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Transcription
The process in which RNA is made from DNA is called what?
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surface area and volume
What are two measures that determine how large a cell can be?
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protein
In the 1940's, what did most researchers think the genetic material was?
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Small molecules
Nonpolar molecules
What kinds of molecules are allowed to pass through the membrane without requiring energy?
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the inside
If E. coli are infected with T2 viruses that have radioactive DNA, would you expect the INSIDE or the OUTSIDE of the cell to be radioactive?
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smooth ER
Which organelle makes lipids, phospholipids, steroids, and breaks down toxins and poisons in the cell?
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unsaturated phospholipids
increased cholesterol embedded in membrane
What factors may lower a membrane's freezing point?
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Endocytosis
What is the name of the process in which a cell envelopes another cell?
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-plant cells have a cell wall
-plant cells have chloroplasts -plant cells have a central vacuole -animal cells have centriols
3 differences between plant and animal cells are...
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Chloroplasts
Which organelle is responsible for photosynthesis?
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Prokaryotic cells are:
smaller simpler evolved on Earth earlier no membrane-bound organelles DNA in nucleoid region
What are the differences between Prokaryotic and Eukaryotic cells?
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cytoskeleton
What structure in an animal cell allows for movement and provides support?
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It harvests energy from food and stores it in ATP
What is the function of the mitochondria?
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Countertransport
What form of transport across the membrane requires energy and moves solutes in opposite directions?
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Mesophyll cells have more chloroplasts
What differentiates the mesophyll cells from other types of cells?
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Eukaryotic cells are up to 1,000 times bigger than prokaryotic cells
Which are bigger, Prokaryotic or Eukaryotic cells?
How much are they bigger? |
Each strand of the DNA double strand can act as a template to replicate itself, thus producing two double stranded DNA molecules.
What is the importance of the fact DNA is double stranded (rather than single stranded)?
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Water
Oxygen Carbon Dioxide
During photosynthesis, what three molecules move through the stoma?
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Eukaryotic cells have internal membranes.
How do eukaryotic cells compensate for their surface area to volume ratio?
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rRNA and protein
What is a ribosome made out of?
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The males and females express different traits
How can you tell if a species has undergone sexual selection or not?
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Hershey and Chase
Who discovered that DNA was the genetic material?
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DNA and ribosomes
What is the nucleolus made up of?
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Oxygen and sugar
What are the products of photosynthesis?
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Your mother
Do you inherit your mitochondria from your mother or your father?
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