semester 1 material
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| what is the largest organelle in the cell (hint- you can see it when you looked at cells under the microscope) | nulceus
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| what does prokaryote mean? | cells without a nucleus
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| what does eukaryote mean? | cells with a nucleus
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| do both prokaryotes and eukaryotes have DNA even though they both dont have a nucleus? | yes
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| what part of the cell is semipermeable (lets some things through an others not) | cell membrane or nuclear membrane
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| what is a producer | an organism that makes its own food
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| what are the 3 parts of an atom? | proton, neutron, electron
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| which type of cell transport requires energy? | active
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| what is osmosis? | the passive transport of water from high concentration to low concentration.
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| does the cell have to use energy to do osmosis? | no it is passive transport
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| which type of cell has cell walls? | plant cells
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| what are chromosomes made out of? | DNA
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| what are the only human cells that are haploid? | sex cells- sperm and egg
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| how many pairs of chromosomes do humans have? | 23
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| what do you call the individual letters that you put into a punnet square? | alleles
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| what do you call 2 alleles together? | the genotype
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| what do you call the physical appearance of an organism? | the phenotype
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| what is the genotype? | the genetic make up of the organism
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| in a punnet square a capital letter means the allele is... | dominant
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| how do you show homozygous recessive alleles | both alleles are lower case
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| how do you show heterozygous alleles | one allele is capital and one is lower case
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| what does it mean to be nonliving | it never lived and doesn't have cells
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| give an example of something that is nonliving | rocks, fire, sunlight, water
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| what does it mean to be dead? | it was alive at one time and had cells
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| what is a population? | organisms of one type that live together and can reproduce
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| what is a community? | many species that live together in a specific area
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| what is a niche? | the role an organism plays in its environment- how much it eats, how many babies it has, where it lives etc
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| what is a limiting factor? | anything that restricts the growth of a population
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| what is the purpose of photosynthesis? | for plants to take light energy and turn it into sugar (which is their food)
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| what do plants need to do photosynthesis? | carbon dioxide and water
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| what are the products of photosynthesis? | glucose and oxygen
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| what is a consumer? | an organism that cannot make its own food but has to eat food
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| what is a food web? | many food chains linked together
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| what is an estuary? | an area where freshwater meets saltwater; they are very fertile areas
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| name two freshwater ecosystems? | lakes, ponds, rivers, streams, swamps
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| what is succession? | when the land grows back from a disturbance over time
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| which type of succession has to start from rock? | primary
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| which type of succession happens when soil is still left behind? | secondary
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| what is a biome/ecosystem? | a large geographic area that has similar climate and temperature- it includes the living and NONliving factors
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| what biome is ohio in? | temperate deciduous forest
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| how are plant cells different from animal cells? | cell wall, large central vacuole, cell plate during division, do not have centrioles
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| what is the carbon cycle? | the way carbon (carbon dioxide) flows through the Earth. (people/animals breath it out and plants take it in)
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| what is asexual reproduction? | involves 1 parent, makes offspring quickly, makes offspring that are identical to the parent
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| what is an advantage of sexual reproduction? | genetic diversity- could have resistance for diseases
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| what is an organelle? | a part of a cell like the mitochondria or ribosome
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| cells make up... | tissues
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| tissues make up... | organs
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| organs make up... | organ systems
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| organelles make up... | cells
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| many populations are | a community
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| many communities and the NONliving features are an | ecosystem
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| the entire part of earth that has life is known as the | biosphere
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Created by:
ruth.baker
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