chapter 3 exam

24 cards·by christamathew5

Study this deck

variable

factor being tested

control

used for comparison

hypothesis

an educated guess

organism

a living thing

cells

the basic unit of life

stimulus

anything an organism respods to

response

the reaction of an organism to a stimulus

Homeostasis

the ability to maintain stable conditions no matter what is going inside or outside of the body

development

all the changes an organism may undergo as they grow

adaptation

any characteristic an organism has that makes it better able to survive in its environment, they are inherited

growth

increase in the number of cells

biogenisis

theory that states that living things come only from other living things

characteristics of life

made up of one or more cells,use energy, they move, adapt, reproduce, produce waste, have life spans

centrioles

found only in plant cells and involved in cell division

enzyme

proteins that speed up chemical reactions

selectively permeable

the cell membrane's ability to allow some materials into and out of the cell

metabolism

the total of all activities of an organism that enables it to stay alive, grow and reproduce

producers

organisms that can make their own food

consumers

organisms that cannot make their own food.

fermintation

creates alcohol and carbon dioxide

respiration

takes place in mitochondria

photosynthesis

takes place in chloroplasts

fermintation

takes place in cytoplasm

lactic acid

causes muscles to be sore