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Life Science Test

Dichotomous Key An aid that is used to identify organisms and that consists of the answers to a series of questions
Chromosomes 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
Animalia A kingdom made up of complex, multi-cellular organisms that lack cell walls, can usually move around, and quickly respond to their environment
Golgi Body The cell organelle that helps make and package materials to be transported out of the cell
Lipid A type of biochemical that does not dissolve in water
Cell Membrane A phospholipid layer that covers a cell's surface and acts as a barrier between the inside of a cell and the cell's environment
Cell In biology, the smallest unit that can perform all life processes
Fungi A kingdom made up of nongreen, eukaryotic organisms that have no means of movement, reproduce by using spores, and get food by breaking down substances in their surroundings and absorbing the nutrients
Classification The division of organisms into groups, or classes, based on specific characteristics
Eukaryote An organism made up of cells that have a nucleus enclosed by a membrane; eukaryotes include animals, plants, and fungi, but not archaebacteria or eubacteria
Eubacteria A kingdom that contains all prokaryotes except archaebacteria
Endoplasmic Reticulum A system of membranes that is found in a cell's cytoplasm and that assists in the production, processing, and transport of proteins and in the production of lipids
Decomposer An organism that gets energy by breaking down the remains of dead organisms or animal wastes and consuming or absorbing the nutrients
Lysosome A cell organelle that contains digestive enzymes
Life science The study of living things
Homeostasis The maintenance of a constant internal state in a changing environment
Carbohydrate A class of energy-giving nutrients that includes sugars, starches, and fiber
Controlled Experiment An experiment that tests only one factor at a time by using a comparison of a control group with an experimental group
Prokaryote An organism that consists of a single cell that does not have a nucleus
Consumer An organism that eats other organisms or organic matter
Law A summary of many experimental results and observations
Producer An organism that can make its own food by using energy from its surroundings
Hypothesis An explanation that is based on prior scientific research or observations and that can be tested
ATP A molecule that acts as the main energy source for cell processes
Plantae A kingdom made up of complex, multicellular organisms that are usually green, have cell walls made of cellulose, can't move around, and use the sun's energy to make sugar by photosynthesis
Archaebacteria A kingdom made up of bacteria that live in extreme environments
Cell Wall A rigid structure that surrounds the cell membrane and provides support to the cell
Created by: PeetE