TAKS Vocabulary - Birdville Independent School District

1、Biology STAAR Vocabulary,Scientific Method,Homogeneous,Same being similar in nature. Having uniform composition - same throughout Smoooooth,Heterogenerous,Different Consisting of parts that are unrelated or unlike each other. Chunky,Reactants - Products,In a chemical equation (formula) The reactants

2、 are what you start with. They are on the left side of the equation. The products are what they (the reactants) make. They are on the right side of the equation. The arrow points to the products. Reactant + Reactant Product + Product,Biology 1st level consumer T3: Secondary Consumers; 2nd level cons

3、umer T4: Tertiary Consumers; 3rd level consumer T5: Quaternary Consumers; 4th level consumer,Autotroph,Producers Produce their own food by using the energy from the Sun and the environment to make sugar through photosynthesis. Plants Phytoplanton algae Some bacteria,Heterotrophs,Consumers Organisms

4、that feed on other organisms.,Niche,A descriptive term for a relational position of a organisms species. A place where it belongs and can thrive.,Herbivores,Eat only plants,Carnivores,Eat animals,Omnivores,Eat both plants and animals,Graphic Feeding Relationships,Food Chain Food Wed Food Pyramid Ene

5、rgy Pyramid The arrow points to who eats. The arrow points in the direction the energy flows,Chains, Webs, but may not. Mutations may be good, bad, or have no affect.,Osmosis,It is the movement of water across a semi-permeable membrane from an area of high water potential (low solute concentration)

6、to an area of low water potential (high solute concentration). Semi-permeable membrane its a flexible container that lets some stuff pass through it while keeping larger things contained.,Adaptation , Evolution,Changes over time an organism makes due to the environment so it can thrive. Survival of

7、the fittest.,Ecosystem,The biotic and abiotic elements in a living environment.,Helper T Cells,T helper cells are a sub-group of lymphocytes (a type of white blood cell or leukocyte) that play an important role in establishing and maximizing the capabilities of the immune system. The AIDS virus atta

8、cks the T Cells so they cannot fight infections. AIDS: Acquired Immune Deficiency Syndrome,ROCKS,Igneous Rocks,Igneous rock (from the Latin ignis meaning born of fire) is one of the three main rock types (the others being sedimentary and metamorphic rock). Igneous rock is formed by magma (molten roc

9、k) cooling and becoming solid.,Sedimentary Rocks,Sedimentary rock is formed by sedimentation of material at the Earths surface and within bodies of water. Sedimentation is the collective name for processes that cause mineral and/or organic particles (detritus) to settle and accumulate or minerals to

10、 precipitate from a solution. Particles that form a sedimentary rock by accumulating are called sediment. Before being deposited, sediment was formed by weathering and erosion in a source area, and then transported to the place of deposition by water, wind, mass movement or glaciers.,Metamorphic Roc

11、ks,Metamorphic rock is the result of the transformation of an existing rock type, the protolith, in a process called metamorphism, which means change in form. The protolith is subjected to heat and pressure causing profound physical and/or chemical change. Metamorphic rocks are rocks that have morph

12、ed into another kind of rock.,GENETICS,Genes and alleles,Genes: Units of heredity information that consist of DNA and are located on chromosomes. Genes can exist in alternative forms called alleles. An allele is an alternative form of a gene (one member of a pair) that is located at a specific posit

13、ion on a specific chromosome.,Heterozygous ; Homozygous,Heterozygous refers to having two different alleles for a single trait. Homozygous refers to having identical alleles for a single trait.,Genotype - Phenotype,Genotype: genes that are present XX Xx xx Phenotype: how the genes are expressed tall

14、, short, pink, white,Genotype Punnet Square,Punnet Squares,Punnet Squares,Punnet Square,Punnet Square,PLANTS,Why we need plants.,Parts of a Plant,Leaf Parts,Flowers,Flower Parts,Flower Parts,Flower Parts,DNA it is particularly important in the processing of proteins for secretion. The Golgi apparatu

15、s forms a part of the cellular endomembrane system.,Cytoskeleton,The cytoskeleton (also CSK) is a cellular scaffolding or skeleton contained within the cytoplasm that is made out of protein. The cytoskeleton is present in all cells. It gives the cell form, support, and structure.,Cytoplasm,The cytop

16、lasm is the part of a cell that is enclosed within the cell membrane. Thick liquid, mainly water, jelly-like Volume of cell,Cell Membrane,The cell membrane (also called the plasma membrane) is one biological membrane separating the interior of a cell from the outside environment. The cell membrane s

17、urrounds all cells and it is semi-permeable, controlling the movement of substances in and out of cells.,Mitochondria,A mitochondrion (plural mitochondria) is a membrane-enclosed organelle found in most eukaryotic cells. Mitochondria are sometimes described as cellular power plants because they gene

18、rate most of the cells supply of (ATP) adenosine triphosphate, used as a source of the chemical energy. In addition to supplying cellular energy, mitochondria are involved in a range of other processes, such as signaling, cellular differentiation, cell death, as well as the control of the cell cycle

19、 and cell growth.,Lysosomes,Lysosomes are the cells garbage disposal system. Lysosomes are spherical organelles that contain enzymes (acid hydrolases). They break up food so it is easier to digest. They are found in animal cells. Lysosomes digest excess or worn-out organelles, food particles, and en

20、gulfed viruses or bacteria.,Chloroplasts (only in Plant Cells),Chloroplasts are organelles found in plant cells and other eukaryotic organisms that conduct photosynthesis. Chloroplasts capture light energy to conserve free energy in the form of ATP through a complex set of processes called photosynthesis. The word chloroplast is derived from the Greek words chloros, which means green, and plast, which means form or entity,Cell Wall (only in Plant Cells),A cell wall is a tough, usually flexible but sometimes fairly rigid laye