PCCA 7th grade vocab for science midterm
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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smallest unit of a living thing that can preform the functions of life | cell
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any living thing | organism
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regulation of an organism's internal life-maintaining conditions despite changes in its environment | homeostasis
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theory that living things can come from nonliving things | spontaneous generation
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two-word naming system | binomial nomenclature
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a group of similar species | genus
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a group of similar organisms that share similar characteristics and can reproduce among themselves | species
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ridged structure that encloses, supports, and protects the cells of plants, algae, fungi, and most bacteria | cell wall
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protective outer covering of all cells that is made up of a double layer of fat-like molecules and regulates the interaction between the cell and the environment | cell membrane
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cell organelle that breaks down lipids and carbs and also releases energy | mitochondria
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small structures on which cells make their own proteins | ribosomes
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cytoplasmic organelle that moves materials around in a cell and is made up of a complex series of folded membranes | endoplasmic reticulum (ER)
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organelles that package cellular materials and transport them with in or out of the cell | Golgi Bodies
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break down food molecules, wastes, and worn out cell parts | lysosomes
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green, chlorophyll-containing plant-cell organelle that converts sunlight, carbon dioxide, and water into sugar | chloroplast
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organelle that contains all the activities of a cell and contains hereditary material made of proteins and DNA | nucleus
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extremely tiny piece of genetic material that infects and multiplies in host cells | virus
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energy-requiring process in which transport proteins bind with particles and move them through a cell membrane | active transport
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movement of substances through a cell membrane without the use of cellular energy | passive transport
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a type of passive transport in cells in which molecules move from areas where there are many of them to areas where there are fewer of them | diffusion
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a type of passive transport; diffusion of water | osmosis
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process by which a cell takes in a substance by surrounding it with a cell membrane | endocytosis
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food-making process by which plants and many other producers use light energy to produce glucose and oxygen from carbon dioxide and water | photosynthesis
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series of chemical reactions used to release energy stored in food molecules | respiration
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states that everything goes from order to chaos | 2nd Law of Thermodynamics
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change in inherited characteristics over time | evolution
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belief that God created man and this earth | creation
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long, thin, whip-like structures of some protists that help them move through moist or wet surroundings | flagella
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simplest for of asexual reproduction in which two new cells are produced that are identical to each other and the parent | fission
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process in which a liquid is heated to a certain temperature to kill most bacteria | pasteurization
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chlorophyll-containing, plant-like protists that produces oxygen as a result of photosynthesis | algae
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short,thread-like structures that help Cilitate move and feed on bacteria | cilia
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a temporary way of feeding using extensions of their cytoplasm called "false feet" | pseudopod
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a many-celled organism; many are saprophytes and some are parasites | fungi
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any organism that is made up of a fungus and either a green algae or a cyanobacterium and both organisms benifit | lichen
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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