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Biology Finals 08
terms and definitions
87
Biology
10th Grade
06/17/2008

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Cards

Term
Plants in the light give off.... (2)
Definition
Glucose and Oxygen
Term
Plants in the dark give off... (3)
Definition
Energy, Carbon Dioxide(CO2), and Water(H2O)
Term
Photosynthesis: Reactants take in...(3)
Definition
Carbon Dioxide, Energy, and Water
Term
Photosynthesis: Products Give out... (2)
Definition
Oxygen and Glucose
Term
Cellular Respiration: Reactants take in...(2)
Definition
Oxygen and Glucose
Term
Cellular Respiration: Products Give Out... (3)
Definition
Carbon Dioxide, Energy, and Water
Term
Define hypothesis
Definition
An educated guess
Term
Define theory
Definition
A statement that has been tested many times but can be changed.
Term
Define Autotroph
Definition
an organism that produces its own food
Term
Define Heterotroph
Definition
An organism that cannot produce its own food
Term
What did Theodore Schwann contribute to the cell theory?
Definition
He reported that animals are also made out of cells.
Term
Name three parts of cell theory
Definition

1.Cells are basic unit of life

2.All organisms are made of one or more cells

3.)All cells arise from pre-existing cells (no "brand new" cells are made)

Term
Define Prokaryotes
Definition
Organisms whose cells never contain a nucleus such as Bacteria and their relatives.
Term
Define Eukaryotes
Definition
Organisms whose cells always or usually contain a nucleus or nuclei such as plants, fish, and mammals.
Term
Skin cells
Definition

to keep your insides intact and inside your body

Term
Nerve cells
Definition
send messages to your brain
Term

Brain cells

Definition
Help you think and decide your actions
Term
Cell membranes
Definition
controls the movement of the cell
Term
Genes are found in... (2)
Definition
nucleus and chromosomes
Term
True or false: viruses are made out of cells
Definition
FALSE
Term
Nucleus
Definition
controls the look and development of the cell
Term
Chromosomes
Definition
control the look because of genes and DNA
Term

Mitochondria

Definition
Provides energy for cell
Term
Cell wall
Definition
protects cell and keep the cell's shape
Term
Ribosomes
Definition
make protein for cell
Term
permeable membrane
Definition
everything can go through
Term
semi-permeable membrane
Definition
somethings go through
Term
impermeable membrane
Definition
nothing can go through
Term
Diffusion
Definition
movement of molecules from areas of high concentration to low until evenly distributed.
Term
Osmosis
Definition
Diffusion of water molecules through semi permeable membrane
Term
Genetic diseases
Definition
A disease that is passed on from a relative
Term
Stem Cells
Definition
Able to clone or heal people with the same blood type
Term
Ethics
Definition
an organized system to determine what is right and what is wrong.
Term
Autonomy
Definition
Respect for an individual persons right to choose for themselves.
Term
Do good/Do no harm
Definition
Helping the most number of people or harming the least number of people
Term
Justice
Definition
Equal treatment for all dividing resources or costs equally
Term
Meiosis
Definition
making sperm and egg cells
Term
How many chromosomes is in every human body?
Definition
46
Term

how many chromosomes are in human sperm or egg cells?

Definition
23
Term
DNA
Definition
code of how an organism is built
Term
Gene
Definition
a particular part of DNA for a certain trait
Term
Chromosomes
Definition
tightly wound bundles of DNA
Term
What are the 4 letters in the sequence of DNA?
Definition
AT CG
Term
In the DNA sequence... Letter A always goes with
Definition
T
Term

In the DNA sequence... Letter C always goes with

Definition
G
Term
Pedigree
Definition
Pure breed and tracing a family member in a family tree
Term
carrier
Definition
carrying a recessive gene that doesn't show
Term
Homozygous
Definition
Two pairs of dominant genes or recessive
Term
Heterozygous
Definition
1 dominant and 1 recessive gene
Term
Karyotypes
Definition
process of finding a defective recessive gene of a disease early in childhood. (picture of chromosomes)
Term
Why are more males affected by hemophelia rather than females?
Definition
Females have two big X's and the males have the short y chromosome which cant hide the recessive gene.
Term
When is it possible for a female to have hemophelia?
Definition
If the big X has hemophelia
Term
What is different about the male and female karyotypes?
Definition

Males have Xy

Females have XX

Term
Genotypes
Definition
genes inherited from parents such as WW, ww, or Ww
Term
Phenotypes
Definition

Physical characteristics from genotypes such as WW= White

ww=Black

Term
When does the DNA make a copy of itself?
Definition
Before it transfers to another cell
Term
Why s it critical that each cell gets a complete and exact copy of DNA?
Definition

Another cell will copy the mutated original

Term
Identify the 3 steps of DNA replication
Definition

1.Untwists

2.Unzips

3. Each side used as a pattern to build a new side

Term
Mutation
Definition
Mistakes when copying DNA
Term
When do mutations happen?
Definition

1.Chemicals

2.Radiation

3.Random

Term
Enzymes
Definition
Types of proteins
Term
What are proteins made out of?
Definition
Amino Acids
Term
The order that the amino acids are placed in is determined by the ______ _____.
Definition
genetic code
Term
Genetic code
Definition

DNA inherited from Mom and Dad

Term
What makes one enzyme different from another enzyme?
Definition
Enzymes have different orders of amino acids which changes the shape and job.
Term
What is the relationship between enzymes and physical traits?
Definition
Enzymes determine the physical traits
Term

what is C-O-N-P-T-T

Definition

Consistent

Observable

Natural

Predicted

Tentative

Testable

Term
What did Charles Darwin do?
Definition
Discovered the theory of evolution
Term
Natural Selection
Definition
Organisms with traits that allow them to survive long enough to reproduced, pass on, and win!
Term
Evolution
Definition
change to adapt over time through natural selection
Term
Species
Definition
Organisms so closely related they can interbreed naturally and produce fertile offspring
Term
What defines a mammal?
Definition
warm blooded, grows fur, vertebretes, and nurse young (milk).
Term

Geographic Isolation

Definition

members of the same population physically seperated.

 

Ex: mountain or hill that seperates members from the same tribe.

Term
Reproductive Isolation
Definition

Cannot have offspring of their own

 

EX: Ligers and Tigons

Term
Beneficial mutation
Definition
mutation to help organism survive better
Term
Neutral mutation
Definition
no good or bad result
Term
Harmful mutation
Definition
Prevents the organism from surviving
Term
Name four types of natural selection
Definition

genetic variation

EX: Passing on genes for off spring

overproduction of offspring

produce more off spring than can survive

struggle for existence

competition for food, mates, etc.

Differential survival and reproduction

Depending on environment

Term
Adaptation
Definition

to change easily into a different environment

EX: Beneficial mutation

Term
Why is biodiversity important?
Definition
Variation in population in order to avoid extinction by the same cause (predator or disease)
Term
What traits do all primates share?
Definition
rotating shoulder, eyes in front of head, and opposable thumbs
Term
Name 3 forms of evolution
Definition
fossils, embryos, and DNA mutations
Term

The difference between common ancestor and relatives are....

Definition

common ancestors is where organisms descended from. The decendants are related to each other.

Term
When did we share a common ancestor with apes?
Definition
5-6 million years ago
Term
Homonids
Definition

All anthropoids that belong to the human family

Term
Homosapiens
Definition
modern humans
Term
Name 3 ways that humans differ from apes
Definition

1. walked on 2 feet

2. brain is larger

3. humans have a voice box

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