science~~~ 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
Question | Answer |
cell | the smallest unit that can perform all life processes; cells are covered by a membrane and have DNA and cytoplasm |
stimulus | anything that causes a reaction or change in an organism or any part of an organism |
homeostasis | the maintenance of a constant internal state in a changing environment |
sexual reproduction | reproduction in which the sex cells from two parents unite, producing offspring that share traits from both parents |
asexual reproduction | reproduction that does not involve the union of sex cells and in which one parent produces offspring identical to itself |
heredity | the passing of genetic traits from parent to offspring |
metabolism | the sum of all chemical processes that occur in an organism |
producer | an organism that can make its own food by using energy from its surroundings |
consumer | an organism that eats other organisms or organic matter |
decomposer | an organism that gets energy by breaking down the remains of dead organisms or animal wastes and consuming or absorbing the nutrients |
protein | a molecule that is made up of amino acids and that is needed to bulid and repair body structures and to regulate processese in the body |
carbohydrate | a class of energy-giving nutrients that includes sugars, starches and fiber; contains carbon, oxygen, and hydrogen |
lipid | a type of biochemical that does not dissolve in water; fats and steroids are lipids |
phospholippid | a lipid that comtains phosphorous and that is a structural compenent in cell memebranes |
ATP | adenosine triphosphate, a molecule that acts as the main energy source for cell processes |
nucleic acid | a molecule made up of subunits called nucleotides |
nucleotides | molecules that make up nucleic acids |
cell membrane | a phospholipid layer that covers a cell's surface; acts as a barrier between the inside of a cell and the cell's environment |
organelle | one of the smal bodies in a cell's cytoplasm that are specialized to perform a specific function |
nucleus | in a eukaryotic cell, a membrane-bound roganelle that contains the cell's DNA and that has a role in processes such as growht, metabolism, and reproduction |
prokaryotes | an organism that consists of a single cell that does not have a nucleus |
eukaryotes | an organism made up of cells that have a nucleus enclosed by a memberane; eukaryotes include animals, plants, and fungi, but not archaebacteria or eubacteria |
cell wall | a rigid structure that surrounds the cell membrane and provides support to the cell |
ribosome | cell organelle composed of RNA and protein; the site of protein synthesis |
endoplasmic reticulum | a system of membranes that is found in a cell's cytoplasm and that assists in the prodcution, processing, and transport of proteins and in the production of lipids |
mitochondrion | in eukaryotic cells, the cell organelle that is surrounded by two embranes and that is the site of cellular respiration |
golgi complex | cell organelle that helps make and package materials to be transported out of the cell |
vesicle | a small cavity or sac that contains materials in a eukaryotic cell |
lysosomes | a cell organelle that contains digestive enzymes |
nucleus | the organelle that contains the cell's DNA and is the control center of the cell |
vacuole | the organelle that stores water and other materials |
chloroplast | the organelle that uses the energy of sunlight to make food |
tissue | a group of similar cells that perform a common function |
organ | a collection of tissues that carry out a specialized function of the body |
organ system | a group of organs that work together to perform body functions |
organism | a living thing; anything that can carry out life processes independently |
structure | the arrangment of parts in an organism |
function | the special, normal, or proper activity of an organ or part |
diffusion | the movement of particles from regions of higher density to regions of lower density |
osmosis | the diffusion of water through a semi-permiable membrane |
passive transport | the movement of substances across a cell membrane without the use of energy by the cell |
active transport | the movement of substances across the cell membrane that requires the cell to use energy |
endocytosis | the processby which a cell membrane surrounds a particle and encloses the particle in a vesicle to bring the particle into the cell |
exocytosis | the process in which a cell releases a particle by enclosing hte particle in a vesicle that then moves to the cell surface and fuses with the cell membrane |
photosynthesis | the process by which plants, algae, and some bacteria use sunlight, carbon dioxide, and water to make food |
cellular respiration | the process by which cells use oxygen to producce energy from food |
fermentation | the breakdown of food without the use of oxygen |
cell cycle | the life cycle of a cell |
chromosome | in a eukaryotic cell, one of the structures in the nucleus that are made up of DNA and protein; in a prokaryotic cell, the main ring of DNA |
homologous chromosomes | chromosomes that have the same sequence of genes and the same structure |
miosis | in eukaryotic cells, a process of cell division that forms two new nuclei, each of which has the same number of chromosomes |
cytokinesis | the division of the cytoplasm of a cell |
heredity | the passing of genetic traits from parent to offspring |
dominant trait | the trait observed in the first generation when parents that have different traits are bred |
recessive trait | a trait that reappears in the second generation after disappearing in the first generation when parents with different traits are bred |
gene | one set of instructions for an inherited trait |
allele | one of the alternate forms of a gene that governs a characteristic such as hair color |
phenotype | an organism's appearance or other detectable characteristic |
genotype | the entire genetic makeup of an organism; also the combination of genes for one or more specific traits |
probability | the likelihood that a possible future event will occur in any given instance of the event |
meiosis | a process in cell division during which the number of chromosomes decreases to half the original number by two divisions of the nucleus, which results in the production of sex cells |
sex chromosome | one of the pair of chromosomes that determine the sex of an individual |
pedigree | a diagram that shows the occurrence of a genetic trait in several generations of a family |
Created by:
miko380
Popular Science sets