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Semester 1 Review
Mr. Sutton Honors Biology Semester 1 Review
100
Biology
Not Applicable
01/22/2005

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Cards

Term
Response
Definition
Living Things adjust to a stimulus by a reaction called a ___________.
Term
Hypothesis
Definition
A testable explanation for a question or problem is a _________.
Term
Independent Variable
Definition
The single factor that is altered in an experiment is the __________.
Term
Every
Definition
Its flow through ecosystems determines how organisms interact and power all life processes.
Term
Control
Definition
The part of an experiment in which all conditions are kept the same.
Term
Variable
Definition
The factor being tested in an experiment.
Term
Decay by Bacteria
Definition
Nitrogen is released to the Abiotic parts of the biosphere from the process death and ________.
Term
Living & Nonliving things
Definition
Ecology is the study of relationships among ________.
Term
Carbon Dioxide
Definition
"In the carbon cycle, in what form are carbon atoms generally returned to the atmosphere?"
Term
Autotrophs
Definition
Organisms that use the Sun's energy to make food are called ___________.
Term
Community
Definition
A collection of interacting populations is called a ____________.
Term
Food Web
Definition
A network of interconnected food chains is called a ___________________.
Term
Temperature & Precipitation
Definition
Location of biomes are usually determined by __________.
Term
Secondary Succession
Definition
"After a community is disrupted by large scale events, such as forest fires, a new community is established through the process of ___________."
Term
Tropical Rain Forest
Definition
Which terrestrial biome houses the most diversity?
Term
The regular progression of species replacement in an environment.
Definition
Succession is _______________.
Term
an estuary
Definition
The body of water where freshwater from a river mixes with salt water is called ___________.
Term
Temperate Forest
Definition
Land populated with broad-0leaved hardwood trees that lose their leaves annually is called __________.
Term
S
Definition
A population that grows until it reaches carrying capacity usually has the shape of a(n) ______________.
Term
Emigration
Definition
The movement of individuals from a population is __________________.
Term
Food
Definition
Which of the following factors is density-dependent?
Term
Density-independent
Definition
"Storms, cold temps, & drought are all ______________."
Term
Over her lifetime
Definition
A female's fertility rate is the number of offspring she produces ____________________.
Term
Exponential growth
Definition
A J-shaped growth curve indicates a population is experiencing __________________.
Term
Habitat Loss
Definition
The major threat to biodiversity is ____________.
Term
Habitat Degradation
Definition
Water & air pollution are examples of _______________.
Term
Capture of Endangered Species
Definition
Reintroduction programs involve the __________________.
Term
Decreased species diversity within an area
Definition
Habitat fragmentation often leads to ________________.
Term
CFC's
Definition
The reduction of the ozone layers is caused by ______________.
Term
American Bald Eagle
Definition
"DDT was effective in killing insects. However, which organism was endangered most by its use."
Term
Electron Clouds
Definition
Electrons move about the nucleus of an atom in regions called _____________________.
Term
13
Definition
A very strong base might have a pH of ________.
Term
45
Definition
"The total number of atoms in a molecule of sucrose, C12H22O11, is ______."
Term
Covalent Bond
Definition
"A ________ is formed which 2 atoms share electrons, such as with H and O in water."
Term
Atoms
Definition
Which are the building blocks of all objects?
Term
H+ ions
Definition
An acid is any substance what forms _________ in water.
Term
Eukaryotic
Definition
"If a cell contains a nucleus, it must be ________."
Term
Ribosomes
Definition
Proteins are assembled by which organelles?
Term
Vacuole
Definition
"A membrane-bound, fluid filled sac (providing temporary storage of food, enzymes, or waste products) is called a _________."
Term
Mitochondria
Definition
This organelle produces a useable form of energy in the form of ATP for the cell.
Term
Electron Microscope
Definition
The microscope that allowed scientists to vies molecules.
Term
Chromosomes
Definition
"When a cell is ready to reproduce, its DNA is paced into _________."
Term
Hypertonic
Definition
Water moves out of a cell if the cell is placed in a __________ solution.
Term
volume; surface area
Definition
"As a cell grows, its ___________ increases more than its _______."
Term
Interphase
Definition
The longest phase of the cell cycle is _____________.
Term
Mitosis
Definition
The division of the nucleus is called __________.
Term
Mitosis
Definition
Which of the following does not control the cell cycle?
Term
DNA
Definition
Chromosomes are made of _________.
Term
Chlorophyll
Definition
A green pigment that raps energy from sunlight is ___________.
Term
2 Phosphate groups
Definition
Energy is released from ATP when the bond is broken between ____________.
Term
6CO2 + 6H2O --> C6H12O6 + 6OI2
Definition
Which of the following equations best represents photosynthesis?
Term
NADPH
Definition
What product of the light-dependent reactions is used in the Calvin cycle?
Term
Aerobic; anaerobic
Definition
"_______ processes require oxygen, whereas ________ processes do not."
