WorksheetsBio Basics Review
Total questions: 74
Worksheet time: 37mins
Fill in the blank: _______ is an objective, verifiable observation.
Fact
Opinion
Assumption
Belief
Fill in the blank: _______ is a statement based on repeated experimental observation that describes an aspect of the world.
Principle
Hypothesis
Assumption
Prediction
Fill in the blank: _______ is a broad concept or principle that describes how something occurs in nature.
Law
Theory
Hypothesis
Experiment
Fill in the blank: _______ is an explanation of an observed phenomenon based on research.
Theory
Hypothesis
Observation
Experiment
Fill in the blank: _______ describes qualities using the senses.
Qualitative
Quantitative
Hypothetical
Numerical
Fill in the blank: _______ uses numbers and measurements to quantify something.
Quantitative
Qualitative
Descriptive
Subjective
What is deliberately changed or manipulated in an investigation is called the _________?
independent variable
dependent variable
control group
constant
What changes in response to the independent variable and is measured is called the _________?
dependent variable
control variable
constant
hypothesis
Fill in the blank: Aspects of an experiment that are kept constant or consistent are called _________.
constants (controlled variables)
variables (changing factors)
hypotheses (predictions)
results (outcomes)
Fill in the blank: The group(s) being tested in an experiment are called the _________.
experimental group
control group
placebo group
sample group
Fill in the blank: The standard or 'normal' group used for comparison in an experiment is called the _________
control group
experimental group
variable group
treatment group
Fill in the blank: The application of scientific discoveries to meet human needs and goals through the development of products and processes is called _________.
technology
biology
philosophy
art
Fill in the blank: Applying scientific and mathematic principles to solve problems is called _________.
engineering
painting
cooking
dancing
Define science. Fill in the blank: Science is _____________.
A study of the natural world based in experimentation and thus, supported by evidence.
A collection of untested beliefs and opinions.
A set of random guesses about the universe.
A fictional story about the world.
Give an example of a hypothesis in the correct format. Fill in the blank: If a sunflower is exposed to sunlight for 8 hours a day, then _____________.
it will grow taller than sunflowers exposed to less light.
it will not need water to survive.
it will turn blue in color.
it will stop growing completely.
Explain the relationship between independent and dependent variables within a hypothesis. Fill in the blank: The independent variable is the _______ and the dependent variable is the _______.
cause; effect
effect; cause
result; reason
outcome; initiator
An observation is a statement based on what is seen or measured, while an inference is a conclusion drawn from observations. Which of the following best differentiates an observation from an inference?
An observation is what you notice directly, while an inference is a conclusion you draw from those observations.
An observation is always a guess, while an inference is always a fact.
An observation is a prediction about the future, while an inference is a measurement.
An observation is based on opinions, while an inference is based on measurements.
The difference between accuracy and precision is that:
Accuracy refers to how close measurements are to the true value, while precision refers to how close measurements are to each other.
Accuracy and precision both mean the same thing in measurement.
Precision refers to how close measurements are to the true value, while accuracy refers to how close measurements are to each other.
Accuracy is not important if data is precise.
The general steps in designing and conducting an experiment include:
Identifying a problem, forming a hypothesis, designing the experiment, collecting data, analyzing results, and drawing conclusions.
Guessing the outcome, collecting random data, and writing a report.
Starting with data analysis, then forming a hypothesis, and finally designing the experiment.
Choosing a topic, writing a story, and presenting it to an audience.
Fill in the blank: The first step in designing and conducting an experiment is to ________ and ask questions.
Make observations
Collect data
Analyze results
Draw conclusions
Fill in the blank: The second step in designing and conducting an experiment is to conduct background research to see what has already been found and ________ for the experiment.
define purpose
collect data
write a report
analyze results
Fill in the blank: The third step in designing and conducting an experiment is to ________.
Construct a hypothesis
Analyze the data
Collect materials
Write a conclusion
Fill in the blank: The fourth step in designing and conducting an experiment is to test the ________ in an experiment.
hypothesis
result
variable
procedure
Fill in the blank: The fifth step in designing and conducting an experiment is to analyze the ________ collected.
data
hypothesis
materials
procedure
Fill in the blank: The sixth step in designing and conducting an experiment is to draw conclusions and ________ them to others.
communicate
ignore
hide
withhold
Give an example of a scientific investigation design, with appropriate constants and variables (IV and DV). Anh observes that her brother, who is a swimmer, can hold his breath for a really long time. She wonders if other types of athletes can hold their breath for just as long. She decides to conduct an investigation of different types of athletes and how long they can hold their breath. Fill in the blanks: - The independent variable (IV) is ________. - The dependent variable (DV) is ________. - One example of a constant is ________.
