bio vocab

Nucleus

Nucleus

Is a large membrane enclosed structure that contains the cells genetic material in the form of DNA, contains cells activity

active transport

Energy needed moves from low to high concentration

Endocytosis

• Importing a large chunk of material in the cell requiring the cell membrane to the tear open

Centriole

• paired barrel shaped organelles located in the cytoplasm of animal cell near the nuclear envelope

Nucleolus

• Small, dense region within a nucleus

Cytoskeleton

Networks of proteins of filaments within certain cells that help the cell, maintain its shape and is involved in many forms of cell movement

Organ

Is a group of tissues that work together for the overall function.

Tissue

A group of cells that have similar structure and the function together as a unit

Hypertonic

Any external solution that has a high solute concentration to low water, concentration, compared to body fluids

Organelle

Specialized structures that performs important cellular function within a eukaryotic cells

Lysosome

Small organelles filled with enzymes and break down any structure that is malfunctioning

cell membrane

Made of double sheet called, lipid bilayer that regulates what enters and leaves the cell

Mitochondria

Are enclosed by two membranes, an outer membrane, and an inner membrane, the inner membrane is folded up inside the organelle

Concentration

The amount of a substance

Prokaryote

Contain no nucleus or membrane bound organelles

Vacuole

A membrane bound, organelle, stores nutrients and water

cell wall

Provide support and protection, for the cells, is made of cellulose

lipid bilayer

A continuous double layer of lipid molecules

Chloroplast

Area surrounded by two membranes, inside the organelle are a large stack of other membranes, which contains a small green pigment, serves as a sight of photosynthesis

Chromatin

The material of which the chromosomes of organisms, other than bacteria are composed

cell specialization

Is a process through which genetic or common cell transform into specialized cells with defined tasks.

Osmosis

The diffusion of water through a selectively permeable membrane

facilitated diffusion

Molecules diffuse across the plasma, membrane with assistance form  membrane proteins.

Exocytosis

The fusion of secretary vesicles with the plasma membrane

Chromosome

In a thread, like structure within the nucleus, containing the genetic information that is passed from one generation of cells to the next

cell theory

The fundamental concept of biology. All living things are made of cells, cells are the basic unit of structure and function of living things, new cells come from pre-existing cells.

cytoplasm

The fluid inside a cell but outside of a cell nucleus

Equilibrium

The state in which all forces acting on the body are balance with an equal and opposite force

Pinocytosis

Active, energy, consuming process where extracellular fluid and solutes, are taken into a cell via small  vesicles

Hypotonic

Any external solution as a low solute concentration in a high water concentration to body fluids. A low solute concentration.

nuclear envelope

Layer of two membranes that surrounds the nucleus of a cell

golgi apparatus

Package products to proteins and send them along. Appears as a stack of closely oppose membranes, deals with protein

Ribosome

Small particles of RNA in protein that produce proteins following instructions from the nucleus

Phagocytosis

An important process for nutrition and unicellular organisms whole multicellular organism is found in specialize cells called phagocytes

Cell

The smallest unit that can live on it's own that makes it all living organisms and the tissue in the body

Diffusion

The process of movement of molecules under a concentration gradient away from high to low concentration

Isotonic

Any external solution has the same solute concentration and water concentration compared to body fluids. Equal concentration.

Eukaryotic

• Has a true nucleus and membrane bound organelles