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Biology Final Test
Test
214
Biology
9th Grade
05/07/2016

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Term
Hypothesis
Definition
A suggested solution to a problem
Term
Theory
Definition
A hypothesis that has been tested over and over again and generally holds true
Term
Independent Variable
Definition
a variable that is deliberately changed (manipulated variable)
Term
Dependent Variable
Definition
The variable that is observed and changes in response to the independent variable (responding variable)
Term
Inferences
Definition
Predictions about something based on observation
Term
Scientific Method
Definition
1. state the problem
2. gather information
3. form a hypothesis
4. do an experiment; tests hypothesis
5. record/analyze data
6. draw a conclusion
7. publish the results
Term
Attitudes for science
Definition
1. curiosity
2. skeptical
3. open minded
4. creativity
Term
Characteristics of Living Things
Definition
1. Has a metabolism
2. They reproduce
3. Move on their own
4. They are made up of cells
5. Respond to stimulus
6. Grow and Develop
7. Contains DNA
Term
Atoms
Definition
Smallest particles of an element that has all its properties
Term
Element
Definition
Matter made up of all the same type of atom
Term
Compounds
Definition
Matter made up of 2 or more different elements that are chemically combined
Term
Proton
Definition
-Positive Charge-Located in the nucleus-mass of one-identifies the element
Term
Neutron
Definition
-zero charge-located in nucleus-mass of 1-identify which isotope you have
Term
Electron
Definition
-found in cloud orbiting the nucleus-negative charge-mass of 0-allows atoms to bond or chemically bond
Term
Sources
Definition
1. Authority-a reliable educated source
2. Logic- orderly set of rules
3. Revelation- an unquestionable source said it
4. Scientific Method- based on logic/constantly tested
Term
What makes a radioactive Isotope
Definition
Excess numbers of neutrons which break down and release harmful rays
Term
How are radioactive isotopes useful
Definition
1. Dating the age of fossils and rocks
2. diagnose and treat diseases
3. sterilize food
4. create superior plants
Term
How are bonds created
Definition
when atoms gain, lose, or share electrons to fulfill their outer electron shell
Term
Ionic Bonds
Definition
form when one atom loses and one gains electrons, and it forms a bond (strongest)
Term
Covalent Bonds
Definition
2 or more atoms share electrons to fill their outer shells
Term
Properties of water:
Definition
1. Expands when frozen
2. It is polar
3. Exists in all three phases of earth's surface
4. High heat capacity
Term
Acids
Definition
-sour taste-pH of 6.9 or less- have H+ ions
Term
Bases
Definition
-have bitter taste-pH of 7.1 to 14- have 0 H ions
Term
Acid and Base of Equal strength equals:
Definition
1. pH of 7
2. H20
3. a salt
Term
What are buffers
Definition
materials that can be quickly added to the body to maintain homeostasis
Term
Organic Compounds are those that contain...
