Advertisement Upgrade to remove ads

Photosynthesis

The chemical process where plants use the sun's energy to produce sugars (food).

Cell Membrane

a thin, phospholipid bilayer, membrane around the cytoplasm of a cell that regulates what enters and exits the cell.

Eukaryote

A cell that contains a nucleus and membrane bound organelles.

Nucleolus

structure inside the nucleus, where ribosomes are made.

Endoplasmic reticulum

a cell structure that forms a maze of passageways in which proteins and other materials are carried from one part of the cell to another.

Chloroplast

organelle found in some plant cells and certain unicellular organisms where photosynthesis takes place.

Selective permeability

a process in which a membrane allows some molecules to pass through while keeping others out.

Passive Transport

The movement of materials through a cell membrane without using energy.

Autotroph

an organism that makes its own food.

Cellular Respiration

the process by which cells use oxygen to produce energy from food.

Interphase

The stage of the cell cycle that takes place before cell division occurs; during this stage, the cell grows, copies its DNA, and prepares to divide.

Anaphase

The stage of meiosis or mitosis when chromosomes move toward opposite ends of the nuclear spindle (third step).

Cell

The basic unit of structure and function in living things.

Nucleus

The organelle that contains the DNA and controls the processes of the cell.

Organelle

Membrane bound structure inside a cell that performs a specific function.

Microtubule

Thin, hollow cylinders made of protein that provide structural support for eukaryotic cells.

Golgi Appartus

Organelle that packages and distrubutes molecules produced by the eurokaryotic cell.

Mitochondrion

An organelle that is the main site of energy conversion through cellular respiration.

Osmosis

Diffusion of water through a selectively permeable membrane from a high concentration to a low concentration.

Tissue

Group of similar cells that work together to do one job.

Heterotroph

Organism that obtains food by eating other organisms.

Anaerobic

Process that does not require oxygen.

Telophase

The final stage of mitosis or meiosis during which a nuclear membrane forms around each set of new chromosomes.

Cytokinesis

Division of the cytoplasm during cell division.

Cell Theory

States that all organisms are made up of one or more cells, the cell is the basic unit of life, and all cells come from other cells.

Cytoplasm

A jelly-like fluid inside the cell in which the organelles are suspended.

Chromatin

Long strands of DNA wrapped around proteins.

Microfilament

Solid rod of protein, thinner than a microtubule, that enables a cell to move or change shape.

Lysosome

A cell organelle that contains digestive enzymes.

Concentration

A measure of the amount of solute dissolved in a solvent.

Facilitated Diffusion

When substances transport across cell membranes using protein carrier molecules.

Organ

a collection of tissues that carry out a specialized function of the body.

Chlorophyll

green pigment in the ch that absorbs light energy used to carry out photosynthesis.

Aerobic

Process that requires oxygen.

Prophase

The first phase of mitosis. During prophase the replicated chromosomes condense, the spindle is formed, and the nuclear envelope breaks apart into vessicles.

Cell Wall

Strong outermost layer around the cell membrane of ONLY plants and some bacteria.

Prokaryote

A unicellular organism that lacks a nucleus and membrane bound organelles

Chromosome

A coiled structure in the nucleus that contains hereditary material.

Ribosome

A tiny structure in the cytoplasm of a cell where proteins are made.

Vacuole

A water-filled sac inside a cell that acts as a storage area.

Diffusion

Movement of particles from an area of high concentration to an area of lower concentration.

Active Transport

The movement of materials through a cell membrane using energy.

Organ System

A group of organs that work together in performing vital body functions.

Mitosis

The process of cell division in which the nucleus divides to form two identical nuclei.

Metaphase

The stage of mitosis and meiosis, during which all of the chromosomes move to the cell's equator.

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