9.29.15
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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| cells | the basic unit of life
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| cell theory | all living things are made up of cells
cells are the basic units of living things
cells come from cells
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| cell membrane | a thin flexible barrier that surrounds the cell
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| what is the cell membrane sometimes called? | the plasma membrane
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| nucleus | a large membrane enclosed structure that controls genetic material in the form of DNA and controls many cell's activities
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| Eukaryotes | cells that enclose their DNA in nuclei
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| Prokaryotes | cells that do not enclose their DNA in the nuclei
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| prokaryotes | smaller and simpler
do not separate genetic material in the nucleus
carries out activities associated with living things
bacteria
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| eukaryotes | larger and more complex
contains internal membranes
nucleus separates the genetic material from the cell
plants and animals
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| cytoplasm | the fluid portion of the cell outside the nucleus
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| do prokaryotes have a cytoplasm? | yes, but not a nucleus
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| organelles | little organs
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| nucleus | contains all of the cell's DNA and the coded intructions to make proteins
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| do prokaryotes have a nucleus? | no, but they do have DNA
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| chromosomes | carries the cell's genetic information
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| where are chromosomes found? | in the nucleus
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| nucleolus | where the assembly of ribosomes begins
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| vacuoles | stores water, salts, proteins and carbohydrates
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| vacuoles | large, sac-like, membrane enclosed structures
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| do plants have a vacuole? | yes, but they have a central vacuole
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| where are vacuoles found for? | some uncellular organisms and some animals
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| vesselles | store and move materials between cell organelles
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| lysosomes | "the clean up crew"
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| lysosomes | small organelles filled with enzymes
they break down lipids, carbohydrates and proteins ino small molecules
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| cytoskeleton | network of protein filaments that gives eukaryote cells thier shape
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| cytoskeleton | flagella and cillia
helps maintain cell shape and is also involved in movement
microfilaments and microtubules make up the cytoskeleton
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| microfilaments | threadlike structures made up of actin(protein)
they help cells move
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| microtubules | hollow structures made up of tubulins(protein)
they help maintain the cell's shape
important in cell division and helps separate chromosomes
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| centrioles | located near the nucleus and helps organize cell division
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| are centrioles found in plant cells? | no
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| ribosomes | small particles of RNA and protein found throughout the cytoplasm in all cells
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| what are ribosomes known as? | "the boss"
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| proteins are assembled on what? | ribosomes
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| endoplasmic reticulum | internal membrane that the eukaryote cell contains
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| where are lipid components ofthe cell membrane are assembled, along with proteins and other materials that are exported from the cell? | the endoplasmic reticulum
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| rough endoplasmic reticulum | ER involved in the sythesis of proteins/ rought because ribosomes are found on its surface
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| smooth endoplasmic reticulum | it is called this because no ribosomes are found on it's surface
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| golgi apparatus | where proteins that were produced in the rough ER move into
a stack of flattened membranes
modifies, sorts, and packages proteins and other materials
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| what does the golgi apparatus do? | modifies, sorts, and packages proteins and other materials
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| chloroplasts | the biological equivalents of solar power plants
capture energy from sunlight and converts it into food
two membranes surround it
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| mitochondria | found in all eukryotic cells, including plants
power plants of a cell
converts chemical energy from food into compounds
two membranes/ outer and inner
has their own genetic information
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| cell wall | most prokaryotes
a strong supporting layer around that membrane
supports, shapes and protects the cell
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| which has a cell wall, plants or animals? | plants, not animals
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| lipid bilayer | gives cell membranes a flexible structure that forms a strong barrier between the cell and its surroundings
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