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level: Level 1

Questions and Answers List

level questions: Level 1

Question	Answer
deals with the natural world, which can be detected, observed, and measured?	science
is open to challenge by anyone at any time on the basis of evidence	science
based on evidence from observation/experiments	science
Observation>Hypothesis>Experiments>Conclusion(or correction of hypothesis)	Scientific Method
any aspect of nature capable of change	variable
two variables sharing cause and effect relationships	correlation
manipulation of variables in the natural world	experiments
functioning systems capable of reproduction and metabolism through DNA	Life
self-contained unit surrounded by a plasma membrane	cell
genetic material containing instructions for LIFE	DNA
segment of DNA	gene
capture, storage, and use of enery by a life	metabolism
obtainers of energy from non-living surroundings	producers
obtainers of energy from living surroundings	consumers
species sub-group in a particular habitat	population
organisms that interbreed under natural conditions	species
three broad categories of life	domains
four kingdoms of Eukarya	animalia fungi protista plantae
building blocks of matter	atoms
two or atoms held together	molecule
molecule of life, generally containing carbon	biomolecule
anything that occupies space	matter
92 types of pure matter incapable of being broken unless changing to a different one	elements
properties of an atom	proton neutron electron
contains protons and neutrons	nucleus
number of protons	atomic number
number of prot +neut	atomic mass
elements with a extra or less neutrons than expected	isotopes
electron sharing between atoms	covalent bonds
number of first three electron shells	2- 8(2+6) -18 (2+6+8)
changing charges comes from .....	losing or gaining electrons
bond that forms from oppositely charged electrons	ionic bond ex:salts
one end of molecule positive, the other negative	polar molecule
same end charged molecules	non-polar
the organic molecules	sugars amino acids, fatty acids, nucleotides
repeating units in polymers	monomers
forms of sugar	mono-di-polysaccharides
polysaccharides found in plants	starch and cellulose
proteins are made from....	amino acids
formations of amino acids	polypeptides
destruction of protein...	denaturation
a complex of vesicles and folded membranes that package protein then sends out vesicles	Golgi Apparatus
an organelle in the cytoplasm of eukaryotic cells containing degradative enzymes	lysosome
combination of chemicals that maintains pH	buffer
consists of an alpha carbon attached to a hydrogen atom, an R group, an amino group, and a carboxyl group	amino acids
Fatty acids where carbon atoms in the hydrophobic chain that havea single covalent bond	saturated
fattys acids with a double covalent bond	unsaturated
Three fatty acid molecules bonded to a glycerol molecule make up ....	triglycerides (fat)
a glyceride which has a hydrophobic fatty acid tails bonded to a hydrophilic head	phospholipid
class of lipids that contain four fused hydrocarbon rings	sterols
a compound of the sterol type used to build steriod hormones	cholesterol
An Energy-carrying Nucleotide Found In All Living Organisms	Adenosine Triphosphate (ATP)