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Mr. Smith Essay Cards
WSHS
52
Biology
9th Grade
12/11/2012

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Term
Isosotopes are atoms of the same element with the same number of protons and...
Definition
a diffferent number of neutrons
Term
Ice floats on water because...
Definition
water expands when it freezes
Term
A substance with a pH of 6 is called...
Definition
an acid
Term
In chemical reactions, atoms are...
Definition
rearranged
Term
3 Forms of energy that may be released during a chemical reaction...
Definition
heat, light, sound
Term
A substance that accelerates the rate of a chemical reactionis called a
Definition
catalyst
Term
3 functions of the nucleus
Definition
storing , controling most of the cell's processes, containing the information needed to make proteins
Term
Which organelle would you expect to find in plan cells but not in animal cells
Definition
chloroplast
Term
WHich means of particle transport requires input of energy from cells
Definition
active transport
Term
An animal cell that is surrounded by water will burst because the osmotic pressure causes
Definition
water to move into the cell
Term
all of the following are types of tissue EXCEPT. muscle, connective, digestive, nerve
Definition
digestive
Term
Organisms that cannot make their own food and must obtain energy from the foods they eat are called
Definition
heterotrophs
Term
What are the three parts of an ATP molecule
Definition
adenine, ribose, and 3 phosphate groups
Term
A student is collecting the gas given off from a plant in warm, sunlight. The gas being collected is likely..
Definition
oxygen
Term
What are the products of the light-dependent reactions.
Definition
oxygen gas, ATP, & NADPH
Term
The products of glycolysis are
Definition
NADH, ATP & pyruvic acid
Term
Milk is converted to yogurt under certain conditions when the microorganisms in the milk produce acid due to...
Definition
lactic acid fermentation
Term
The Krebs cycle starts with ...
Definition
pyruvic acid and yields carbon dioxide
Term
The ETC can be found in..
Definition
prokaryotes, animals & plants
Term
________ & _________ pass high-energy electrons into the ETC.
Definition
NADH & FADH2
Term
Breathing heavily after a foot race is your body's way of
Definition
repaying an oxygen debt
Term
T or F: Alcoholic fermentation is a source of energy during excercise
Definition
F
Term
Plants cannot release energy from glucose using
Definition
Photosynthesis
Term
T or F: The symbol for the isotope oxygen-18 is written O18+
Definition
F
Term
T or F: The cytoskeleton helps to move organelles within the cell
Definition
T
Term
T or F: during the light independent reactions, plants use the energy in ATP and NADPH to build high energy sugars
Definition
F
Term
T or F: If a plant is placed in a greenhouseheld at 40 C, the plant will probably increase its normal rate of
photosynthesis
Definition
F
Term
T or F: The Krebs Cycle releases energy in the form of ATP
Definition
T
Term
If an atom contains 15 protons, it must contaain 15...
Definition
electons
Term
Unlike the resulting stable compound--table salt-- the two gases making up this compund ...
Definition
explosive (reactive)
Term
A chemical bond formed by the transfer of electrons is an...
Definition
ionic bond
Term
Due to _________ forcesk, the design of a gecko's feet enables it to climb up vertical surfaces.
Definition
Van der Waals
Term
Water's _______ allows it to dissolve compounds such as table salt.
Definition
polarity
Term
Chemical reactions that _____ energy will not occur without a source of energy.
Definition
absorb
Term
The name of an enzyme usually ends in
Definition
-ase
Term
Eukaryotes contain specialized structures that perform important cellular functions. These structures are called
Definition
organelles
Term
During cell division, chromatin condenses to form _______, which are threadlike structures containing genetic material.
Definition
chromosomes
Term
Enzymes in the ________ _________ attach carbohydrates and lipids to proteins.
Definition
golgi apparatus
Term
Large molecules such as glucose that cannot cross the lipid bilayer can still move across the mebrane with a concentration gradient by ____________ ______________.
Definition
facilitated diffusion
Term
The cells in a multicellular organism have specific jobs. This is called ___________.
Definition
specialization
Term
_____________________ concluded that plants gain most of their mass from water alone.
Definition
Jan van Helmont
Term
A mebrane protein called ____________ allows H+ ions to pass through the thylakoid membrane.
Definition
ATP synthase
Term
Why are atoms considered nuetral?
Definition
atoms have equal numbers of electrons and protons
Term
What is a mass number?
Definition
the sum of protons and nuetrons in the nucleus of an atom
Term
What is a molecule?
Definition
the smallest unit of most chemical compounds
Term
What accounts for water's properties of adhesion and cohesion?
Definition
the ability of water to form multiple hydrogen bonds
Term
Where would you most likely find shared elecrons in a water molecule?
Definition
near the oxygen atom
Term
Sea water is _______ acidic then pure water.
Definition
less
Term
4 organic compounds?
Definition
carbohydrates, lipids, nucleic acids, & proteins
Term
Name two essential roles that enzymes play in cells.
Definition
1. regulating chemical pathways
2. releasing energy
Term
Why are six carbon dioxide molecules required to make one glucose molecule?
Definition
each carbon dioxide molecule contains 1 carbon atom & a glucose molecule contains 6 carbon atoms
Term
Who is the best card maker in the world?
Definition
Treadfoxx
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