Advertisement Upgrade to remove ads

Homeostasis

process by which organisms maintain a relatively stable internal enviroment.

Permeability

the characteristic of allowing a substance to pass through.

Photosynthesis

the process by which plants and some other organisms use light energy to convert water and CO2 into oxygen and high energy carbonates such as sugars and starches.

Cellular Respiration

the process that releases energy by breaking down glucose and other food molecules in the presence of oxygen.

Synthesis

The combining of parts or elements to form a new substance.

Phenotype

PHysical characteristic of an organism. Think of a photograph that shows what an organism looks like.

Genotype

Genetic makeup of an organism.

Dominant

A trait that is always visible.

Recessive

A trait that is only seen if an allele is homozygous.

Mutation

Change in a DNA sequence that affects genetic information.

DNA

Deoxyribonucleic Acid that is a molecule found in cells of all organisms that contains the genetic information that controls what cell can do and what types of molecules it makes.

Nucleotides

The basic unit of DNA that is comprised of sugar, a phosphate group and a nitrogenous base.

Nitrogenous Bases

The four bases of DNA that make up nucleotides. (Adenine, Gaunine, Cytosine, Thymine)

Complementary Bases

The opposite, or complement, of a specific Nitrogenous Base.

Replication

The process during mitosis where DNA is replicated exactly to form 2 identical strands.

mRNA

During protein production, mRNA makes a copy of the DNA strand in order to carry that message to a different location in a cell.

Transcription

The process of copying the genetic information in the DNA and the mRNA.

Codon

3-letter blocks that are used in the mRNA to create amino acids and thus, proteins

Translation

The process in which a protein is produced from mRNA.

Deletion

A type of mutation that can occur where there is a portion of the DNA structure left off.

Genetic Engineering

Any method that people use to change an organisms's genes.

Prokaryotes

Organisms whose cells lack nuclei.

Eukaryotes

Organisms whose cells contain a nuclei.

Nucleus

Acts as the command center of the cell and controls its activities.

Organelle.

A structure within a cell that performs a specific function.

Chloroplasts

The cells of plants and some protists use these pigmented organelles in the production of energy.

Mitosis

The entire process of cell division including division of the nucleus and the cytoplasm.

Meiosis

Process by which the number of chromosomes per cell is cut in half through separation of homologous chromosomes.

Mitochondria

Break down of food molecules such as glucose in order to release energy that can be used for growth, health maintenance, and reproduction.

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set