LE Review Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Term | Definition |
Single celled | organism made of just 1 cell |
Transport | move from one place to another |
Molecule | chemical compound; complex |
Building block | what something is made of; what you put together to get something else |
Ecosystem | all the living and nonliving (biotic & abiotic) substances in an area |
Producer | organism that makes its own food (by photosynthesis or chemosynthesis) |
Consumer | organism that must eat other organisms for its food; cannot make its own food |
Placenta | organ that supplies nutrients to fetus and removes wastes from fetus; connected to fetus by umbilical cord |
Fetus | unborn offspring that is developing in the uterus in mammals |
Uterus | organ where a fetus develops in mammals |
Disruption | stopping a process or activity before it is completed |
Offspring | sons or daughters born from parents |
Identical | exactly the same right down to the DNA |
Process | series of steps to achieve a result |
Cloning | fusion of a skin or non sex nucleus into an egg that results in an identical offspring to parent of nuclear DNA |
Fertilization | fusion of egg and a sperm |
Meiotic cell division | division that results in 4 daughter cells with ½ the # of chromosomes |
Selective breeding | 2 parents with trait wanted bred together to get desired trait in offspring; choosing a few organisms with a desired trait to mate to produce offspring with that trait. |
Cell structure | part of the cell; organelles |
Mitochondria | organelle responsible for cellular respiration (energy source); powerhouse of cell; mighty mitochondria |
Synthesize | to put together to make a single substance |
Organelles | cell structure that performs a specific function or job |
Function | job of the organ or organelle or organism or niche of organism |
Ultraviolet radiation | invisible rays from the sun that can cause mutations (changes from normal |
Genetic change | change in DNA; can be passed down to future generations if in gametes; if in skin cells, cannot be passed down to offspring |
Biofuel | fuel made from substances such as corn; (food products), used oil |
Ecological | refers to the environment (usually in reference to protecting the environment) |
Biodiversity | presence of a variety of version of a given trait in a species to ensure species survival: peppered moths – white & black coloring |
Harvested | taking in the results of the growing season |
Population | a group of a given species in a specific location – dogs, cats, lions, tigers, bears |
Stability | a system is balanced; at homeostasis; no overall change in the system |
Gene | a segment of DNA that contains the code for a specific trait |
Trait | observable expression of a gene determined by 2 alleles of the gene |
Gametes | egg & sperm; sex cells |
Evolution | process by which species change over time |
Species | group of organisms with the same characteristics and can mate with each other |
Finite | definite or specific amount of time or amount; gone after that point |
Circulation | transport of materials (blood) through the body; from one place to another by way of arteries, veins, capillaries & the heart |
Mutations | changes in the genetic code (DNA) that produce changes in the body |
Feedback mechanism | cycle where the outcome is either increased/enhanced (positive feedback) or decreased or stopped (negative feedback |
Genetic engineering | human technology that alters genetic makeup of organisms, usually by substitution |
Potential | possible ability |
Pollution | a harmful change in the chemical make up of the soil, air or water |
Regulate | control |
Binary fission | split into 2 identical organism; form of asexual reproduction |
Organic molecules | molecules that have both C & H in them; proteins, carbohydrates, fats & lipids, DNA, RNA (amino acids, simple sugars, glycerol & fatty acids) |
Autotrophic | makes own food |
Heterotrophic | cannot make own food, must take in food |
Chromosome | threadlike strand that contains DNA |
Chemical reaction | when 2 or more chemicals react to form a new product |
Metabolic | life activities that cells and living organism undergo: growth, reproduction, response to environment, digestion, excretion, respiration, circulation |
Asexual reproduction | reproduction that results in 2 offspring identical to the parent with the same number of chromosome |
Antibiotics | man made medicine used to kill bacterial cells and fight infections |
Bacteria | single celled organism that lacks a nucleus; pathogen (foreign to the body |
Antibiotic resistant bacteria | bacteria that contain genetic blueprint that makes them resistant to antibiotics; antibiotics don’t kill them |
Virus | nonliving protein particle with genetic material that invades cells and replicates; pathogen |
Vaccination | an injection containing a vaccine (a weakened, killed or partial piece of the virus) |
Pathogen | foreign substance that invades the body causing disease |
Resources | available material needed for a specific purpose (to supply energy --> coal, oil, water, wind…) |
Stability | balance; homeostasis; dynamic equilibrium |
Malfunction | doesn’t work right |
Circulatory system | organ system responsible for transporting materials throughout your body; includes heart, arteries, veins, capillaries, blood (plasma, RBC, WBC, platelets |
Inorganic materials | materials that have C or H but not both together; CO2, H2O, acids, bases, salts |
Cytoplasm | fluid portion of the cell where biochemical reactions occur |
Chloroplast | found in green plants; site of photosynthesis |
Guard cells | cells that surround the stomates; open & close to control water loss |
Stomates | openings at the undersides of leafs that allow water and gas exchange between plant & environment |
Absorption | to take in by diffusion (no energy needed); nutrients, water, oxygen |
Synthesis | the putting together of substances; making a larger molecule from smaller ones: aa + aa --> protein; simple sugar + simple sugar --> starch or carb; 3 fatty acids + glycerol --> lipid |
Active transport | low to high concentration with the use of energy |
Passive transport or diffusion | high to low without the use of energy |
Deletion | removal of nitrogenous bases resulting in a shortening of the segment of DNA |
Insertion | addition of nitrogenous bases resulting in a lengthening of the DNA segment |
Substitution | replacing of one nitrogenous base with another |
Replication | make an exact copy of the DNA segment |
Consequence | a result of an action |
Digestion | to break down large nutrient molecules into smaller ones by use of enzymes (starch --> simple sugars, proteins --> amino acids, lipids --> fatty acids & glycerol) (opposite of synthesis) |
Phenotype | genetic characteristics that can be observed |
Genotype | genetic make up of trait |
Niche | job or role of organism in the ecosystem |
Habitat | place where an organism lives |
Ecological succession | the replacement of organisms in an environment due to environmental changes |
Antibody | substance produced by the immune system (WBCs) to fight off infection |
Hypothesis | educated guess as to the answer to a question or problem |
Validity | the ability to obtain the same results with repeated testing (single variable, large sampling, repeatable) |
Clone | an organism that is genetically identical to the organism from which it was produced |
Inference | a conclusion or deduction based on observations |
Prey | animal that is hunted and eaten |
Predator | animal that does the hunting |
Carrying capacity | the largest population of any single species that an area can support |
Feedback | action will result in a reaction to return system to equilibrium |
Positive feedback | action will result in increase of the reaction |
Negative feedback | action will result in decrease of the reaction |
Created by:
jgarrisi
Popular Biology sets