Definition
Carbon Compounds
Term
Why are there so many carbon compounds
Definition
1. Needs 4 electrons, so it shares with most other atoms
2. Can form single, double, or triple bonds
3.Forms isomers
4. Forms long chains of repeating carbon atoms
Term
Compounds of Life:
Definition
1. Carbohydrates-Monomers are monosaccharides-Polymers are polysaccharides-Main source of energy
2. Protein-Monomers are amino acids-polymers are polypeptides-builds and repairs muscles, regulates chemical reactions
Lipids- monomers are glycerol and fatty acids-polymers are oils, fats, and waxes-stores excess energy, makes hormones, makes waterproof coverings
4. nucleic acids-monomers are nucleotides-polymers are DNA and RNA-stores and transmits genetic info
Term
Ecology
Definition
the study of living things and their interactions between each other and their environment
Term
Biosphere
Definition
Portion of earth in which life can exist
Term
Biotic/Abiotic factors
Definition
Biotic: Living things in ecosystem
Abiotic: Non-living things in an environment
Term
Producers
Definition
Take energy and make own food
Term
Consumers
Definition
Take carbs and burn them to release energy
Term
Decomposers
Definition
Break down dead things into molecules
Term
Niche
Definition
Space and job an organism occupies
Term
Keystone Species
Definition
One species that affects all other species
Term
Symbiosis
Definition
2 different species live close to, on, or in the other species and interact
Term
Mutualism
Definition
Both benefit from the relationship
Term
Commensalism
Definition
One benefits,the other is neither harmed or helped
Term
Parasitism
Definition
One organism benefits, the other is harmed
Term
Biome
Definition
a large area with similar climate, plants, and animals
Term
Population
Definition
all the members of a species that lives in a biome
Term
Community
Definition
All of the populations that live in a biome
Term
Robert Hooke
Definition
Discovered Cells
Term
Anton Van Leeuwenhooke
Definition
Discovered cells are alive
Term
Robert Browne
Definition
Discovered the nucleus
Term
Schleiden
Definition
Plants have cells
Term
Schwann
Definition
Plants have cells
Term
Virchow
Definition
Need a whole cell to carry out processes
Term
Cell Theory
Definition
1. All living things are made up of cells
2. The cell is hte building block of life
3. Living cells reproduce
Term
Prokaryotes
Definition
No nucleus or membrane wrapped organelles
Term
Eukaryotes
Definition
has a nucleus and membrane wrapped organelles
Term
13 Parts of Cell
Definition
1. Cell Membrane
2. Cytoplasm
3. Genetic Material
4. Nucleus
5. Cell Wall
6. Mitchondria
7. Chloroplast
8. Ribosomes
9. Endoplasmic Reticulum
10. Vacuole
11. Lysosome
12. Golgi Apparatus
13. Cytoskeleton
Term
Cell Membrane
Definition
Thin, clear envelope that controls what can enter and leave the cell
Term
Cytoplasm
Definition
Jelly-like material that suspends and separates cell parts
Term
Genetic Material
Definition
has plans for making new cells
Term
Nucleus
Definition
Brain of the cell
Term
Cell Wall
Definition
two layers filled with cellulose and gives strength and support to plant cells
Term
Mitochondria
Definition
Oval with zig-zag structure, powerhouse of the cell
Term
Chloroplast
Definition
Round green balls filled with chlorophyll, makes sugar and oxygen in photosynthesis
Term
Ribosomes
Definition
Tiny grain like dots. assemble amino acids to make proteins
Term
Endoplasmic Reticulum
Definition
Series of tubes, moves material from one part of cell to another
Term
Vacuole
Definition
Clear empty sac, stores materials and waste for the cell
Term
Lysosome
Definition
Round sac filled with digestive enzymes, breaks down food and old cell parts
Term
Golgi Apparatus
Definition
Stack of pancvakes, package and modify materials
Term
Cytoskeleton
Definition
network of filaments and fibers that give cells shape and move them
Term
Cell Transport Passive Transport
Definition
Material goes from higher to lower concentration, does not require energy
1. Diffusion
2. Osmosis
3. Facilitated Diffusion
Term
Diffusion
Definition
