Biology Midterm Lecture
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Biology Midterm Lecture
Study guide via flashcards for Biology
The instructions for growth and development are in _______.
A mutation is a change in ________.
The ability to acquire, store, transfer, or utilize energy is called ________.
The ability to maintain a constant internal environment is _________.
Which is the smallest unit of life?
Which of the following is defined as “all of the various species living in the same area”?
Organisms that are producers obtain their energy from ______.
The genus portion of a scientific name when printed _________.
always capitalized, always italicized
A scientific name consists of ___________________.
genus name and species name
A scientific principle is a(n) _____________.
synthesis of several explanations of many observations
Of the following, which is called an “educated guess”?
In a scientific experiment, conditions that could affect the outcome of the experiment, but do not because they are held constant, are called _________.
In order to arrive at a solution to a problem, a scientist usually proposes and tests __________.
An experimenter will not do which of the following?
manipulates dependent variables
The control in an experiment
allows a standard of comparison for the experimental group
Science is based on ________.
A process that is found only in plants and some bacteria is __________.
Most organisms exhibit this characteristic when trying to maintain constant environments.
The capacity to acquire, store, and use energy is known as __________.
The process in which one generation replaces another is __________.
Today, scientists usually agree that there are _____ kingdoms.
Corn belongs to which of the following kingdoms?
Molds and mildew belong to __________.
Four of the five answers listed below are necessary characteristics to the life of an individual. Select the exception:
Four of the five answers listed below are parts of the scientific method. Select the exception:
Four of the five answers listed below are taxonomic categories. Select the exception:
Four of the five listed below are characteristics of life. Select the exception:
Four of the five answers listed below are names of kingdoms. Select the exception:
The nucleic acid core of a virus may be composed of ______________________.
DNA or RNA
Tissues are composed of _______.
A ____________ obtains carbon and energy from the remains, products or wastes of organisms.
Viruses have a _______ and a _____________.
DNA or RNA core; protein coat
Which of the following are a group of viruses that infect bacterial cells?
Viruses are pathogenic.
The lytic cycle of viral multiplication is a longer cycle than the lysogenic cycle.
If a form of a trait improves chances for surviving and reproducing in a given environment, it is a(n) ________ trait.
The capacity to evolve is based on variations in heritable traits, which originally arise through ______.
Which of the following is the most inclusive?
Animals are all _______.
The compound most associated with energy transfer in living organisms is _______.
A community and its physical and chemical environment constitute _______________.
The Archaebacteria and Eubacteria are _________.
Inductive logic (reasoning) is a pattern of thinking by which an individual derives a general statement from specific observations.
Organs are composed of tissues, which are composed of cells. This is an example for which characteristic of life?
Living things are organized.
Which sequence is correct in regards to the different levels of biological organization?
The genus name for human beings is ____________.
Which classification category will have the most different types of animals?
Which sequence of classification categories is in the proper order?
species, genus, family, order, class, phylum, kingdom
Which of the following is made up of a combination of the others?
The negative subatomic particle is the...
The positive subatomic particle is the...
The atomic number refers to the...
number of protons in an atom
The atomic mass of an atom is determined by the number of...
neutrons and protons
Magnesium has an atomic number of 12 and an atomic mass number of 24. How many electrons are its third energy shell?
How many protons are in an atom of Magnesium?
How many neutrons are in an atom of Magnesium?
What is the maximum number of electrons that can be found in the first shell of an atom?
Sodium has eleven protons. How many electrons does it have in its outermost shell?
atoms of the same element that differ in the number of neutrons
A molecule is...
a combination of two or more atoms
A compound is...
a chemical combination of atoms whose proportions do not vary
The chemical symbol for Iodine is...
The chemical symbol for Potassium is...
The chemical symbol for Magnesium is...
Which of the following is true of an ion?
It may be positive or negative
A sharing of electrons between atoms results in which of the following bonds?
A bond formed due to the gain and loss of electrons between atoms is an...
Which of the following bonds is most easily broken?
the amount of heat given off by an object
Water's capacity to resist rupturing due to the presence of hydrogen bonding is termed...
Polar substances that dissolve in water are said to be...
Water is a...
Substances with a pH between 0 and 7 are...
Substances with a pH between 7 and 14 are...
refers to the hydrogen ion concentration of a substance in solution
Cellular pH is kept near a value of 7 because of...
How do hydrophobic molecules react with water?
repelled by it
Characteristics of water:
An intermingling of two or more element in proportions that can vary...
Any molecule or ion that dissolves in some solvent...
A splendid tracer used in many research techniques and as cancer destroying therapy...
A fundamental form of matter that can not be broken down into something different by ordinary means...
pH of Pure water...
pH of Milk of magnesia...
pH of Stomach (gastric) fluid...
pH of Tomatoes...
The bond between the atoms of table salt...
The bond type holding several molecules of water together...
The bond formed between an oxygen atom and two hydrogen atoms in a molecule of water in which electrons are shared unequally...
They bond between the hydrogen atoms of hydrogen gas in which electrons are shared equally...
A ____ is a unit of matter, which occupies the atomic nucleus and has a mass but no electrical charge.
A Chlorine atom has ____ electrons in its outermost shell.
Water-loving substances are termed _____ while water-fearing substances are termed hydrophobic.
A solution with a pH of 10 is ____ times as basic as one with a pH of 8.