causes ice to float on top of liquid water?
A: When water freezes, the molecules form hydrogen bonds that keep them
farther apart, so ice is less dense than water.
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Water, Carbon, and pH500
Q: Why do we say that life is carbon based even though living things are made mostly of water?
A: Carbon forms many different kinds of molecules, which make many different kinds of living things
possible.
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Cell Structure100
Name one organelle that is found in prokaryotic cells.
A: Ribosomes
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Cell Structure200
Which of these is a function of the rough endoplasmic reticulum (ER)?
a.Synthesize lipidsb.Detoxify poisonsc.Modify proteinsd.Read mRNA transcripts and connect new polypeptides together from amino acidsC. Modify proteins (then ship them to the golgi apparatus)
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Cell Structure300
What is a glycoprotein, and what do they do?
A protein in the cell membrane that is connected to a carbohydrate chain.
It helps with cell recognition (e.g. blood type)
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Cell Structure400
Which type of cell junction is found only in plants?a. Gap junctionb. Plasmodesmatac. Desmosomed. Tight junctione. Scanning tunneling junction
b. Plasmodesmata (a, c, and d are in animals, and e is made up)
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Cell Structure500
Name one function of each of these types of fibers that make up the cytoskeleton (you can’t name the same function for all 3):
a. Microtubulesb. Intermediate filamentsc. Microfilaments
Microtubules provide “monorail” tracks for vesicles to move on, and they pull
chromosomes apart during cell division. Intermediate filaments shape the cell and are
more permanent than the other two. Microfilaments allow muscles to stretch and
contract.