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Ch 20, 11,9,8 vocab for exams

Terms in this set (42)

Trait
A feature of a living thing
Homeostatis
the regulation of an organism's internal, life-maintaning despite changes in its environment.
Hereditary
relating to the passing down of traits from parents to its offspirng
Kingdom
boarder groups preceding species
Theory
an explanation of events or circumstances based on scientific knowledge resulting from repeated test and observations
Cell theory
observations and conclusions and those of others are summarized. 1. All organisms are made up of one or more cell. 2. The cell is the basic unit of organization in an organism. 3. All cells come from other cell
Prokaryotic cells
cell without membrane - bound structures
Eukeryotic cells
cell with membrane - bound structures
Organic compounds
contain carbon and are usually associated with living things or things that use to be living: four groups of organic compounds make up all living things.
Inorganic compounds
made up of elements other than carbon.
Active transport
when a input of energy is required to move materials through out a cell membrane
Diffusion
the movement when molecules move from one area where there are more of them to an area where there are less of them.
Osmosis
the diffusion of water through a cell membrane
passive transport
the movement of substances through the cell membrane without the input of energy
Equilibration
to bring into or keep in
gene
A gene is the molecular unit of heredity of a living organism.
chromosome
a structure of DNA, protein, and RNA found in cells.
haploid
"single form" sex cells that don't have pairs of chromosomes.
diploid
when cells have similar pairs of chromosomes
DNA
Deoxyribonucleic acid is a molecule that encodes the genetic instructions used in the development and functioning of all known living organisms and many viruses.
Incomplete dominance
when the offspring of two homozygous parents show an intermediate phenotype. (Red flower + white flower = pink flower.)
Polygenic inheritance
when a group of gene pairs acts together to produce a trait. (Like eye color.)
Physical change
changes affecting the form of a chemical substance, but not its chemical composition.
Matter
composed of atoms, and excluded other energy phenomena such as light or sound.
Solubility
the property of a solid, liquid, or gaseous chemical substance
Condensation
the change of the physical state of matter from gas phase into liquid phase
sublimitation
a solid changes directly into a gas
vaporization
when a liquid changes into a gas
Chemical change
substances changed into different substances.
Law of Conservation of Mass
any system closed to all transfers of matter and energy, the mass of the system must remain constant over time.
It can die or go extent.
What can happen if homeostasis gets out of balance...
70% It can carry materials to and from a cell in to a cell and between a cell.
What percent of water are humans made of?? And what functions does water preform???????
Food water shelter
What three things do humans need to survive????
Chloroplast and lysome
what two things do plant cells have that animal cells have?
good sanitary conditions and vaccenines. B/c you could get a diease that you cant get rid of.
Name two public health measures that should be used to help prevent viruses... why are these so important.
Producers can make their own food and consumers can't make their own food.
Compare and contrast producers and consumers...
carbon dixoid
What is the most important inorganic chemical in life?
6 CO2 + 12 H2O + photons → C6H12O6 + 6 O2 + 6 H2O. The left side is glucose. glucose
What is the equation for photosynthist???? how is this equation different from the left to the right??? what is the oppisite of photosynsiths.
AA, BB, OO, AB, AO, BO
What are the six different blood types??
If three pairs of chromosomes are in a fertlized egg.
How are people born with Down's Syndrone??
Trimmed, bleached- Chemical change b/c you can't get your hair back that lenght or that color instantly. braided- physcal change you can get it back the way it was before you got it braided.
Study guide #10
P.R. the substance never changes C.R. the substance changes.
compare and contrast physcial and chemical reaction
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