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Science Cell MGF
FLashcards
10
Science
6th Grade
04/13/2011

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Term

ORGANELLE 

 
   
Definition

In cell biology, an organelle is a specialized subunit within a cell that has a specific function, and is usually separately enclosed within its own lipid bilayer.

An organelle is all the working parts inside a cell

Term

NUCLEOLUS

Definition
The nucleolus (also called nucleole) is a non-membrane bound structure[1] composed of proteins and nucleic acids found within the nucleus. Ribosomal RNA (rRNA) is transcribed and assembled within the nucleolus.
Term

EUKARYOTE

Definition

A single-celled or multicellular organism whose cells contain a distinct membrane-bound nucleus.

Term

 CELL WALL

Definition

 The rigid outermost cell layer found in plants and certain algae, bacteria, and fungi but absent from animal cells.

Term

VESICLE

Definition

A membranous and usually fluid-filled pouch (as a cyst, vacuole, or cell) in a plant or animal cell. 

Term

DNA

Definition

Is a nucleic acid that contains the genetic instructions used in the development and functioning of all known living organisms.

Term

CYTOPLASM

Definition

The living part of the cell inside the cell membrane and outside the nuclear membrane.

Term

CHLOROPLAST

Definition

Are organelles found in plant cells and other eukaryotic organisms that conduct photosynthesis.

Term

VACUOLE

Definition

A small cavity in the cytoplasm of a cell, bound by a single membrane and containing water, food, or metabolic waste.

Term

CHLOROPHYLL

Definition

A green pigment, present in all green plants and in cyanobacteria, responsible for the absorption of light to provide energy for photosynthesis.  

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