Biology Unit 4 Vocab
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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| cell | basic unit of life
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| cell membrane | a thin flexible barrier surrounding the cell
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| Nucleus | is a large membrane enclosed structure that contains genetic material in form of DNA and controls many of the cells activity
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| Eukaryotes | contains DNA in their nuclei
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| Prokaryotes | do not enclose DNA in a nuclei
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| Vacuoles and vesicles | Stores materials such as water, salts, proteins, and carbohydrates
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| Lysosomes | Break down waste and detoxify poisons to clean up the cell
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| Cytoskeleton | Network of proteins filaments in a eukaryotic cell that gives its shape and internal organization and is involved in movement
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| Centrioles | Structure in an animal cell that helps to organize cell division
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| Ribosomes | Can be found in the endoplasmic reticulum, or floating through the cytoplasm, they create proteins by joining amino acids that the cell s need
Made in the nucleus
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| Endoplasmic Reticulum | Series of folded membranes that prepares the proteins for transport to the Golgi apparatus
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| Golgi Apparatus | Receives proteins from E.R, package them for protection to be sent to other parts of the cell
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| Chloroplasts | -found in plants and algae
-use energy from sunlight to make food
-contains DNA and can divide on its own
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| Mitochondria | Chemically change food into energy (ATP)
Contain DNA and can Divide on its own
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| Cell Wall | -found in plants, algae, fungi, and most bacteria
-made of cellulose
-help protect and support the cell
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| Cell Membrane | Outer covering protective layer in ALL cells
Controls what comes in and out of the cells
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| Diffusion | When particles move to an area that is more concentrated to an area that is less concentrated
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| Passive Transport | the movement of materials across the cell membrane without using energy
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| Facilitated Diffusion | Process of Diffusion in which molecules pass across the membrane through cell membrane channels
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| Aquaporins | Water Channel Proteins
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| Osmosis | diffusion of water through a selectively permeable membrane
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| Isotonic | when the concentration of two solutions are the same
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| Hypertonic | when comparing two solutions the solution with the greater concentration of solutes
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| Hypotonic | when comparing two solutions, the solution with the lesser concentration of solutes
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| Osmotic Pressure | the pressure that must be applied to osmotic pressure movement across a selectively permeable membrane
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| Active Transport | The movement of materials against a concentration difference
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| Endocytosis | process of taking materials into the cell by means of enfolding, or pockets of the cell membrane
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| Phagocytosis | a type of endocytosis, where extensions of cytoplasm surround a particle and package it within a vacuole
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| Exocytosis | membrane of the vacuole fuses with the cell membrane to bring material OUT OF the cell
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| Homeostasis | relatively constant internal physical chemical conditions
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| Unicellular Organisms | organisms are single celled living creature that meet all criteria of a living thing
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| Multicellular Organisms | a multiple-celled living creature that meets all criteria of a living thing
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| Cell | basic unit of all forms of life
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| Tissue | a group of similar cells that performs a particular function
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| Organ | group of tissue that work together to perform closely related functions
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| Organ System | a group of organs that work together to perform a specific function
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Or sort by any of the columns using the down arrow next to any column heading.
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