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Gen Bio SLO stack
semester 1 material
| Question | Answer |
|---|---|
| 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
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