Bio test Flashcards
the scientific study of living organisms
Biology
gathering information with the senses (like sight)
Observation
A theory is an explanation that is based on observations.
Hypothesis
(A:an educated guess. B:should be in the if/then format)
a scientific investigation
expirement
a list of instructions on how to perform the experiment
Procedure
the act of making notations about the object of events involved in the experiment using your senses.
Observation/Data Collection
use the data collected to see whether or not the hypothesis is supported or not.
Conclusion
any living thing
organism
smallest unit of life all (answer) have the capacity to survive and reproduce on its own
cells
the capacity to obtain and convert energy from its surroundings and use that energy to maintain itself, group, and make more cells.
metabolism
the state in which physical and chemical aspects of internal environment are being maintained within ranges suitable for cell activities.
homeostasis
all organisms live and interact with other organisms and their environment; The branch of biology that studies the interactions of organisms with one another and their environment
ecology
one parent produces copies of itself
asexual reproduction
two parents, contributing hereditary information to offspring
sexual reproduction
hereditary molecule that controls all the cell activities
DNA
a beneficial that increases organism’s chance for survival and reproduction.
adaption
changes in living things over time
evolution
the smallest unit of matter that cannot be broken down by chemical means
atoms
atoms combine to form molecules
molecule
any molecule that contains carbon
organic molecule
the building blocks of all cells
4 MACROmolecules
life’s energy source
carbohydrate
a carbohydrate stored in the liver and in the mucles
glycogen
the main structural components of cells (cellular membranes) and some organelles
Lypids
multifunctional
protiens
proteins; speed-up chemical reactions
ezymes
provides genetic information that is important for all reproduction and cellular function
nucleic acid
deoxyribonucleic acid
DNA
ribonucleic acid
RNA
water’s polarity is responsible many of it’s unique properties
Polar molecule
a positively charged hydrogen atom in one molecule of water is attracted to the negative charge of an oxygen atom in another molecule
Hydrogen bonding
water can dissolve more substances than any other liquid
universal solvent
cohesion water molecules to stick together
cohesion
surface tension is a measure of the strength of the water’s surface; water has a higher surface tension that most other liquids
cohesion:surface tension
the attraction between water molecules of two different substances
adhesion
