Bio Midterm Vocabulary
Terms in this set (48)
a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
the power to influence or direct people's behavior or the course of events.
variable that does change
variable that does not change
a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.
a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained.
controls the amount of light.
used for rough focus with low power objectives.
used for fine focus with high objective lens.
does not contain both carbon and hydrogen.
contains both carbon and hydrogen.
a substance that has a molecular structure consisting chiefly or entirely of a large number of similar units bonded together
a molecule that can be bonded to other identical molecules to form a polymer.
living things use this as their main source of energy. monomer-sugar polymer-starch.
enzymes digest into glucose.
enzymes synthesize to form starch.
enzymes digest into amino acids.
enzymes synthesize to form protein.
fats, oils and waxes. made up of glycerol and fatty acids. part of the plasma membrane.
a carboxylic acid consisting of a hydrocarbon chain and a terminal carboxyl group, especially any of those occurring as esters in fats and oils.
stores and transmits hereditary or genetic information. monomer-nucleotides polymer-nucleic acid.
5 carbon sugar, a phosphate group and a nitrogen base.
speeds up a chemical reaction without being used.
enzyme binded to substrate.
indicates the amount of hydrogen ions in a solution.
less than 7.
more than 7.
All living things are composed of one or more cells. Unicellular/Multicellular
Cells are the basic units of organization of organisms. Cells-> tissues-> organs-> systems-> organism
New cells are produced from preexisting cells
boundary between the cell and its environment, and helps maintain homeostasis.
some stuff can pass the cell, and some stuff cannot.
made of cellulose, inflexible.
site of protein synthesis.
site of photosynthesis.
large, round structure, information storage site and controls all cell activity.
located in the nucleus, involved in the production of ribosomes.
transports materials throughout the cell.
sac-like structure used to store water, wastes, food, ect.
small organelles filled with enzymes, suicidal sacs, destroy damaged or old cell parts.
no net exchange.
net movement of particles from an area of high concentration to an area of low concentration until dynamic equilibrium is established.
the diffusion of water.
high to low.
movement of molecules from low to high.
the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water.
molecules needed for active transport (energy).
respiration: the metabolic processes whereby certain organisms obtain energy from organic molecules;
the tendency toward a relatively stable equilibrium between interdependent elements