Bio Module 1: Foundations of Biology Exam Review
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- Q1
The study of biology is important because it focuses on
the animals of the Earth
the interactions of all living things
the development of human forms
the functions of the human body
30s - Q2
John is performing an experiment to determine which fertilizer causes plants to grow taller, chemical or organic. What is the independent variable in this experiment?
type of fertilizer
height of plants
30s - Q3
John is performing an experiment to determine which fertilizer causes plants to grow taller, chemical or organic. What is the dependent variable in this experiment?
height of plants
type of fertilizer
30s - Q4
A scientist who is researching marshes observes that marsh grass, Spartina bakeri, grows to different heights at different locations in the marsh. If the scientist wants to find the reason for this difference, what is the correct first step?
Determine which technology would assist most in answering the question.
Conduct an experiment and change only one variable at a time.
Establish a control group for comparison.
Perform research and form a hypothesis based on knowledge of the marsh.
30s - Q5
In an experiment, this is a variable that remains the same or is unchanged.
independent variable
dependent variable
control variable
30s - Q6
Although scientific theories are based on strong evidence, they can change over time. Which of the following correctly explains why scientific theories change?
Scientists are often incorrect in their initial hypotheses, so the theory changes.
Scientists argue, re-examine, and consider new explanations to new data.
New theories require changes to the scientific process, so the theory changes as a result.
Theories are hypotheses that have gained support and change as the hypothesis changes.
30s - Q7
What must happen for scientific theories to be accepted as valid?
Scientific evidence must be reported, verified, and accepted by the scientific community.
A hypothesis must be upgraded with supporting experimental evidence.
The research team must apply for and receive federal funding based on several early tests.
Biological manufacturers must conduct clinical trials.
30s - Q8
Claims about new scientific breakthroughs often appear in the media. If such a claim is made in each of the following, which media source should be considered most reliable?
Peer-reviewed journals
Popular magazines
Newspaper advertisements
Internet websites
30s - Q9
A running company develops a new recovery shoe that is advertised to decrease foot pain when worn after a race. Which of the following evidence of this claim would the scientific community accept as the most reliable?
High-profile athletes supporting the claim in sports journals and magazines
A written description of the experiments used to support the claim
Disclosure of the ingredients of the product and their known side effects
Other scientists not associated with the product testing the claims
30s - Q10
Jeffrey works for an environmental safety group. Her group wants to answer the question "Why should we protect the environment?" Why is her group's research question flawed?
They are trying to answer an ethical question, not a scientific one.
They will never be able to determine a means of protecting plants and animals.
The question is based on their bias as members of an environmental group.
The study can only be based on observation with this question.
30s - Q11
Which of the following questions can be answered scientifically?
What can be done to stop erosion?
Can redirecting water runoff reduce erosion?
Is erosion control worth the financial costs?
Should we just let the river flow where it wants?
30s - Q12
The monomer of a carbohydrate is known as a
amino acid
DNA
monosaccharide
nucleotide
30s - Q13
Glucose and fructose are monosaccharides that have the same chemical formula, C6H12O6. However, they do not react the same chemically. Which of the following generalizations can explain this?
The atoms of monosaccharides are arranged differently, and the different shape gives each monosaccharide unique properties.
Monosaccharides serve different cellular functions, and they are only involved in reactions in which they are needed.
The atoms of monosaccharides are arranged similarly, but the monomers from which they are formed have different physical and chemical properties.
Monosaccharides have different properties, but the disaccharides they form when combined with other molecules will have the same properties.
30s - Q14
Which of the following best describes what happens to an enzyme after it catalyzes a chemical reaction?
It is unchanged and can be used again for the same chemical reaction.
It becomes chemically bonded to the products of the reaction.
Its shape changes, giving it different chemical and physical properties.
Its mass decreases since part of the molecule is used up.
30s - Q15
In the human stomach, chemical reactions take place in an acidic environment. Some of these reactions are catalyzed by enzymes. How would these enzymes most likely function in an environment where the pH was doubled?
The enzymes would not be able to function properly outside of their optimal pH range.
The enzymes would interfere with chemical reactions by bonding with the reactants.
The rate of the reactions that are catalyzed by the enzymes would double.
The rate of the reactions would increase as the pH is increased.
30s