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Biology 9 Weeks- 1-8

QuestionAnswer
formed when one or more electrons are transferred from one atom to another ionic bond
it is a mixture of two or more substances which are evenly distributed solution
smallest basic unit of matter atom
a substance consisting entirely of one type of atom element
a type of chemical bond formed by sharing of electrons between atoms covalent bond
the small joining of larger molecules monomer
large compound formed from combinations of smaller units polymers
a process that changes one set of chemicals into another set of chemicals chemical reaction
element or compound that enters into a chemical reaction reactant
a substance that speeds up the rate of a chemical reaction catalyst
large carbohydrate macromolecule polysaccharide
an attraction between molecules of the same substance cohesion
mixture of water and non-dissolved material suspension
a pH less than 7 acid pH
a protein that lowers the energy of activation for a reaction enzyme
a polar covalent molecule, universal solvent water
substance in which a solute is dissolved to form a solution solvent
a pH greater than 7 basic pH
proton, neutron, and electron subatomic particles
TRUE or FALSE? An electron is a negatively charged subatomic particle. true
TRUE or FALSE? Neutron is a non charged subatomic particle. true
TRUE or FALSE? Proton is a positively charged subatomic particle. true
TRUE or FALSE? DNA is the nucleic acid that stores and transmits genetic information. true
TRUE or FALSE? A nucleotide is composed of a six carbon sugar, phosphate group, and a nitrogenous base. false
TRUE or FALSE? Glucose is a monosaccharide. true
If two electrons are shared in a single covalent bond and four electrons are shared in a double covalent bond how many electrons are shared in a triple covalent bond? 6
packaging/ storage organelle Golgi apparatus
contains nearly all cellular DNA nucleus
Captures sunlight energy and converts to chemical energy chloroplasts
helps cell maintain its shape cytoskeleton
has both smooth and rough forms that produce lipid and proteins endoplasmic reticulum
found inside the nucleus nucleolus
simpler cell type, does not have organized nucleus prokaryote
a cell type that separates genetic material from the rest of the cell's structure eukaryote
a structure that regulates what enters and leaves the cytoplasm in both plant and animal cell cell membrane
is a feature of only plant cells cell wall
is the migration of water across a semipermeable membrane osmosis
passively moves substances into and out of the cytoplasm diffusion
TRUE or FALSE? A tissue is composed of a group of similar cells. true
TRUE or FALSE? The core of the cell membrane is made of a lipid monolayer. false
TRUE or FALSE? An isotonic solution has the same concentration of solute on both sides or a membrane. true
TRUE or FALSE? Hypertonic extra cellular fluid causes water to migrate into the cytoplasm. false
Active transport requires energy and movement against a concentration gradient. Which is NOT an example of active transport? a) phagocytosis b) diffusion c) pinocytosis B
Endocytosis is movement of fluid or liquid. a) into the cytoplasm b) out of the cytoplasm A
Concentration of a solution is a) amount of solute/amount of solvent b) amount of solvent/amount of solute A
Hypotonic solutions have a) more solute than solvent b) less solute than solvent B
Which is not an example of an organelle? a) Vacuole b) Cytoplasm c) ribosome B
Which organelle does NOT contain its own DNA? a) Chloroplasts b) Mitochondria c) Lysosomes C
Use less than 20 words to explain the theory of ENDOSYMBIOSIS. The theory that eukaryotic cells are formed from a symbiosis between several prokaryotic organisms.
the ability to maintain constant conditions (stay the same) homeostasis
a collection of living matter enclosed by a barrier membrane cell
a decimal system of measurements of units scaled on multiples of 10 metric system
proven explanations of a phenomenon that occurs int he natural world theory
proposed, but UNPROVEN explanations of observed facts hypothesis
device that produces images of structures too small fro viewing by the unaided eye microscope
the study of all living things biology
TRUE or FALSE? It is necessary to place your nose directly over containers to smell odors in the lab. false
TRUE or FALSE? If you wear contact lenses it is NOT necessary to wear goggles in the lab. false
TRUE or FALSE? If you are not working with chemicals it is alright to wear open sandals in the lab. false
centrifuge spinning of cell parts cell fractionation
science that describes the living world biology
chemical reactions carried out by cells metabolism
orderly way to learn about the natural world science
well tested explanation; unifies observations theory
factor purposely changed in an experiment manipulated variable
two cell lines unite to produce offspring sexual reproduction
information gathered from observations data
it is based on prior knowledge/ experience inference
signal to which on organism responds stimulus
TRUE or FALSE? Homeostasis makes internal conditions fairly constant to promote survival. true
TRUE or FALSE? All living things reproduce. true
TRUE or FALSE? LIving things need to obtain and use materials and energy. true
TRUE or FALSE? Living things change over time. true
TRUE or FALSE? Good scientists are skeptics. true
these practices keep persons handling dangerous substances from injury lab safety
a way to prove or disprove a hypothesis scientific method/theory
a way to visualize living cells light microscope
a way to view deepest details of cell of structure (non-living material) electron microscope
also known as a dependent condition in an experiment responding variable
a way to maintain constant conditions for other factors in an experiment controlled experiment
a theory that was disproves over many years regarding the origin of life spontaneous generation
develops from a single original cell growing in a nutrient solution cell culture
allows scientists to make accurate predictions theory/scientific method
uses multiples of ten to make measurements metric system
Photosynthesis Equation 6 H20 + 6 CO2 -- radiant energy -> C6 H12 O6 + 6 O2
3 factors affecting photosynthesis: 1) LIGHT 2) WATER 3) TEMPERATURE
Created by: Hannahfrances
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