Where material goes from higher to lower concentration until it reaches equilibrium
Term
Osmosis
Definition
Type of diffusion where water goes from a higher-lower concentration across a semi-permeable membrane
Term
Facilitated Diffusionq
Definition
large materials are helped through membranes with channels of with carrier molecules
Term
Active Transport
Definition
Material goes from lower to higher concentration with energy
1. molecular transport
2. bulk transport
Term
Molecular Transport
Definition
Small molecules and ions are moved
Term
Bulk Transport
Definition
Large molecules are moved
1. Endocytosis-into
2. Exocytosis-out
Term
Differences between plant and animal cells
Definition
1. Plant cells have chloroplast
2. Plant cells have cell walls
3. Animals have centrioles
Term
Levels of Cell Organization
Definition
1. Cell
2. Tissue
3. Organ
4. Organ System
5. Organism
Term
ATP
Definition
Major energy storing compound in te body
Term
What are the types of fermentation
Definition
1. Lactic Acid Fermentation-puruvic acid and 2 ATP are changed into lactic acid and 2 ATP
2. Alcohol Fermentation-Puruvic acid and 2ATP react and make CO2, ethyl alcohol, 2 and ATP
Term
Why do cells increase in number and not size
Definition
1. Only one set of DNA to be transcribed, and as the cell gets more ribosomes, it cant make DNA fast enough
2. The surface area to volume ratio goes down so material cant leave or enter the cell fast enough
Term
Asexual (Advantage and Disadvantage)
Definition
A parent has offspring that are genetically identical
A: Only need one parent
2. No diversity
Term
Sexual
Definition
Offspring gets 1/2 genes from each parent
A: Diversity
D: Ned 2 parents to continue population
Term
Cell Cycle
Definition
G1: Cell grows and makes organelles for specialization
S phase: duplicate copy of DNA
G2: Cell makes organelles needed after division
Prophase: Plump up-Chromosomes shorten and thicken
Metaphase: Match Up- Homologous Chromosomes line up across from each other
Anaphase: Apart- Each member is pulled to opposite sides of the cell
Telephase: Two- Nuclear membranes form
Cytokinesis- Cell membrane pinches in half
Term
Griffith
Definition
Experiment with Rats and Bacteria, discovered transformation
Term
Avery, McCarty, and Mac Leod
Definition
Repeated Griffith's experiment and found nucleic acids are needed to transform
Term
Hershey and Chase
Definition
Treat viruses with radioactive phosphorous/ sulful
Term
Chargraff
Definition
Noticed # of thymine=# of adenine and # of cytosine=# of guanine
Term
Franklin and Wilkens
Definition
Took X-ray images
Term
Watson and Crick
Definition
Made a 3-D model
Term
Structural Differences between DNA and RNA
Definition
1. RNA has sugar ribose, DNA has sugar deoxyribose
2. RNA has base Uracil, DNA has base Thymine
3. RNA is single helix, DNA is double helix
4. DNA has more nucleotides ten RNA
Term
mRNA
Definition
"messenger"-makes a complimentary strand of RNA and takes that message from nucleus to ribosome
Term
rRNA
Definition
"ribosomal"-2 strands of rRNA make a ribosome
Term
tRNA
Definition
"transfer"-move a specific amino acid to the ribosomes to be added to the protein the ribosome is making
Term
Transcription
Definition
DNA is made into a complimentary strand of RNA
Term
Central Dogma of Molecular Biology
Definition
Information stored in DNA is transferred to RNA and ten to protein mutations are changes in hereditary material that can be passed on
Term
Crossing Over
Definition
homologous chromosomes exchange parts which allows variation in gametes
Term
Meiosis
Definition
Cell division where 1 diploid cell goes through 2 divisions and produces 4 haploid nuclei
Term
Gene Linkage
Definition
If you inherit one allele you have a higher chance of getting one allele over another
Term
Haploid
Definition
1N (23)
Term
Diploid
Definition
2N (46)
Term
Gene Mapping
Definition
Finding the Location of a specific gene on a specific chromosome
Term
Gene Splicing
Definition
Taking out a bad gene and replacing it with a good one
Term
Prokaryotes
Definition
No nucleus or membrane wrapped organelles
