Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
23 Cards in this Set
- Front
- Back
|
Organism
|
things that have all the characteristics of life.
|
|
|
Cell
|
The smallest unit of life.
|
|
|
Unicellular
|
Living things that are made of only one cell.
|
|
|
Homeostasis
|
An organisms ability to maintain steady internal conditions when outside conditions change.
|
|
|
Specie
|
A group of organisms that have similar traits and are able to produce fertile offspring.
|
|
|
Genus
|
A group of similar species.
|
|
|
Binomial nomenclature
|
Gives each organism a two word scientific name.
|
|
|
Cell theory
|
States that all living things are made of one or more cells, the cell is the smallest unit of life and all new cells come from preexisting cells.
|
|
|
Nucleic Acid
|
Macromolecules that are formed when long chains of molecules called nucleotides join together.
|
|
|
Protein
|
Long chains of amino acid molecules.
|
|
|
Lipid
|
Large macromolecules that do not dissolve in water.
|
|
|
Carbohydrate
|
One sugar molecule, two sugar molecule, or a long chain of sugar molecules.
|
|
|
Cell membrane
|
The flexible covering that protects the inside of a cell from the environment outside the cell.
|
|
|
Cytoplasm
|
A fluid inside a cell that contains salts and other molecules.
|
|
|
Organelle
|
Other structures with specialized functions surrounded by the membrane.
|
|
|
Nucleus
|
part of a eukaryotic cell that directs cell activities and contains genetic info stored in DNA.
|
|
|
Chloroplast
|
Membrane bound organelles that use light energy and make food-a sugar called glucose-from water and CO2 in a process called photosynthesis.
|
|
|
Passive transport
|
The movement of substances through the cell membrane without using cell energy.
|
|
|
Diffusion
|
The movement of substances from an area of a higher concentration to an area of lower concentration.
|
|
|
Osmosis
|
The diffusion of water molecules only through membrane
|
|
|
Facilitated Diffusion
|
When molecules pass through a cell membrane using special proteins called transport proteins
|
|
|
Active Transport
|
the movement of substances through a cell membrane only using the cell's energy
|
|
|
Endocytosis
|
process during which a cell takes in a substance by surrounding it with the cell membrane
|