IV: type of athlete (which sport they play), DV: how long they can hold their breath, Constant: age of athletes (other acceptable answers: temperature and conditions where the data is collected, pre-existing health conditions, physical activities or amount of rest done prior to collecting the data)
IV: how long they can hold their breath, DV: type of athlete (which sport they play), Constant: the number of athletes tested
IV: the number of athletes tested, DV: the type of sport, Constant: how long they can hold their breath
IV: age of athletes, DV: temperature and conditions, Constant: type of athlete (which sport they play)
What is the first step in the technological design process?
Define/identify the problem or need.
Test the prototype.
Select the best solution.
Communicate the results.
When designing a solution for a problem, what criteria must be considered during the design process?
Time, budget, and materials (availability, durability, appropriateness, etc.)
Color preferences and font styles only
Personal opinions of the designer
Ignoring constraints and focusing only on aesthetics
What is the step in the technological design process where you build the solution and test it out?
Implement the design by building the solution and testing it out.
Brainstorm possible solutions and select the best one.
Identify the problem and define the criteria for success.
Communicate the results to stakeholders.
What is the final step in the technological design process?
Evaluate the end result.
Brainstorm possible solutions.
Develop a prototype.
Identify the problem.
You may have to circle back to the design phase after or during the implementation step in the technological design process.
True
False
Be able to conduct a scientific experiment using appropriate laboratory equipment and making precise _________
measurements
predictions
guesses
assumptions
Be able to organize data from an experiment in a chart, table, or ________, and interpret it.
graph
story
equation
paragraph
Analyze data with respect to a ________ and draw an appropriate conclusion.
hypothesis
variable
sample
theory
Be able to select the most appropriate hypothesis and identify ________ when given the description of a scientific investigation.
variables
conclusions
theories
predictions
Fill in the blank: ______ is anything that has mass and occupies space.
Matter
Energy
Light
Sound
Fill in the blank: ______ is the smallest part of an element that still has the properties of that element.
Atom
Molecule
Electron
Proton
Fill in the blank: The most basic unit of life is a ______.
Cell
Atom
Tissue
Organ
Fill in the blank: ______ is a measure of how difficult it is to stretch or break the surface of a liquid/resist an external force.
Surface tension
Viscosity
Density
Buoyancy
Fill in the blank: A ______ is a uniform homogenous mixture of two or more substances.
Solution
Compound
Element
Suspension
Fill in the blank: ______ is what gets dissolved in a solution.
Solute
Solvent
Mixture
Compound
Fill in the blank: Solvent = ________
What does the dissolving in a solution
What gets dissolved in a solution
A type of solute
A solid in a mixture
Fill in the blank: Hydrophilic = ________
"Water loving"; a substance that has an affinity for water
"Water fearing"; a substance that repels water
A substance that dissolves only in oil
A substance that is neutral to water
Fill in the blank: Hydrophobic = ________
Water fearing; a substance that does not have an affinity for water
Water loving; a substance that readily dissolves in water
A substance that increases the hydrogen ion concentration of a solution
A substance that acts as a buffer in acidic solutions
List the six elements necessary for life and give examples of three molecules that contain those elements.
C, H, O, N, P, S. Examples: H2O, CO2, O2.
Na, Cl, K, Mg, Fe, Zn. Examples: NaCl, KCl, MgO.
He, Ne, Ar, Kr, Xe, Rn. Examples: HeO, NeO, ArO.
Al, Si, Cu, Ag, Au, Pb. Examples: Al2O3, SiO2, CuO.
List the levels of organization that make up an organism, starting with an atom and ending with an organism.
Atom → Molecule → Organelle → Cell → Tissue → Organ → Organ system → Organism.
Atom → Organelle → Molecule → Cell → Tissue → Organ system → Organ → Organism.
Atom → Molecule → Cell → Organelle → Tissue → Organ system → Organism → Organ.
Atom → Molecule → Organelle → Tissue → Cell → Organ → Organ system → Organism.
Differentiate between polar and nonpolar molecules.
Polar = unequal distribution of charges; polar molecules typically dissolve in water because water is also polar. Nonpolar = no separation of charge.
