Biology 7-2 Cell Structures Vocabulary

Front 1

Chromatin

Back 1

The granular material visible within the nucleus.

Front 2

Chromosome

Back 2

Threadlike structures with genetic info that is passed from one generation of cells to the next.

Front 3

Nucleolus

Back 3

A small, dense region of the nuclei.

Front 4

Nuclear envelope

Back 4

A double-membrane layer that surrounds the nucleus. It contains thousands of nuclear pores.

Front 5

Cytoskeleton

Back 5

The STRUCTURE of some cells. It helps to maintain & support the cell. It is made of protein filaments that helps the cell to maintain its shape.

Front 6

Microtubule

Back 6

Long, hollow, tubes made of protein that help movement of the cell

Front 7

Microfilament

Back 7

Long, thin fibers that function in the movement and support of the cell.

Front 8

Ribosome

Back 8

Small particles made of RNA and protein. Makes (synthesis)
proteins.

Front 9

Endoplasmic Reticulum

Back 9

1. "Internal Membrane System". Organelle that assembles parts of the cell membrane.
2. Chemically modifies proteins (Rough ER)

Front 10

Golgi Apparatus

Back 10

A stack of membranes that use enzymes to attach carbohydrates and lipids to proteins.

Front 11

Lysosome

Back 11

Small organelles filled with enzymes.

Front 12

Vacuole

Back 12

Saclike structures that store water, salts, proteins and carbohydrates in cells.

Front 13

Chloroplast

Back 13

Found in plants and other organisms. They make energy-rich food molecules by the sunlight's energy.

Front 14

Mitochondrion

Back 14

Uses energy from food to make high-energy compounds that the cell uses to power growth, development, and movement.