Term
Eukaryotes
Definition
has a nucleus and membrane wrapped organelles
Term
13 Parts of Cell
Definition
1. Cell Membrane
2. Cytoplasm
3. Genetic Material
4. Nucleus
5. Cell Wall
6. Mitchondria
7. Chloroplast
8. Ribosomes
9. Endoplasmic Reticulum
10. Vacuole
11. Lysosome
12. Golgi Apparatus
13. Cytoskeleton
Term
Cell Membrane
Definition
Thin, clear envelope that controls what can enter and leave the cell
Term
Cytoplasm
Definition
Jelly-like material that suspends and separates cell parts
Term
Genetic Material
Definition
has plans for making new cells
Term
Nucleus
Definition
Brain of the cell
Term
Cell Wall
Definition
two layers filled with cellulose and gives strength and support to plant cells
Term
Mitochondria
Definition
Oval with zig-zag structure, powerhouse of the cell
Term
Chloroplast
Definition
Round green balls filled with chlorophyll, makes sugar and oxygen in photosynthesis
Term
Ribosomes
Definition
Tiny grain like dots. assemble amino acids to make proteins
Term
Endoplasmic Reticulum
Definition
Series of tubes, moves material from one part of cell to another
Term
Vacuole
Definition
Clear empty sac, stores materials and waste for the cell
Term
Lysosome
Definition
Round sac filled with digestive enzymes, breaks down food and old cell parts
Term
Golgi Apparatus
Definition
Stack of pancvakes, package and modify materials
Term
Cytoskeleton
Definition
network of filaments and fibers that give cells shape and move them
Term
Cell Transport Passive Transport
Definition
Material goes from higher to lower concentration, does not require energy
1. Diffusion
2. Osmosis
3. Facilitated Diffusion
Term
Diffusion
Definition
Where material goes from higher to lower concentration until it reaches equilibrium
Term
Osmosis
Definition
Type of diffusion where water goes from a higher-lower concentration across a semi-permeable membrane
Term
Facilitated Diffusionq
Definition
large materials are helped through membranes with channels of with carrier molecules
Term
Active Transport
Definition
Material goes from lower to higher concentration with energy
1. molecular transport
2. bulk transport
Term
Molecular Transport
Definition
Small molecules and ions are moved
Term
Bulk Transport
Definition
Large molecules are moved
1. Endocytosis-into
2. Exocytosis-out
Term
Differences between plant and animal cells
Definition
1. Plant cells have chloroplast
2. Plant cells have cell walls
3. Animals have centrioles
Term
Levels of Cell Organization
Definition
1. Cell
2. Tissue
3. Organ
4. Organ System
5. Organism
Term
ATP
Definition
Major energy storing compound in te body
Term
What are the types of fermentation
Definition
1. Lactic Acid Fermentation-puruvic acid and 2 ATP are changed into lactic acid and 2 ATP
2. Alcohol Fermentation-Puruvic acid and 2ATP react and make CO2, ethyl alcohol, 2 and ATP
Term
Why do cells increase in number and not size
Definition
1. Only one set of DNA to be transcribed, and as the cell gets more ribosomes, it cant make DNA fast enough
2. The surface area to volume ratio goes down so material cant leave or enter the cell fast enough
Term
Asexual (Advantage and Disadvantage)
Definition
A parent has offspring that are genetically identical
A: Only need one parent
2. No diversity
Term
Sexual
Definition
Offspring gets 1/2 genes from each parent
A: Diversity
D: Ned 2 parents to continue population
Term
Cell Cycle
Definition
G1: Cell grows and makes organelles for specialization
S phase: duplicate copy of DNA
G2: Cell makes organelles needed after division
Prophase: Plump up-Chromosomes shorten and thicken
Metaphase: Match Up- Homologous Chromosomes line up across from each other
Anaphase: Apart- Each member is pulled to opposite sides of the cell
Telephase: Two- Nuclear membranes form
Cytokinesis- Cell membrane pinches in half
Term
Griffith
Definition
Experiment with Rats and Bacteria, discovered transformation
Term
Avery, McCarty, and Mac Leod
Definition
Repeated Griffith's experiment and found nucleic acids are needed to transform
Term
Hershey and Chase
Definition
Treat viruses with radioactive phosphorous/ sulful