Term
ATP
Definition
Which molecule provides the most accessible source of energy for cells?
Term
Genetic Recombination
Definition
Crossing over results in __________.
Term
One factor
Definition
"Mendel's law of segregation states that during meiosis, the factors that control each trait separate, and only __________ from each pair is/are passed on."
Term
Different Chromosomes
Definition
The law of independent assortment states that the inheritance of alleles for one trait is not affected by inheritance of alleles for a different trait if the genes fro the traits are on _________________.
Term
all black
Definition
"A female guinea pig homozygous dominant for black fur color is mated with a male homozygous for white fur color. In a litter of eight offspring, there would probably be."
Term
Homozygous recessive
Definition
A white mouse whose parents are both white produces only brown offspring when mated with a brown mouse. The white mouse is most probably __________________.
Term
Anaphase I
Definition
During what phase of meiosis do sister chromatids separate?
Term
Double Helix
Definition
Watson and Krick were the first to suggest that DNA is a _____________.
Term
Replication
Definition
The process by which a DNA molecule is copied is called ___________.
Term
Transcription
Definition
mRNA is formed in the process of ________.
Term
Frameshift mutation
Definition
A mutation in which a single base is added or deleted from DNA is called a ____________.
Term
Sex Chromosomes
Definition
The 23rd pair of chromosomes that differs in males and females is are called _____________.
Term
Punnet Square
Definition
"If a female fruit fly heterozygous for red eyes (XRXr) crossed with a white eyed male (XrY), what percent of the offspring will have white eyes?"
Term
Polygenic
Definition
Eye color in humans is the result of ________ inheritance.
Term
Recessive Alleles
Definition
Most human genetic disorders are caused by the expression of _____________.
Term
PKU
Definition
A human genetic defect that results in the failure to metabolize the amino acid phenylalanine is __________.
Term
25%
Definition
A man heterozygous for blood type A marries a woman heterozygous for blood type B. The chance that their first child will have blood type O is ___________.
Term
Electrophoresis
Definition
The process used to separate DNA segments of different lengths is ________________.
Term
Recombinant DNA
Definition
A section of mouse DNA is joined to a bacterial plasmid. The DNA formed is ____________________.
Term
Transgenic
Definition
An organism that contains functional recombinant DNA is called a ____________ organism.
Term
Inbreeding
Definition
_______________ usually increases the appearance of genetic disorders.
Term
Bacterial
Definition
___________ cells are the primary source of the plasmids used in DNA technology today.
Term
Vector
Definition
General term for a vehicle used to transfer a foreign DNA fragment into a host cell: ____________.
Term
Petrified fossil
Definition
"An exact stone copy of an original organism, the bard parts of which have been penetrated and replaced by minerals is called a(n) ___________."
Term
Sedimentary
Definition
Most fossils occur in layers of ___________ rock.
Term
Eukaryotes; prokaryotes
Definition
The endosymbiant theory suggests how ________ evolved from ___________.
Term
Paleozoic era
Definition
Shallow seas that teemed with life could first be found in the _____________.
Term
Photosynthesis
Definition
Scientists theorize that oxygen buildup in the atmosphere resulted from ________________.
Term
Relative Dating
Definition
The concept of _____________ will relevant only whether one fossil is older than another.
Term
Survival and reproduction of the organisms that are genetically best adapted to the environment.
Definition
Natural selection can best be defined as the _________________________________________.
Term
Convergent Evolution
Definition
A pattern of evolution that results when two unrelated species begin to appear similar because of environmental conditions is __________________.
Term
Directional
Definition
____________ selection favors one extreme form of a trait in a population.
Term
Mimicry
Definition
Provides protection for an organism by copying the appearance of another species.
Term
Charles Darwin
Definition
"When ___________ developed the theory of natural selection in the 1800s, he did not include a genetic explanation."
Term
Gene Pool
Definition
The entire collection of genes among a population is its ______________.
Term
Division
Definition
A group of related classes of plants is a _____________.
Term
Cladistics
Definition
The method used to construct a hypothetical evolutionary tree is ______________.
Term
Linnaeus
Definition
_____________ based most of his classification system on structural similarity.
Term
Binomial Nomenclature
Definition
Linnaeus devised a system for organisms called____________.
Term
Family
Definition
All genera of dogs are classified in the taxon called a _________.
Term
Species
Definition
Which taxon includes only organisms that can successfully interbreed?
Term
DNA or RNA
Definition
The genetic material of a virus is the ___________.
Term
Lytic Cycle
Definition
Viral genes are expressed immediately after the virus infects the host cell in the ____________.
Term
Lysogenic cycle
Definition
Viral DNA is integrated into the host cell's chromosome in the _____________.
Term
Binary fission
Definition
Two identical cells are produced in __________.
Term
Nitrogen fixation
Definition
The process by which bacteria use enzymes to convert nitrogen gas into ammonia is ____________.
Term
oxygen; obligate anaerobes
Definition
Bacteria that require _________ or respiration are called _____________.
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