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30 Cards in this Set
- Front
- Back
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Nucleus
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the nucleus directs all of the cells activites, including reproduction
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Cytoplasm
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The gel like fluid in which many organelles are found
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Ribosomes
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Produces proteins. they may be attached to the ER or they may float in the cytoplasm
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Golgi Bodies
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recieves materials from the ER and sends the to other parts of the cell. they also release materials outside the cell
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Mitochondria
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MOst of th3e cells energy is produced there within these rod shaped organelles
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Cell Membrane
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it protects the cell and regulates what comes in and out of the cell
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Cell membrane (for animals)
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BEcause they dont have a cell wall, the cell membran forms a barrier between the cytoplasm and the enviorment outside the cell
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Vacuole
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sores water and food and waste products and other materials. it is in the cytoplasm
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Vacuole (animal cells)
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Some animal cells have them that store food, water, waste, and other materials
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Chloroplats
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The organelles capture energy from sunlight and use it to produce food for the cell
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cell wall
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a stiff wall that surrounds a plant cell and protects it
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Endoplasimc Reticulum (ER)
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A network of passage ways that carries materials from one part of the cell to another
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Lysosomes
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these small organelles contain chemicals that break down food particles and worn out cell parts
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Chromatin
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Strands that cotain genetic material, and the instruction for the directing of the cells functions
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Nucleolus
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where ribosomes are made
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What is the differemce between a cell from a plant leaf and from a plant root?
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Plant leaf has chloroplats and root doesnt
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What are the levels of organization from simple cells to organisms
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Cell-nerve cell,tissue-nerve tissue,organ- brain, organ system- nerve system, organism- human\
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What is a tissue?
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A group of the same cells which do a certain function
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What is the difference between human and frog blood cells?
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Frogs have a nucleus and humans dont, frog cells are bigger
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How does the design of a blood cell fit its function?
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Since it is small, it can move through veins and artiries easier, also since it doesnt have a nucleus, it can carry more oxygen and carbon dioxide through the body
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How do you think the shape of a muscle cell matches its function?
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How it matches is that when the cell contrats and stretchs, it has more room to stretch because it is very thin
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How neurons shape matches its function?
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How it matches is that since they have long branches, it allows the dendrites to recieve and pick up better impulses
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Most chemical reactions couldnt happen without what present?
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Water
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what is diffusion?
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the process by which molecules move from an area of higher concentration to an area of lower concentration
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What is osmosis
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the diffusion of water molecules
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active transport
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the movement of materials thoguh a cell memnbrane using cellular energy
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passive transport
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the movement of materials thourgh a cell membrane without using energy
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Transport proteins?
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A way that cells move materials that transport proteins in the cell membran by picking them up with molecules outside the cell and carry them in, using energy
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Diffusion of oxygen?
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Before diffusion:
there is a higher concentration of oxygen molecules outside the cell than inside the wall After: The concentraion of oxygen molecules is the same outside and inside the cell |
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Muscle cells and root cells? why do you think they have many mitochondria?
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Muscle cells need them because they need energy to carry out tehre functions
Root cells need them to give energy and support to the whole plant |