Term
Chargraff
Definition
Noticed # of thymine=# of adenine and # of cytosine=# of guanine
Term
Franklin and Wilkens
Definition
Took X-ray images
Term
Watson and Crick
Definition
Made a 3-D model
Term
Structural Differences between DNA and RNA
Definition
1. RNA has sugar ribose, DNA has sugar deoxyribose
2. RNA has base Uracil, DNA has base Thymine
3. RNA is single helix, DNA is double helix
4. DNA has more nucleotides ten RNA
Term
mRNA
Definition
"messenger"-makes a complimentary strand of RNA and takes that message from nucleus to ribosome
Term
rRNA
Definition
"ribosomal"-2 strands of rRNA make a ribosome
Term
tRNA
Definition
"transfer"-move a specific amino acid to the ribosomes to be added to the protein the ribosome is making
Term
Transcription
Definition
DNA is made into a complimentary strand of RNA
Term
Central Dogma of Molecular Biology
Definition
Information stored in DNA is transferred to RNA and ten to protein mutations are changes in hereditary material that can be passed on
Term
Crossing Over
Definition
homologous chromosomes exchange parts which allows variation in gametes
Term
Meiosis
Definition
Cell division where 1 diploid cell goes through 2 divisions and produces 4 haploid nuclei
Term
Gene Linkage
Definition
If you inherit one allele you have a higher chance of getting one allele over another
Term
Haploid
Definition
1N (23)
Term
Diploid
Definition
2N (46)
Term
Gene Mapping
Definition
Finding the Location of a specific gene on a specific chromosome
Term
Gene Splicing
Definition
Taking out a bad gene and replacing it with a good one
Term
Heredity
Definition
Delivery of characteristics from parent of offspring
Term
Genetics
Definition
the study of heredity
Term
Trait
Definition
A specific characteristic of an individual
Term
Hybrid
Definition
Offspring of parents with different traits
Term
Alleles
Definition
Different forms of a gene
Term
Genes
Definition
Factors that are passed from parents to offspring
Term
Gregor Mendel
Definition
Discovered heredity and dominant and recessive genes
Term
Principle of Dominance
Definition
Some alleles are dominant and some are recessive, If it has at least 1 dominant allele, it will express that trait
Term
Segregation
Definition
Separation that happens during meiosis
Term
Gametes
Definition
Reproductive cells
Term
Probability
Definition
the likelihood that something will occur, can be incorrect due to small sampling error
Term
Homozygous
Definition
Homo means same-Two identical alleles for a particular gene (TT or Tt)
Term
Heterozygous
Definition
Hetero means different-Different alleles for the same gene (Tt)
Term
Phenotype
Definition
Physical Traits
Term
Genotype
Definition
Genetic Makeup
Term
Punnett Square
Definition
Mathematical probability to help predict the genotype/phenotype combinations in genetic crosses
Term
Incomplete Dominance
Definition
Some alleles are neither dominant or recessive
Term
codominance
Definition
A case in which both phenotypes produced by alleles are clearly expressed
Term
Multiple Alleles
Definition
A gene with more than 2 alleles: Exists in several different forms
Term
Polygenic Traits
Definition
Traits controlled by two or more genes. Polygenic means "many genes"
Term
Genome
Definition
Full set of genetic information that an organism carries in its DNA
Term
Karyotype
Definition
Shows the complete diploid set of chromsomes grouped together in pairs, arranged in order of decreasing size
Term
Autosomes
Definition
Autosomal Chromsomes are non-sexual chromosomes (1-22)
Term
Sex-Influenced Traits
Definition
Carried on the autosomes but are only expressed if male/female hormones are present
Term
Non-Disjunction
Definition
Failure of meiosis, fail to separate
Term
Selective Breeding
Definition
They allow only the plants/animals they want to reproduce
Term
Hybridization
Definition
crossing two dissimilar to get maximum heterozygosity
Term
Inbreeding
Definition
breeding closely related plants and animals to get maximum homozygosity
Term
PolyPloidy
Definition
Extra pair of chromosomes (mostly in plants)
Term
Charles Darwin
