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EOC Review 1
EOC Review 1
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No sleep til EOC part 1
Flashcards
39 cards
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Practice quiz
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Questions
39
Answers
1
Which of the following conclusions is supported by the data?
The optimum pH of the enzyme is 6.6
Enzyme activity increases from pH 5.0 to 9.0
Enzyme activity is greater at pH 8.0 then 5.8
The optimum pH of the enzyme is 5.8
2
Which type of molecule encodes genetic information in Streptococcus pneumoniae?
lipids
nucleic acids
proteins
carbohydrates
3
What are the two most common elements in the human body?
Sodium and Iron
Hydrogen and Nitrogen
Carbon and Oxygen
Zinc and Sulfur
4
Which of the following elements are main components of a cell wall made of cellulose?
Nitrogen
Carbon
Calcium
Phosphorus
5
I am writing a paper on global warming. Which source would be most unbiased?
Website sponsored by environmental agency
research paper in a peer-reviewed journal
Telephone interview by an energy lobbyist
Article written by a journalist
6
Which is the best example of a population?
All unicellular organisms in a sample of pond water
All white-tailed deer on an island
All insects in North America
All bacteria in your stomach
7
Fructose, sucrose, and starch are all examples of
lipids
nucleic acids
proteins
carbohydrates
8
What is the average number of eggs laid in 5 days? (10,14,7,8,11)
50
25
10
5
9
When the pH of a stomach increases from 2 to 4, how does the H+ concentration change
Increases by a factor of 100
Decreases by a factor of 2
Decreases by a factor of 100
Increases by a factor of 2
10
100g of rice is burned until 5g remain. What percent from the original remains?
5%
50%
.5%
.05%
11
What unit of measurement is most efficient for measuring the volume of a pool?
cubic meters
cubic millimeters
square meters
square millimeters
12
Which element is the main component of all organic molecules?
carbon
hydrogen
nitrogen
water
13
What is the mean length of the 5 oysters? (4,5,1,4,6)
2
5
4
9
14
According to cell theory, are viruses considered living things?
No, because they can't adapt to their environment
No, because they're not composed of cells
Yes, because they can reproduce
Yes, because they're composed of cells
15
An experiment tests the effectiveness of cough syrup. Whats the independent variable?
Type of cough syrup
Flavor of cough syrup
Number of days people take syrup
Number of people taking cough syrup
16
Results of an experiment dont support a hypothesis. What should you do next?
DIscard results and repeat experiment
Reject hypothesis and assume it incorrect
Create new hypothesis and new experiment to test
Accept hypothesis and exclude data that doesnt fit
17
Sucrase speeds up the breakdown of sucrose. It is an example of which type of molecule?
disaccharide
nucleic acid
enzyme
hormone
18
Which level of organization best describe multiple species in a defined area?
Community
Organism
Population
Family
19
Barnyard grass, rice, corn, weeds, and deer in a defined area would be considered a(n)...
Population
Ecosystem
Organism
Community
20
Cations are __________ charged ions
neutrally
positively
negatively
describe isotopes
21
Which lab safety procedure is most important for a student working with bacterial cultures?
Using warm water to clean glassware
Wearing rubber gloves and a lab coat
Storing agar in a beaker
Recording data neatly in a notebook
22
For the quickest source of energy, a student should eat a food that contains a high % of
Lipids
Proteins
Nucleic Acid
Carbohydrates
23
What is the correct order from simplest to most complex
atom - organelle - cell - molecule - tissue - organ
atom - molecule - organelle - cell - tissue - organ
atom - molecule - cell - tissue - organelle - organ
organ - cell - organelle - tissue - molecule - atom
24
Which of the following is the most likely function of lipids?
to absorb water
to speed up chemical reactions
to encode the genetic information
to store energy
25
Which group of organic compounds contains fatty acids?
carbohydrates
lipids
nucleic acids
proteins
26
Whats the maximum number of covalent bonds a carbon atom can make with 1 or more hydrogen atoms
3
2
4
1
27
A scientific theory is based on experimental results that satisfy which criterion?
They can be replicated by others
Significance is supported by experts
Are absolute and can't be challenged
Are inconsistent with personal experience
28
Lead (Pb-208) is an isotope. How many neutrons does it have if its atomic number is 82?
82
208
126
164
29
Which of the following best describes the composition of a nucleotide?
carbon atom joined to hydrogen and three functional groups
five-carbon sugar, a phosphate group and a nitrogenous base
carbon atoms with a carboxyl group bonded to one end
a pair of six-carbon rings attached to each other
30
Which subatomic particle is not part of an atoms nucleus?
Electron
Proton
Neutron
Photon
31
Which of the following will most likely change when an enzyme is added to a reaction?
the products of a reaction
the pH of a reaction
the temperature of a reaction
the rate of a reaction
32
What unit of measurement is most appropriate for finding the mass of fungi in a test tube?
Kilometers
Kilograms
Milligrams
Millimeters
33
What units would a scientist use to measure the change in mass of plants?
pounds
liters
kilograms
day
34
What pH would have the greatest concentration of OH- ions?
pH: 11
pH: 9
pH: 4
pH: 1
35
Which of the following is not a type of organic molecule
Branched
Cyclic
Linear
Square
36
Amino acids make up which macromolecule?
Proteins
Nucleic Acid
Carbohydrate
Lipids
37
Scientific experimentation can likely answer which question about a bird population?
How does a baby bird recognize the food it can eat
Relationship between beak size and # of offspring produced
How does the type of food it eats affect offspring
Why does short beak produce more offspring than long beak?
38
Which of the following categories of macromolecules is correctly paired with 1 of its functions
carbohydrates—store genetic information
nucleic acids—digest dead cells
lipids—give quick energy to cells
proteins—provide structure in skin, hair, and nails
39
Which graph would you use to compare the avg. # of eggs per nest in 2 states
Line
Scatter
Bar
Pie
