Microscope Flashcards
Passive Transport
a movement of biochemicals and other atomic or molecular substances across cell membranes without need of energy input.
Endocytosis
the transport of solid matter or liquid into a cell by means of a coated vacuole or vesicle
Carbohydrate
any of a class of organic compounds that are polyhydroxy aldehydes or polyhydroxy ketones, or change to such substances on simple chemical transformations, as hydrolysis, oxidation, or reduction, and that form the supporting tissues of plants and are important food for animals and people.
Protien
any of numerous, highly varied organic molecules constituting a large portion of the mass of every life form and necessary in the diet of all animals and other
Cell theory
a scientific theory which describes the properties of cells.
Organ system
Group of organs
Cell wall
A rigid layer protecting the cells insides
Compound
When two or more chemicals are combined
Diffusion
Scattering or moving widely
Active transport
Movement in molecules
Selectively permeable
It is when a cell only lets in certain molecules
DNA
deoxyribonucleic acid
Osmosis
a process by which molecules of a solvent tend to pass through a semipermeable membrane
Nucleus
The area were DNA is stored and were ribosomes are made
Double Helix
a pair of parallel helices intertwined about a common axis, especially that in the structure of the DNA molecule.
Element
An element is a substance consisting of atoms which all have the same number of protons
Cell
What makes up everything
Enzyme
A substance produced by a living organism
Exocytosis
A process we’re the content of a cell is released through a vacuole
Lipid
Any class of organic compounds
Nucleic Acid
A complex organic substance present in living cells
Organ
a part of an organism that is typically self-contained and has a specific vital function, such as the heart or liver in humans.
Cell membrane
the semipermeable membrane surrounding the cytoplasm of a cell.
Tissue
any of the distinct types of material of which animals or plants are made, consisting of specialized cells and their products.