Definition
Developed the theory of Evolution
Term
La Marck
Definition
A. Animals have a desire to change
B. Traits become stronger with use/disuse
C. Traits gained are passed on to offspring
Term
Hutton
Definition
Earth is much older then believed at the time
Term
Lyell
Definition
Uniformitarianism
Term
Malthus
Definition
Population was expanding fast, world would soon starve to death
Term
Darwin's Ideas
Definition
1. More members of species are born than will survive to adulthood
2. There are differences in members of the same species
3. There is strong competition to get resources needed to survive
4. Some differences increase the chance of survival
5. Those that survive will genetically pass on those traits to offspring
Term
How did Farmers influence Darwin
Definition
He noticed how they artificially selected desirable plants and animals, so he realized nature did the same thing
Term
Best evidence of Evolution
Definition
fossils
Term
Fitness
Definition
The ability to pass your genes on to the next generation
Term
Problems with Darwin's theory
Definition
1. CHance
2. Lack of intermediate fossils
3. Living Fossils
4. Puncuated Equilibrium
5. Mass Extinctions
Term
How do we end up with a new species
Definition
1. Founding fathers and mothers
2. Geographic Isolation
3. Change in gene pool
4. Reproductive Isolation
5. 2 species are returned to a common environment
Term
Divergent Evolution
Definition
The idea that a common ancestor has offspring that become less and less like the ancestor as time passes-homologous body parts
Term
Convergent Evolution
Definition
Organisms that don't have a common ancestor but develop body parts that appear similar-analogous
Term
Extinct
Definition
A species that has died out
Term
Carolus Linnaeus
Definition
Came up with Binomial Nomenclature
Term
Binomial Nomencalture
Definition
two part scientific name (latin)
Term
Clade
Definition
Group of organisms with a common ancestor
Term
Classification
Definition
Placing similar organisms into groups, the more similarities, the more closely realted
Term
Domain
Definition
New taxa that is more inclusive then a kingdom
Term
Types of DOmains
Definition
1. Archaea Bacteria-have peptidoglycan in cell walls, single celled, no nucleus or membrane wrapped organelles
2. Eubacteria- no peptidoglycan in cell walls, single celled, no nucleus or membrane wrapped organelles
3. Eukaria- Have a nucleus and membrane wrapped organelles
Term
Virus
Definition
Nonliving Particle that effects their host
Term
Retrovirus
Definition
Have RNA as their genetic material
Term
Lytic Infection
Definition
Inserts its DNA into host cell, ten it takes over and forces it to make new viruses
Term
Lysogenic
Definition
The virus enters a cell and inserts its genetic material into the hosts DNA, lies dormant, but sometime something triggers the DNA and they go through the lytic stage.
Term
Prophage
Definition
The viral DNA that is embedded into the host cell and then replicated
Term
Fungi
Definition
heterotrophic eukaryotes with cell walls that contain chitin
Term
Chitin
Definition
Modifiedf sugars found in external skeletons of insects
Term
Alternation of Generations
Definition
One portion reproduces and produce cells. Second portion takes 1N's the the first and make 2N and go through meiosis
Term
Limiting Factor
Definition
Factor that causes population growth to decrease
Term
Enzyme
Definition
Proteins that act as biological catalyst (A catalyst is a substance that speeds up the rate of a chemical reaction)
Term
Adhesion
Definition
Force of attraction between different kinds of molecules
Term
Cohesion
Definition
Attraction between molecules of the same substance
Term
Transformation
Definition
process in which one strain of bacteria is changed by a gene or genes from another strain of bacteria
Term
Translation
Definition
Process by which the sequence of bases of an mRNA is converted into the sequence of amino acids of a protein
Term
Vestigial Structure
Definition
Structure that has lost much or all of original function
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