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Biology Ch. 1-3, 15.3
Terms in this set (39)
In which of the following situations would it be helpful for you to have at least a basic understanding of biology?
1) You are told that you have high blood pressure.
2) You have to vote and one of the candidates is very much against stem cell research.
3) You're on a jury in a case where DNA evidence is important.
4) You purchase some land and discover there is an endangered frog living in a pond on it.
What are the four main features of life?
metabolism, inheritance, evolution, diversity
What is meant by "inheritance' in biology?
the transfer of biological information from parent to offspring
What is evolution in biology?
all organisms are related and change through time
In evolution, why is it important that individuals vary from each other?
Variation allows some to do better than others, so those variations are selected for
Put the following taxonomic groups in order from largest to smallest.
Phylum, class, order, family, genus, species
Species that evolved in the recent past have a more recent common ancestor. As a result, they have more _________________________________.
Biology can be defined as the study of:
Morals are your personal beliefs, and ethics are a set of standards by which a particular group or community decides to regulate its behavior. True or False.
Which of the following would be a correctly written scientific name for a house cat, and which word is the genus?
Felis catus, Felis
What are the four macromolecules common to living things?
lipids, carbohydrates, proteins, nucleic acids
Covalent bonds form when one atom ___________ its _____________with another atom
Sodium chloride(NaCl) crystals (table salt) form as a result o
Chemical bonding comes about as atoms "seek" their _______ energy state.
What are the basic building block of every physical thing?
The shape of a protein is a critical factor in its function. T or F
A fatty acid that has double bonds is called _________.
These types of fatty acids are created through hydrogenation of unsaturated fatty acids to keep it from going bad. They are present in many snack foods to keep them fresher longer, have a longer shelf life and have a less greasy feel. Consuming too many may lead to heart disease.
trans fatty acids
List the four types of complex carbohydrates.
starch, glycogen, cellulose, chitin
What makes up proteins?
Which sequence is most typical in the scientific method?
observe, hypothesize, predict, test, evaluate results
If you were going to study the effects of a certain fertilizer on plant growth, which list of variables would you most likely want to control (keep constant)?
plant type, soil type, water, light
Which of the following would a good scientist NOT do?
collect only data that supports his or her own idea
Why is it important to repeat experiments?
to make sure the predictions hold up in multiple situations
A theory must be supported by:
Louis Pasteur's experiment about the source of life disproved which hypothesis that explained the source of life in a sterile flask and sterile broth?
Every event in nature has a cause, and a scientist can learn about causes by observing the effects that occur.
T or F
Testability is the idea that effects in the natural world all have natural causes, rather than supernatural ones. T or F
If a scientist does an experiment and gets a result, but no other scientists are able to repeat the experiment and get the same result, what does that mean?
Something about the hypothesis, prediction, or experimental design is wrong in the first experiment
____________________________ has no scientific bases and there are no controlled experiments or facts behind it. An example is astrology.
Science depends on ___________________.
If I tell you the potion I have made from bee pollen will cure cancer, but I don't provide any evidence of this, this is an example of quackery. T or F
The purpose of a control group in an experiment
for comparison to the other test groups
In science, nothing is ever finally proven. T or F
What is the difference between a "theory" as the word is commonly used, and a scientific theory?
An everyday theory is a guess and a scientific theory has been repeatedly tested.
What is your best defense against quackery?
be skeptical and get your info from a reliable source
This is information that one gets from direct observation, from experience, or from the results of experiments and other tests of hypotheses.
A good scientific explanation is generalizable. What does that mean?
It applies to one specific situation or place
What are the three main features of science that help to distinguish science from other forms of knowledge?
generality, testability, empirical evidence
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