Prentice Hall Biology Chapter 7.2 Vocabulary

Front 1

Chromatin

Back 1

The granular material visible with the nucleus

Front 2

Chromosome

Back 2

Threadlike structure within the nucleus containing the genetic information that is passed from one generation of cells to the next.

Front 3

Nucleolus

Back 3

A small dense region in the nucleus

Front 4

Nuclear Envelope

Back 4

A double membrane layer surronding the nucleus

Front 5

cytoskeleton

Back 5

A structure that helps to support the cell

Front 6

microtubule

Back 6

Hollow tubes of protein about 25 nanometers in diameter. They help perserve cell stucture and also serves as tracks along which organelles are moved

Front 7

ribosome

Back 7

Small particles of RNA and protein. Proteins are assembled in ribosomes

Front 8

enodplasmic riticulum

Back 8

The organelle in which components of the cell membrane are assembled and some proteins are modified.

Front 9

Golgi Apparatus

Back 9

Stack of membranes in the cell in which enezymes attach carbohydrates and lipids to proteins

Front 10

Lysosome

Back 10

Small organelles filled with enzymes used to break down carbohydrates and lipid so that they can be used by the cell

Front 11

Vacuole

Back 11

A sack like structure in which cells store salts, proteins, and carbohydrates

Front 12

Chloroplast

Back 12

Found in plants. Use the energy from the sun to make energy using photosynthesis

Front 13

Mitochondrion

Back 13

Organelles that release energy from stored food molecules. Makes energy that the cell can use for growth, developemnt, and movement.

Front 14

Microfilament

Back 14

Long thin fibers that function in the movement and support of the cell. 7 nanometers in diameter