Polar = equal distribution of charges; polar molecules do not dissolve in water. Nonpolar = unequal distribution of charge.
Polar = no charges present; nonpolar = charges are always present.
Polar = always ionic; nonpolar = always covalent.
The properties of water that make it such a unique molecule include:
Cohesion, high specific heat, polarity, and ability to dissolve many substances
Lack of polarity and inability to form hydrogen bonds
Low specific heat and inability to dissolve substances
Non-cohesive nature and low surface tension
What property of water makes water molecules stick to each other, creating a high surface tension in water?
Cohesion
Adhesion
Evaporation
Condensation
What property of water allows water molecules to stick to other types of molecules, allowing for capillary action in plants?
Adhesion
Cohesion
Evaporation
Condensation
What property of water means it takes a lot of energy to change the temperature of water, so its temperature doesn’t fluctuate much and acts as a buffer to climate changes?
High specific heat
Low density
High surface tension
Low boiling point
What property of water makes it less dense as a solid, so ice floats on liquid water, making it possible for life to exist under frozen surfaces?
Less dense as a solid
More dense as a solid
High boiling point
Low surface tension
What property of water makes it the universal solvent because it dissolves more substances than any other liquid?
Universal solvent
High boiling point
Low density
High viscosity
Fill in the blank: Large organic molecules that make up all living things are called ________.
Macromolecules
Ions
Minerals
Isotopes
Fill in the blank: A small basic sub-unit that makes up polymers is called a ________.
Monomer
Polymer
Enzyme
Lipid
Fill in the blank: A larger, more complex structure made of monomers is called a ________.
Polymer
Atom
Ion
Molecule
Fill in the blank: A single sugar molecule, the monomer of carbohydrates, is called a ________.
Monosaccharide
Polysaccharide
Amino acid
Nucleotide
Fill in the blank: A larger sugar molecule, the polymer of carbohydrates, is called a ________.
Polysaccharide
Monosaccharide
Amino acid
Nucleotide
What is the monomer of carbohydrates?
Monosaccharide
Amino acid
Nucleotide
Fatty acid
What is the polymer of carbohydrates?
Polysaccharide
Amino acid
Nucleotide
Fatty acid
What is the monomer of lipids?
Fatty acids (but no true monomer)
Amino acids
Nucleotides
Monosaccharides
What is the polymer of lipids?
Triglycerides
Amino acids
Nucleic acids
Monosaccharides
What is the monomer of proteins?
Amino acids
Fatty acids
Nucleotides
Monosaccharides
What is the polymer of proteins?
Polypeptide
Monosaccharide
Nucleotide
Fatty acid
What is the monomer of nucleic acids?
Nucleotides
Amino acids
Fatty acids
Monosaccharides
What is the polymer of nucleic acids?
Nucleic acids
Amino acids
Fatty acids
Monosaccharides
What is the main function of CARBS?
Energy storage molecule (short term) as well as structure, signaling, transport
Long-term energy storage and insulation
Catalyzing biochemical reactions
Carrying genetic information
What is the main function of LIPIDS?
Energy storage molecule (long term) as well as insulation, cushioning, structure and protection
Catalyze biochemical reactions in the body
Store genetic information and transmit it to offspring
Provide immediate energy for cellular processes
What is the main function of PROTEINS?
Run your body and pretty much do everything else: enzymes, hormones, transport, muscles, movement, antibodies, receptors
Store genetic information and transmit it to offspring
Provide long-term energy storage and insulation
Supply immediate energy for cellular activities
What is the main function of NUCLEIC ACIDS?
Informational molecule; the instructions for making proteins; store, transmit, and express your genetic information; they make you 'YOU'
Provide structural support to cells and tissues
Serve as the main source of energy for cellular processes
Act as catalysts to speed up chemical reactions
Provide an example of a carbohydrate (carb).
Sugars (like glucose) and starches
Olive oil
Chicken breast
Cheddar cheese
Provide an example of a lipid.
Fats, oils, phospholipids, steroids
Glucose, fructose, sucrose, lactose
Hemoglobin, insulin, collagen, keratin
DNA, RNA, ATP, cAMP
Provide an example of a protein.
Hemoglobin, insulin, collagen
Glucose, starch, cellulose
Cholesterol, triglyceride, phospholipid
DNA, RNA, ATP
Provide an example of a nucleic acid.
DNA and RNA
Glucose and Fructose
Hemoglobin and Myoglobin
Cholesterol and Triglyceride
