Semester One Finals Flashcards
possible explanation to question/problem; based on prior knowledge; tested in experiment
hypothesis
something that changes or varies in an experiment
variable
variable that is changed by the scientist; in the egg lab, the type of solution was independent
independent
variable that changes because of independent; in the egg lab, the mass of the egg was dependent
dependent
data that does NOT have numbers; examples include color, shape, etc.
qualitative
data that has numbers; examples include mass, height, length
quantitative
broad scientific explanation that is based on lots of evidence
theory
study of living things and their interactions
biology
maintaining a stable internal environment
homeostasis
all of the chemical reactions that occur inside the body of a living thing
metabolism
a single living thing
organism
reacting to the environment
responsiveness
passing the genetic information from one generation to the next
heredity
producing offspring
reproduction
single-celled organism
unicellular
organism with two or more cells; usually millions of cells (like humans)
multicellular
result of reproduction; “babies”
offspring
study of plants
botany
study of animals
zoology
study of microscopic organisms
microbiology
study of the body
physiology
simplest chemical substance
element
combination of two or more different elements; examples: CO2, H2O, etc.
compound
substance with pH below 7
acid
substance with pH above 7
base
substance with pH equal to 7
neutral
substances that are made in a chemical reaction
products
substances that are the starting materials (ingredients) of a chemical reaction
reactants
used for short-term energy; building block is monosaccharides
carbohydrate
used for long-term energy; building blocks depend on the type of lipid
lipid
used for structure and enzymes; building blocks are amino acids
proteins
used to pass on genetic information; building blocks are nucleotide
nucleic acid
protein that helps start biochemical reactions; lowers the activation energy
enzyme
evenly mixed substances; examples: Kool-Aid, salt water, etc.
solution
simple cells; have single loop of DNA without a nucleus; bacteria
prokaryotic
complex cells; have a nucleus and organelles; many linear DNA molecules; animals, plants, etc.
eukaryotic
structure that controls cell functions; contains DNA
nucleus
found in nucleus; produces ribosomes
nucleolus
produces proteins
ribosomes
has ribosomes attached to it; produces and transports proteins
rough ER
NO ribosomes attached to it; produces and transports lipids
smooth ER