Card Set Information
science bio biology
Scientists do this so others can try to reproduce the results, repeat their work, and their experiment procedures can be reviewed.
This allows cells in multi-cellular organisms to perform different functions.
Instrument used to view highly magnified 3-dimensional images of the surface of objects.
scanning electron microscope
These are important when working with animals, in the field, and in the lab.
Science is different than other disciplines because it relies on ____ ____.
When a hypothesis has enough supporting data, it becomes a ____.
Factors that living things respond to.
A single cell develops to form a group of cells which is called a ____ ____.
These can arise from an informed, creative imagination, from prior knowledge, or from logical inferences.
Internal conditions remain fairly constant.
Instrument used to separate substances from each other.
This can be tested by scientists.
A well tested explanation.
A term that includes the sciences of zoology, botany, and paleontology.
Different cell parts are separated by this technique.
Level of organization that includes all other levels.
Explains why birds migrate for the winter.
response to environment
Type of electron that is available to form bonds.
Have H+ ion concentration that are lower than pure water.
Process when one chemical changes into a different one.
these change the speed of reactions in living cells
these are made up of electrons, protons, and neutrons
most abundant compound found in living things
an example of a carbohydrate
describes how chemical reactions that release energy often happen
atoms of the same element with the same number of protons but with a different number of neutrons
type of mixture produced when sugar or salt is stirred into boiling water
type of compound that can control the rate of reactions, help to fight disease, build tissues, and regulate cell processes
type of compound that work best at a specific pH, are classified as proteins, and their shape allows them to do their job
these can be used to treat cancer, be used as "traces" in organisms, determine ages of rocks and fossils, and kill bacteria that spoil food
scale used to measure acid-base levels
the ingrediants in a chemical reaction that start the reaction
these lower the activation energy of a chemical reaction
sharing of a pairs of electrons
this is what a catalyst can do
accelerates chemical reaction
type of image produced by a scanning electron microscope
organelle that breaks down food into molecules the cell can use
you will not find this structure in animal cells
type of organism that has specialized cells to perform different tasks
a group of organs that work together to perform a specific function
first to identify and see cork cells
cells that lack a nucleus
structure that makes proteins using instructions from the nucelus
structure that regulates what enters and leaves the cell
examples of an organ
cells, tissues, organs, organ systems
levels of organization
found that all plants and animals are made of cells
Schleiden & Schwann
type of cells that contain a nucleus
this organelle is found in plant cells, but not in animal cells
moelcules constantly move and collide with each other
nerve, muscle, and connective are all types of ____
the cell theory applies to ____
chromatin, DNA, and the nucleolus are found in the ____
microtubules and microfilaments carry out ____
requires a cell to expend energy to move materials across the membrane
a group of similar cells that perform a particular function
type of instrument that can reveal details 1000 times smaller than with a light microscope
organelle found in the cytoplasm that is involved in protein synthesis
cell structure that helps the cell move and maintain its shape, and helps organelles move within the cell
an animal cell in fresh water will burst from ____ ____ that causes water to move into the cell
DNA is found in the ____ in eukaryotes
all three types of RNA are involved in ____ ____
genes contain instructions for assembling ____
the lac operon in E. coli controls the breakdown of ____
these determine the location of a dog's ears on its head
these become more tightly packed during mitosis
what does transcription produce?
this type of RNA is a blueprint of the genetic code
lac genes bind to the ____ when the lac repressor turns off the genes
DNA with one new strand and one original strand
RNA is transcribed from DNA in the ____
type of mutation that is not categorzied as a gene mutation
found in prokaryotes but is not part of a eukaryotic gene
in DNA, the percentage of pyrimidines is equal to the percentage of purines; this is due to ____ ____
phosphate groups, cytosine, and guanine are found in ____ ____
DNA & RNA
because there are 64 different combinations of triplets but only 20 amino aicds, amino acids can be specified for by more than one kind of ____
in eukaryotes, ____ ____ allows for cell specialization
HOX genes determine an animal's ____ ____ ____
basic body plan
RNA is found in how many main types?
Plants use carbon dioxide, water, and sunlight for photosynthesis to produce ____ and ____
oxygen and high energy sugars
chlorophyll is found in what part of the chloroplast?
where in the chloroplast does the Calvin cycle take place?
the increase in what environmental factor causes the rate of photosynthesis to increase and then level off?
organisms that cannot make their own food
light, carbon dioxide, and water are all used in the reactions of
the place where the light-dependent occur
the main product of the Calvin cycle
high energy sugars
scientist that concluded that plants gain most of their mass from water
According to the equation of photosynthesis, 6 molecules of carbon dioxide will produce 6 molecules of ____
Photosystems I and II are found in the ____ ____
the gas released by a plant growing in sunlight
chlorophyll does not absorb light well in the ____ region of visible light
a stack of thylakoids is defined as a ____
the substance needed to start glycolysis
the substance needed to start the Krebs Cycle
can be produced from the energy of the electrons passing along the electron transport chain
cellular respiration produces ____ ATP molecules from 1 molecule of glucose
glycolysis requires an input of ____ to start
produced by the Krebs cycle
____ ____ releases energy more slowly than fermentation does
O is the equation for ____ ____
ATP, NADH, and pyruvic acids are all products of ____
this type of "chain" can be found in plants, animals, and prokaryotes
what cellular respiration breaks down to release energy?
this causes bubbles to form in bread during bread making
the organelle where electron transport occurs in eukaryotes
this is a product of cellular respiration
this is needed for the conversion of pyruvic acid into lactic acid
glycolysis produces a net gain of ____ ATP molecules