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Gen Bio SLO stack

semester 1 material

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